Details of the Researcher

PHOTO

Gas Katarzyna
Section
Center for Science and Innovation in Spintronics
Job title
Assistant Professor
e-Rad No.
90992412

Education 1

  • Institute of Physics Polish Academy of Sciences　PhD

    2008/10 - 2013/09

Committee Memberships 1

  • European Magnetic Association　JEMS conference International Advisory Committee

    2023/01 - 2028/12

Professional Memberships 1

  • Japan Society of Applied Physics

    2024/07 -

Research Areas 3

  • Natural sciences / Semiconductors, optical and atomic physics /

  • Nanotechnology/Materials / Applied materials /

  • Natural sciences / Magnetism, superconductivity, and strongly correlated systems /

Papers 57

  1. PbTe/SnTe heterostructures—candidate platform for studying spin-triplet superconductivity

    P Sidorczak, W Wołkanowicz, A Kaleta, M Wójcik, S Gierałtowska, K Gas, T Płociński, R Minikayev, S Kret, M Sawicki, T Wojtowicz, D Wasik, M Gryglas-Borysiewicz, K Dybko

    Superconductor Science and Technology　2026/06/01

    DOI： 10.1088/1361-6668/ae6c9a 　

  2. Pair anisotropy in disordered magnetic systems

    K. Das, N. Gonzalez Szwacki, K. Gas, M. Sawicki, R. Hayn, D. Sztenkiel

    Physical Review B　2026/05/19

    DOI： 10.1103/6sqp-zt9v 　

  3. Reliable magnetometry for antiferromagnets and thin films: Correcting substrate artifacts in Mn3Sn/MgO systems

    Katarzyna Gas, Maciej Sawicki

    Physical Review Applied　2026/01/06

    DOI： 10.1103/wvr7-9s6r 　

  4. Self-organization mechanism in Bridgman-grown MnBi2Te4/(Bi2Te3)n: influence on layer sequence and magnetic properties

    Paweł Skupiński, Kamil Sobczak, Katarzyna Gas, Anna Reszka, Yadhu K. Edathumkandy, Jakub Majewski, Krzysztof Grasza, Maciej Sawicki, Agnieszka Wołoś

    Journal of Materials Chemistry C　2026

    DOI： 10.1039/D6TC00347H 　

  5. Cr resonant impurity for studies of band inversion and band offsets in IV-VI semiconductors

    A. Królicka, K. Gas, W. Dobrowolski, H. Przybylińska, Y. K. Edathumkandy, J. Korczak, E. Łusakowska, R. Minikayev, A. Reszka, R. Jakieła, L. Kowalczyk, A. Mirowska, M. Gryglas-Borysiewicz, J. Kossut, M. Sawicki, A. Łusakowski, P. Bogusławski, T. Story, K. Dybko

    Physical Review B　2025/12/26

    DOI： 10.1103/k534-gc2n 　

  6. Temperature dependence of current-induced switching in thin epitaxial films of Mn3Sn: Revealing the dominant role of spin–orbit torque

    Kota Nihei, Tomohiro Uchimura, Jiahao Han, Katarzyna Gas, Shun Kanai, Hideo Ohno, Shunsuke Fukami

    Applied Physics Letters　2025/09/30

    DOI： 10.1063/5.0294438 　

  7. Ferromagnetic resonance in a magnetically dilute percolating ferromagnet: An experimental and theoretical study

    Y. K. Edathumkandy, K. Das, K. Gas, D. Sztenkiel, D. Hommel, H. Przybylińska, M. Sawicki

    Physical Review B　2025/07/16

    DOI： 10.1103/5rzr-478b 　

  8. Magnetic phase diagram of Mn3+xSn1−x epitaxial thin films: Extending the anomalous Hall effect to low temperatures via intrinsic alloying

    K. Gas, J.-Y. Yoon, Y. Sato, H. Kubota, P. Dłużewski, S. Kret, J. Z. Domagala, Y. K. Edathumkandy, Y. Takeuchi, S. Kanai, H. Ohno, M. Sawicki, S. Fukami

    APL Materials　2025/04/01

    Publisher: arXiv

    DOI： 10.1063/5.0254918 　

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    Antiferromagnets with broken time-reversal symmetry, such as Mn3Sn, have emerged as promising platforms for exploring topological and correlated electron physics. Mn3Sn is known to show two magnetic phase transitions: a non-collinear inverse triangular antiferromagnetic (IT-AFM) spin configuration is formed below its Neel temperature, whereas at T1 that usually locates below room temperature, it transits to an incommensurate spin state. Accordingly, intriguing properties such as a strong anomalous Hall effect, observed from TN to T1, disappear below T1, limiting its utility at low temperatures. While bulk Mn3Sn has been extensively studied, the magnetic phase transitions and their tunability in thin films remain largely unexplored. Here, we investigate the magnetic and magneto-transport properties of Mn3+xSn1-x epitaxial thin films prepared by magnetron sputtering, systematically varying the Mn-Sn composition. Our results reveal that intrinsic alloying with Mn provides us with a handle to tune T1, with the IT-AFM phase stabilized down to liquid helium temperatures for x > 0.15. From a magnetic phase diagram for epitaxial thin films, we also find a consistent magnetic anomaly ~55 K below TN, accompanied by thermal hysteresis. Furthermore, the reduction of TN in thin films relative to bulk values is shown to correlate with lattice parameter changes. These findings extend the accessible temperature range for Mn3Sn's topological properties, paving the way for novel applications and further investigations into the interplay of spin, lattice, and electronic degrees of freedom in thin-film geometries.

  9. Electric-field manipulation of magnetization in an insulating dilute ferromagnet through piezoelectromagnetic coupling

    Dariusz Sztenkiel, Katarzyna Gas, Nevill Gonzalez Szwacki, Marek Foltyn, Cezary Śliwa, Tomasz Wojciechowski, Jarosław Z. Domagala, Detlef Hommel, Maciej Sawicki, Tomasz Dietl

    Communications Materials　2025/01/20

    DOI： 10.1038/s43246-024-00711-0 　

  10. Metal-based compounds: Synthesis and characterization of new thiazole-based iridium and palladium complexes with potential anticancer and other biological activities

    Ekaterina Pivovarova, Alina Climova, Marcin Świątkowski, Marek Dzięgielewski, Krzysztof Walczyński, Marek Staszewski, Katarzyna Gas, Maciej Sawicki, Izabela Korona-Głowniak, Agnieszka Korga-Plewko, Magdalena Iwan, Yulia Steksova, Agnieszka Czylkowska

    Polyhedron　2024/11

    DOI： 10.1016/j.poly.2024.117211 　

    ISSN： 0277-5387

  11. Coexistence of anomalous Hall effect and weak magnetization in a nominally collinear antiferromagnet MnTe

    K. P. Kluczyk, K. Gas, M. J. Grzybowski, P. Skupiński, M. A. Borysiewicz, T. Fąs, J. Suffczyński, J. Z. Domagala, K. Grasza, A. Mycielski, M. Baj, K. H. Ahn, K. Výborný, M. Sawicki, M. Gryglas-Borysiewicz

    Physical Review B　2024/10/21

    Publisher: arXiv

    DOI： 10.1103/PhysRevB.110.155201 　

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    Anomalous Hall effect (AHE) plays important role in the rapidly developing field of antiferromagnetic spintronics. It has been recently discussed that it can be a feature of not only uncompensated magnetic systems but also in altermagnetic materials. Hexagonal MnTe belongs to this appealing group of compounds exhibiting AHE and is commonly perceived as magnetically compensated. Here, we demonstrate that bulk form of MnTe exhibits small but detectable magnetic moment correlating with hysteretic behaviour of the AHE. We formulate a phenomenological model which explains how this feature allows to create a disbalance between states with opposite Néel vector and prevent the AHE signal from averaging out to zero. Moreover, we show how the dependence of AHE on the Néel vector arises on microscopical level and highlight the differences in Berry curvature between magnetically compensated and uncompensated systems.

  12. Spin Hall magnetoresistance in Pt/(Ga,Mn)N devices

    J. Aaron Mendoza-Rodarte, Katarzyna Gas, Manuel Herrera-Zaldívar, Detlef Hommel, Maciej Sawicki, Marcos H. D. Guimarães

    Applied Physics Letters　2024/10/07

    Publisher: arXiv

    DOI： 10.1063/5.0218364 　

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    Diluted magnetic semiconductors (DMS) have attracted significant attention for their potential in spintronic applications. Particularly, magnetically-doped GaN is highly attractive due to its high relevance for the CMOS industry and the possibility of developing advanced spintronic devices which are fully compatible with the current industrial procedures. Despite this interest, there remains a need to investigate the spintronic parameters that characterize interfaces within these systems. Here, we perform spin Hall magnetoresistance (SMR) measurements to evaluate the spin transfer at a Pt/(Ga,Mn)N interface. We determine the transparency of the interface through the estimation of the real part of the spin mixing conductance finding $G_r = 2.6\times 10^{14} \, Ω^{-1} m^{-2}$, comparable to state-of-the-art yttrium iron garnet (YIG)/Pt interfaces. Moreover, the magnetic ordering probed by SMR above the (Ga,Mn)N Curie temperature TC provides a broader temperature range for the efficient generation and detection of spin currents, relaxing the conditions for this material to be applied in new spintronic devices.

  13. Coexistence of antiferromagnetic cubic and ferromagnetic tetragonal polymorphs in epitaxial CuMnSb films

    A. Ciechan, P. Dłużewski, S. Kret, K. Gas, L. Scheffler, C. Gould, J. Kleinlein, M. Sawicki, L. W. Molenkamp, P. Bogusławski

    Physical Review B　2024/07/25

    DOI： 10.1103/PhysRevB.110.014436 　

  14. Synthesis, mesomorphic and magnetic properties at room temperature of biphenyl ester-aromatic imine with terminal alkoxy chains and methoxy substituent

    Nur Amanina Juniasari Tun Nur Iskandar, Guan-Yeow Yeap, Nobuyuki Maeta, M. Ito Masato, Katarzyna Gas, Maciej Sawicki

    Liquid Crystals　2024/03/04

    DOI： 10.1080/02678292.2024.2321475 　

    ISSN： 0267-8292 1366-5855

  15. (Ga,Mn)N—Epitaxial growth, structural, and magnetic characterization—Tutorial

    Edyta Piskorska-Hommel, Katarzyna Gas

    Journal of Applied Physics　2024/02/21

    DOI： 10.1063/5.0189159 　

  16. Physicochemical properties and mechanism of action of a new copper(<scp>ii</scp>) pyrazine-based complex with high anticancer activity and selectivity towards cancer cells

    Bartlomiej Rogalewicz, Tomasz Sierański, M. Szczesio, A. Olczak, K. Gobis, C. Orlewska, I. Korona-Głowniak, A. Korga-Plewko, M. Iwan, M. Michalczuk, J. Kubik, G. Adamczuk, M. Korga, Natalia Rutkowska, T. Boruta, Katarzyna Gas, Maciej Sawicki, E. Poleszak, Waldemar Maniukiewicz, Marcin Świątkowski, Agnieszka Czylkowska

    RSC Advances　2024

    DOI： 10.1039/d4ra06874b 　

    ISSN： 2046-2069

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    <jats:p>The presented work underlines the importance of coordination compounds in the development of new anticancer agents that are safer and more efficient.</jats:p>

  17. Wurtzite vs. rock-salt MnSe epitaxy: electronic and altermagnetic properties

    Michał J. Grzybowski, Carmine Autieri, Jaroslaw Domagala, Cezary Krasucki, Anna Kaleta, Sławomir Kret, Katarzyna Gas, Maciej Sawicki, Rafał Bożek, Jan Suffczyński, Wojciech Pacuski

    Nanoscale　2024

    DOI： 10.1039/D3NR04798A 　

  18. Influence of Bi doping on the electronic structure of (Ga,Mn)As epitaxial layers

    Oksana Yastrubchak, Nataliia Tataryn, Lukasz Gluba, Sergii Mamykin, Janusz Sadowski, Tomasz Andrearczyk, Jaroslaw Z. Domagala, Olga Kondratenko, Volodymyr Romanyuk, Olena Fedchenko, Yaryna Lytvynenko, Olena Tkach, Dmitry Vasilyev, Sergey Babenkov, Katerina Medjanik, Katarzyna Gas, Maciej Sawicki, Tadeusz Wosinski, Gerd Schönhense, Hans-Joachim Elmers

    Scientific Reports　13　(1)　2023/10/12

    Publisher: Springer Science and Business Media {LLC}

    DOI： 10.1038/s41598-023-43702-w 　

    ISSN： 2045-2322

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    <jats:title>Abstract</jats:title><jats:p>The influence of the addition of Bi to the dilute ferromagnetic semiconductor (Ga,Mn)As on its electronic structure as well as on its magnetic and structural properties has been studied. Epitaxial (Ga,Mn)(Bi,As) layers of high structural perfection have been grown using low-temperature molecular-beam epitaxy. Post-growth annealing of the samples improves their structural and magnetic properties and increases the hole concentration in the layers. Hard X-ray angle-resolved photoemission spectroscopy reveals a strongly dispersing band in the Mn-doped layers, which crosses the Fermi energy and is caused by the high concentration of Mn-induced itinerant holes located in the valence band. An increased density of states near the Fermi level is attributed to additional localized Mn states. In addition to a decrease in the chemical potential with increasing Mn doping, we find significant changes in the valence band caused by the incorporation of a small atomic fraction of Bi atoms. The spin–orbit split-off band is shifted to higher binding energies, which is inconsistent with the impurity band model of the band structure in (Ga,Mn)As. Spectroscopic ellipsometry and modulation photoreflectance spectroscopy results confirm the valence band modifications in the investigated layers.</jats:p>

  19. Impact of Bismuth Incorporation into (Ga,Mn)As Dilute Ferromagnetic Semiconductor on Its Magnetic Properties and Magnetoresistance

    Tomasz Andrearczyk, Khrystyna Levchenko, Janusz Sadowski, Katarzyna Gas, Andrei Avdonin, Jerzy Wrobel, Tadeusz Figielski, Maciej Sawicki, Tadeusz Wosinski

    MATERIALS　16　(2)　2023/01

    DOI： 10.3390/ma16020788 　

    eISSN： 1996-1944

  20. A Simplified Method of the Assessment of Magnetic Anisotropy of Commonly Used Sapphire Substrates in SQUID Magnetometers

    Katarzyna Gas, Maciej Sawicki

    MATERIALS　15　(23)　2022/12

    DOI： 10.3390/ma15238532 　

    eISSN： 1996-1944

  21. Bulk-like magnetic properties in MBE-grown unstrained, antiferromagnetic CuMnSb

    L. Scheffler, J. Werther, K. Gas, C. Schumacher, C. Gould, M. Sawicki, J. Kleinlein, L. W. Molenkamp

    APPLIED PHYSICS LETTERS　121　(1)　2022/07

    DOI： 10.1063/5.0092828 　

    ISSN： 0003-6951

    eISSN： 1077-3118

  22. Antitumor Activity and Physicochemical Properties of New Thiosemicarbazide Derivative and Its Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) Complexes

    Bartlomiej Rogalewicz, Alina Climova, Ekaterina Pivovarova, Jaroslaw Sukiennik, Kamila Czarnecka, Pawel Szymanski, Malgorzata Szczesio, Katarzyna Gas, Maciej Sawicki, Monika Pitucha, Agnieszka Czylkowska

    MOLECULES　27　(9)　2022/05

    DOI： 10.3390/molecules27092703 　

    eISSN： 1420-3049

  23. In Situ Compensation Method for Precise Integral SQUID Magnetometry of Miniscule Biological, Chemical, and Powder Specimens Requiring the Use of Capsules

    Katarzyna Gas, Maciej Sawicki

    MATERIALS　15　(2)　2022/01

    DOI： 10.3390/ma15020495 　

    eISSN： 1996-1944

  24. Magnetic constitution of topologically trivial thermoelectric PbTe:Cr

    Katarzyna Gas, Aleksandra Krolicka, Krzysztof Dybko, Piotr Nowicki, Zeinab Khosravizadeh, Tomasz Story, Maciej Sawicki

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS　537　2021/11

    DOI： 10.1016/j.jmmm.2021.168154 　

    ISSN： 0304-8853

    eISSN： 1873-4766

  25. Magnetic properties of wurtzite (Ga,Mn)As

    Katarzyna Gas, Janusz Sadowski, Maciej Sawicki

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS　533　2021/09

    DOI： 10.1016/j.jmmm.2021.168012 　

    ISSN： 0304-8853

    eISSN： 1873-4766

  26. Oxidation of MBE-Grown ZnTe and ZnTe/Zn Nanowires and Their Structural Properties

    Katarzyna Gas, Slawomir Kret, Wojciech Zaleszczyk, Eliana Kaminska, Maciej Sawicki, Tomasz Wojtowicz, Wojciech Szuszkiewicz

    MATERIALS　14　(18)　2021/09

    DOI： 10.3390/ma14185252 　

    eISSN： 1996-1944

  27. Improved-sensitivity integral SQUID magnetometry of (Ga,Mn)N thin films in proximity to Mg-doped GaN

    Katarzyna Gas, Gerd Kunert, Piotr Dluzewski, Rafal Jakiela, Detlef Hommel, Maciej Sawicki

    JOURNAL OF ALLOYS AND COMPOUNDS　868　2021/07

    DOI： 10.1016/j.jallcom.2021.159119 　

    ISSN： 0925-8388

    eISSN： 1873-4669

  28. Anomalous Hall effect in bismuth

    Bruno Cury Camargo, Piotr Gierlowski, Andrei Alaferdov, Iraida N. Demchenko, Maciej Sawicki, Katarzyna Gas, Yakov Kopelevich

    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS　525　2021/05

    DOI： 10.1016/j.jmmm.2020.167581 　

    ISSN： 0304-8853

    eISSN： 1873-4766

  29. Structural, Spectroscopic, Thermal, and Magnetic Properties of a New Dinuclear Copper Coordination Compound with Tiglic Acid

    Marcin Swiatkowski, Suneel Lanka, Agnieszka Czylkowska, Katarzyna Gas, Maciej Sawicki

    MATERIALS　14　(9)　2021/05

    DOI： 10.3390/ma14092148 　

    eISSN： 1996-1944

  30. Unravelling the local crystallographic structure of ferromagnetic gamma '-GayFe4-yN nanocrystals embedded in GaN

    Andrea Navarro-Quezada, Katarzyna Gas, Anna Spindlberger, Fahim Karimi, Maciej Sawicki, Gianluca Ciatto, Alberta Bonanni

    SCIENTIFIC REPORTS　11　(1)　2021/02

    DOI： 10.1038/s41598-021-82380-4 　

    ISSN： 2045-2322

  31. Crystal field model simulations of magnetic response of pairs, triplets and quartets of Mn3+ ions in GaN

    D. Sztenkiel, K. Gas, J. Z. Domagala, D. Hommel, M. Sawicki

    NEW JOURNAL OF PHYSICS　22　(12)　2020/12

    DOI： 10.1088/1367-2630/abcce7 　

    ISSN： 1367-2630

  32. Molecular beam epitaxy of the half-Heusler antiferromagnet CuMnSb

    L. Scheffler, K. Gas, S. Banik, M. Kamp, J. Knobel, H. Lin, C. Schumacher, C. Gould, M. Sawicki, J. Kleinlein, L. W. Molenkamp

    PHYSICAL REVIEW MATERIALS　4　(11)　2020/11

    DOI： 10.1103/PhysRevMaterials.4.114402 　

    ISSN： 2475-9953

  33. Out-of-Plane Magnetic Anisotropy in Ordered Ensembles of FeyN Nanocrystals Embedded in GaN

    Andrea Navarro-Quezada, Katarzyna Gas, Tia Truglas, Viola Bauernfeind, Margherita Matzer, Dominik Kreil, Andreas Ney, Heiko Groiss, Maciej Sawicki, Alberta Bonanni

    MATERIALS　13　(15)　2020/08

    DOI： 10.3390/ma13153294 　

    eISSN： 1996-1944

  34. Spin flop and crystalline anisotropic magnetoresistance in CuMnAs

    M. Wang, C. Andrews, S. Reimers, O. J. Amin, P. Wadley, R. P. Campion, S. F. Poole, J. Felton, K. W. Edmonds, B. L. Gallagher, A. W. Rushforth, O. Makarovsky, K. Gas, M. Sawicki, D. Kriegner, J. Zubac, K. Olejnik, Novak, V, T. Jungwirth, M. Shahrokhvand, U. Zeitler, S. S. Dhesi, F. Maccherozzi

    PHYSICAL REVIEW B　101　(9)　2020/03

    DOI： 10.1103/PhysRevB.101.094429 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  35. Raman scattering studies of the lateral Mn distribution in MBE-grown Ga1-xMnxN epilayers

    Katarzyna Gas, Detlef Hommel, Maciej Sawicki

    JOURNAL OF ALLOYS AND COMPOUNDS　817　2020/03

    DOI： 10.1016/j.jallcom.2019.152789 　

    ISSN： 0925-8388

    eISSN： 1873-4669

  36. Anisotropic and magnetic properties in non-metal and non-radical organic aggregates of tri-substituted phenyl derivatives

    Nur Amanina Juniasari Tun Nur Iskandar, Yeap Guan-Yeow, Nobuyuki Maeta, Masato M. Ito, Yoshiyuki Nakamura, Katarzyna Gas, Maciej Sawicki

    NEW JOURNAL OF CHEMISTRY　44　(1)　210-217　2020/01

    DOI： 10.1039/c9nj02730k 　

    ISSN： 1144-0546

    eISSN： 1369-9261

  37. Electrical characteristics of vertical-geometry Schottky junction to magnetic insulator (Ga,Mn)N heteroepitaxially grown on sapphire

    Karolina Kalbarczyk, Krzysztof Dybko, Katarzyna Gas, Dariusz Sztenkiel, Marek Foltyn, Magdalena Majewicz, Piotr Nowicki, ElZbieta Lusakowska, Detlef Hommel, Maciej Sawicki

    JOURNAL OF ALLOYS AND COMPOUNDS　804　415-420　2019/10

    DOI： 10.1016/j.jallcom.2019.07.026 　

    ISSN： 0925-8388

    eISSN： 1873-4669

  38. Enhanced Ferromagnetism in Cylindrically Confined MnAs Nanocrystals Embedded in Wurtzite GaAs Nanowire Shells

    Anna Kaleta, Slawomir Kret, Katarzyna Gas, Boguslawa Kurowska, Serhii B. Kryvyi, Bogdan Rutkowski, Nevill Gonzalez Szwacki, Maciej Sawicki, Janusz Sadowski

    NANO LETTERS　19　(10)　7324-7333　2019/10

    DOI： 10.1021/acs.nanolett.9b02956 　

    ISSN： 1530-6984

    eISSN： 1530-6992

  39. In situ compensation method for high-precision and high-sensitivity integral magnetometry

    Katarzyna Gas, Maciej Sawicki

    MEASUREMENT SCIENCE AND TECHNOLOGY　30　(8)　2019/08

    DOI： 10.1088/1361-6501/ab1b03 　

    ISSN： 0957-0233

    eISSN： 1361-6501

  40. Magnetotransport in phase-separated (Ga,Fe)N with gamma '-Gay Fe4-yN nanocrystals

    A. Navarro-Quezada, M. Aiglinger, B. Faina, K. Gas, M. Matzer, Tian Li, R. Adhikari, M. Sawicki, A. Bonanni

    PHYSICAL REVIEW B　99　(8)　2019/02

    DOI： 10.1103/PhysRevB.99.085201 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  41. Diffusion of Mn in gallium nitride: Experiment and modelling

    Rafal Jakiela, Katarzyna Gas, Maciej Sawicki, Adam Barcz

    JOURNAL OF ALLOYS AND COMPOUNDS　771　215-220　2019/01

    DOI： 10.1016/j.jallcom.2018.08.263 　

    ISSN： 0925-8388

    eISSN： 1873-4669

  42. Impact of substrate temperature on magnetic properties of plasma-assisted molecular beam epitaxy grown (Ga,Mn)N

    Katarzyna Gas, Jaroslaw Z. Domagala, Rafal Jakiela, Gerd Kunert, Piotr Dluzewski, Edyta Piskorska-Hommel, Wojciech Paszkowicz, Dariusz Sztenkiel, Maciej J. Winiarski, Dorota Kowalska, Rafal Szukiewicz, Tomasz Baraniecki, Andrzej Miszczuk, Detlef Hommel, Maciej Sawicki

    JOURNAL OF ALLOYS AND COMPOUNDS　747　946-959　2018/05

    DOI： 10.1016/j.jallcom.2018.03.056 　

    ISSN： 0925-8388

    eISSN： 1873-4669

  43. Fermi level and bands offsets determination in insulating (Ga,Mn)N/GaN structures

    L. Janicki, G. Kunert, M. Sawicki, E. Piskorska-Hommel, K. Gas, R. Jakiela, D. Hommel, R. Kudrawiec

    SCIENTIFIC REPORTS　7　2017/02

    DOI： 10.1038/srep41877 　

    ISSN： 2045-2322

  44. Wurtzite (Ga,Mn)As nanowire shells with ferromagnetic properties

    J. Sadowski, S. Kret, A. Siusys, T. Wojciechowski, K. Gas, M. F. Islam, C. M. Canali, M. Sawicki

    NANOSCALE　9　(6)　2129-2137　2017/02

    DOI： 10.1039/c6nr08070g 　

    ISSN： 2040-3364

    eISSN： 2040-3372

  45. Hardening of (Pb,Cd)Te Crystal Lattice with an Increasing CdTe Content in the Solid Solution

    R. Kuna, S. Adamiak, S. Petit, P. Baroni, K. Gas, R. Minikayev, A. Szczerbakow, J. Lazewski, W. Szuszkiewicz

    ACTA PHYSICA POLONICA A　130　(5)　1245-1247　2016/11

    DOI： 10.12693/APhysPolA.130.1245 　

    ISSN： 0587-4246

    eISSN： 1898-794X

  46. Inelastic X-Ray Scattering Studies of Phonon Dispersion in PbTe and (Pb,Cd)Te Solid Solution

    R. Kuna, R. Minikayev, M. Trzyna, K. Gas, A. Bosak, A. Szczerbakow, S. Petit, J. Lazewski, W. Szuszkiewicz

    ACTA PHYSICA POLONICA A　130　(5)　1251-1254　2016/11

    DOI： 10.12693/APhysPolA.130.1251 　

    ISSN： 0587-4246

    eISSN： 1898-794X

  47. Stretching magnetism with an electric field in a nitride semiconductor

    D. Sztenkiel, M. Foltyn, G. P. Mazur, R. Adhikari, K. Kosiel, K. Gas, M. Zgirski, R. Kruszka, R. Jakiela, Tian Li, A. Piotrowska, A. Bonanni, M. Sawicki, T. Dietl

    NATURE COMMUNICATIONS　7　2016/10

    DOI： 10.1038/ncomms13232 　

    ISSN： 2041-1723

  48. Synchrotron radiation photoemission study of Pb1-xCdxTe crystal with local structure

    B. A. Orlowski, A. Szczerbakow, P. Dziawa, K. Gas, A. Reszka, B. J. Kowalski, S. Thiess, W. Drube

    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS　364　132-135　2015/12

    DOI： 10.1016/j.nimb.2015.06.021 　

    ISSN： 0168-583X

    eISSN： 1872-9584

  49. All-Wurtzite (In,Ga)As-(Ga,Mn)As Core Shell Nanowires Grown by Molecular Beam Epitaxy

    Aloyzas Siusys, Janusz Sadowski, Maciej Sawicki, Slawomir Kret, Tomasz Wojciechowski, Katarzyna Gas, Wojciech Szuszkiewicz, Agnieszka Kaminska, Tomasz Story

    NANO LETTERS　14　(8)　4263-4272　2014/08

    DOI： 10.1021/nl500896d 　

    ISSN： 1530-6984

    eISSN： 1530-6992

  50. Raman scattering as a tool to characterize semiconductor crystals, thin layers, and low-dimensional structures containing transition metals

    Wojciech Szuszkiewicz, Michel Jouanne, Jean-Francois Morhange, Makoto Kanehisa, Elzbieta Dynowska, Katarzyna Gas, Elzbieta Janik, Grzegorz Karczewski, Rafal Kuna, Tomasz Wojtowicz

    PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS　251　(6)　1133-1143　2014/06

    DOI： 10.1002/pssb.201350142 　

    ISSN： 0370-1972

    eISSN： 1521-3951

  51. Structural and optical properties of self-catalytic GaAs:Mn nanowires grown by molecular beam epitaxy on silicon substrates

    Katarzyna Gas, Janusz Sadowski, Takeshi Kasama, Aloyzas Siusys, Wojciech Zaleszczyk, Tomasz Wojciechowski, Jean-Francois Morhange, Abdulmenaf Altintas, H. Q. Xu, Wojciech Szuszkiewicz

    NANOSCALE　5　(16)　7410-7418　2013

    DOI： 10.1039/c3nr01145c 　

    ISSN： 2040-3364

    eISSN： 2040-3372

  52. Photoemission Electronic Spectra of CdTe/Pb0.95Eu0.05Te/CdTe

    B. A. Orlowski, P. Dziawa, K. Gas, A. Reszka, S. Mickievicius, S. Thiess, W. Drube

    ACTA PHYSICA POLONICA A　120　(5)　960-963　2011/11

    DOI： 10.12693/APhysPolA.120.960 　

    ISSN： 0587-4246

    eISSN： 1898-794X

  53. Selected optical properties of core/shell ZnMnTe/ZnO nanowire structures

    Katarzyna Gas, Elzbieta Janik, Wojciech Zaleszczyk, Elzbieta Dynowska, Miroslaw Kutrowski, Agnieszka Kaminska, Jean-Francois Morhange, Lukasz Wachnicki, Tomasz Wojciechowski, Robert Holyst, Marek Godlewski, Elzbieta Guziewicz, Tomasz Wojtowicz, Wojciech Szuszkiewicz

    PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS　248　(7)　1592-1595　2011/07

    DOI： 10.1002/pssb.201001150 　

    ISSN： 0370-1972

  54. Morphology and Selected Properties of Core/Shell ZnTe-Based Nanowire Structures Containing ZnO

    K. Gas, E. Janik, W. Zaleszczyk, I. Pasternak, E. Dynowska, K. Fronc, V. Kolkovsky, S. Kret, J. F. Morhange, A. Reszka, M. Wiater, W. Caliebe, G. Karczewski, B. J. Kowalski, W. Szuszkiewicz, T. Wojtowicz

    ACTA PHYSICA POLONICA A　119　(5)　612-614　2011/05

    DOI： 10.12693/APhysPolA.119.612 　

    ISSN： 0587-4246

  55. Photoemission spectra of frozen rock salt Pb1-xCdxTe crystal

    B. A. Orlowski, A. Szczerbakow, B. J. Kowalski, M. A. Pietrzyk, K. Gas, M. Szot, W. Szuszkiewicz, V. Domukhovski, A. Reszka, S. Mickevicius, R. L. Johnson, S. Thiess, W. Drube

    JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA　184　(3-6)　199-202　2011/04

    DOI： 10.1016/j.elspec.2010.12.029 　

    ISSN： 0368-2048

    eISSN： 1873-2526

  56. Physical Properties of ZnCoO Tetrapods and Nanofibers

    K. Gas, K. Fronc, P. Dziawa, W. Knoff, T. Wojciechowski, W. Zaleszczyk, A. Baranowska-Korczyc, J. F. Morhange, W. Paszkowicz, D. Elbaum, G. Karczewski, T. Wojtowicz, W. Szuskiewicz

    ACTA PHYSICA POLONICA A　116　(5)　868-870　2009/11

    DOI： 10.12693/APhysPolA.116.868 　

    ISSN： 0587-4246

  57. Magnetic Properties of EuS/Co Multilayers on KCl and BaF2 Substrates

    M. Szot, L. Kowalczyk, K. Gas, V. Domukhovski, W. Knoff, V. V. Volobuev, A. Yu. Sipatov, A. G. Fedorov, T. Story

    ACTA PHYSICA POLONICA A　114　(5)　1397-1402　2008/11

    DOI： 10.12693/APhysPolA.114.1397 　

    ISSN： 0587-4246

    eISSN： 1898-794X

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