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Agnieszka Wolos
Researcher at University of Warsaw
Publications - 26
Citations - 499
Agnieszka Wolos is an academic researcher from University of Warsaw. The author has contributed to research in topics: Topological insulator & Electron paramagnetic resonance. The author has an hindex of 10, co-authored 20 publications receiving 344 citations. Previous affiliations of Agnieszka Wolos include Polish Academy of Sciences.
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Journal ArticleDOI
Observation of high-temperature quantum anomalous Hall regime in intrinsic MnBi$_2$Te$_4$/Bi$_2$Te$_3$ superlattice
Haiming Deng,Zhiyi Chen,Agnieszka Wolos,Marcin Konczykowski,Kamil Sobczak,Joanna Sitnicka,I. V. Fedorchenko,Jolanta Borysiuk,Tristan Heider,Lukasz Plucinski,Kyungwha Park,Alexandru B. Georgescu,Jennifer Cano,Lia Krusin-Elbaum +13 more
TL;DR: In this paper, the anomalous Hall effect in the Berry-curvature-driven regime (Q-window) at above-Kelvin temperatures in the magnetic topological bulk crystals was investigated.
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Optical and magnetic properties of Mn in bulk GaN
Agnieszka Wolos,M. Palczewska,M. Zajac,J. Gosk,J. Gosk,Maria Kaminska,Andrzej Twardowski,Michal Bockowski,Izabella Grzegory,S. Porowski +9 more
TL;DR: In this paper, the authors reported results of electron paramagnetic resonance, magnetization, and optical absorption studies of bulk GaN crystals doped with Mn and, for some samples, codoped with Mg acceptor.
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Neutral Mn acceptor in bulk GaN in high magnetic fields
Agnieszka Wolos,Andrzej Wysmołek,Maria Kaminska,Andrzej Twardowski,M. Boćkowski,Izabella Grzegory,S. Porowski,Marek Potemski +7 more
TL;DR: In this article, the authors present magneto-optical studies of intra-center absorption band related to neutral Mn acceptor in GaN bulk crystals, and interpret the behavior of the zero-phonon line in magnetic field based on crystal-field model for the ion in trigonal crystal field, undergoing Jahn-Teller distortion and spin-orbit coupling.
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Be-doped low-temperature-grown GaAs material for optoelectronic switches
Arūnas Krotkus,K. Bertulis,Maria Kaminska,Krzysztof P. Korona,Agnieszka Wolos,Jörg Siegert,Saulius Marcinkevicius,Jean-François Roux,Jean-Louis Coutaz +8 more
TL;DR: In this article, structural, electrical and recombination properties of be-doped low-temperature MBE grown (LTG) GaAs have been investigated by using a numbcr of different experimental techniques.
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Magnetic anisotropy of bulk GaN:Mn single crystals codoped with Mg acceptors
J. Gosk,M. Zajac,Agnieszka Wolos,Maria Kaminska,Andrzej Twardowski,Izabella Grzegory,Michal Bockowski,S. Porowski +7 more
TL;DR: Magnetization measurements of the wurtzite highly resistive bulk crystals of GaN:Mn, codoped with Mg, are presented in this paper, where strong anisotropy of magnetization at low temperatures s 2 −1 0 Kd was observed.