A5103074869- Topological Materials and Phenomena
- Theoretical and Computational Physics
- Magnetic properties of thin films
- 2D Materials and Applications
- Rare-earth and actinide compounds
- Laser-Matter Interactions and Applications
- Laser Design and Applications
- Graphene research and applications
- Advanced Physical and Chemical Molecular Interactions
- Advanced Fiber Laser Technologies
- Cold Atom Physics and Bose-Einstein Condensates
- Advanced Condensed Matter Physics
- Magnetic and transport properties of perovskites and related materials
Moscow Institute of Physics and Technology
2024
Lomonosov Moscow State University
2024
Elettra-Sincrotrone Trieste S.C.p.A.
2024
Institute of Physics
2024
ALBA Synchrotron (Spain)
2024
Abstract The ability to finely tune the properties of magnetic topological insulators (TIs) is crucial for quantum electronics. We studied solid solutions with a general formula Ge x Mn 1-x Bi 2 Te 4 between two isostructural Z TIs, MnBi and nonmagnetic GeBi invariants 1;000 1;001, respectively. observed linear x-dependent properties, composition-independent pairwise exchange interactions, phase transitions (TPTs) topologically nontrivial phases semimetal state. TPTs are driven purely by...
Received 11 September 2015DOI:https://doi.org/10.1103/PhysRevE.92.039903©2015 American Physical Society
Meeting of non-trivial topology with magnetism results in novel phases matter, such as Quantum Anomalous Hall (QAH) or axion insulator phases. Even more exotic states high and tunable Chern numbers are expected at the contact intrinsic magnetic topological insulators (IMTIs) 2D (TIs).Here we synthesize a heterostructures composed TI 3D IMTIs, specifically bismuth bilayer on top MnBi$_2$Te$_4$-family compounds study their electronic properties by means angle-resolved photoelectron...
Magnetic topological materials (MTIs) including MnBi$_2$Te$_4$ are of scientific interest due to the possibility reveal interplay between and magnetic orders. For these preparation issues still challenging. In our paper we report new synthetic protocol using two-phase source in Bridgman-like growth procedure. We applied it grow a number TIs GeAs$_2$Te$_4$ structural type individual compounds MnBi$_2$Te$_4$, MnSb$_2$Te$_4$, GeBi$_2$Te$_4$, SnBi$_2$Te$_4$, PbBi$_2$Te$_4$ several mixed crystals...
The presence of Rashba-like surface states (RSS) in the electronic structure topological insulators (TIs) has been a longstanding topic interest due to their significant impact on and spin structures. In this study, we investigate interaction between (TSS RSS) Mn$_{1-x}$Sn$_x$Bi$_2$Te$_4$ systems using density functional theory (DFT) calculations high-resolution ARPES. Our findings reveal that increasing Sn concentration shifts RSS downward energy, enhancing influence near Fermi level. ARPES...
For quantum electronics, the possibility to finely tune properties of magnetic topological insulators (TIs) is a key issue. We studied solid solutions between two isostructural Z$_2$ TIs, MnBi$_2$Te$_4$ and nonmagnetic GeBi$_2$Te$_4$, with invariants 1;000 1;001, respectively. high-quality, large mixed crystals Ge$_x$Mn$_{1-x}$Bi$_2$Te$_4$, we observed linear x-dependent properties, composition-independent pairwise exchange interactions along an easy magnetization axis. The bulk band gap...