BaDElPh Highlights
- BaDElPh Highlights
- Ferrimagnetism in graphene
- Anomalies at the DP in graphene
- CDW & Kondo effect in a Dirac semimetal
- QWS on bilayer graphene
- Flat band in graphene
- Antiferromagnetic TI
- MoS2 on Gr/Ir(111)
- EAL of low-energy electrons in solids
- SC in few-monolayer MgB2
- SOC induced gap in graphene
- Li-doped black phosphorous
- Rashba coupling amplification in BaNiS2
- High-quality graphene
- EPC and SC in graphene
- Surface-enhanced CDW in UD Bi(2201)
- Origin of electron accumulation in In2O3
- Impurity state in H-Graphene
- Gap and orbital character in Ba(FeCo)2As2
- Surface-umklapp at an organic-metal interface
- Quasiparticles at the Mott transition in V2O3
- All Pages
Page 1 of 21
Tuning the topological and magnetic properties of TIs
|
|
Using experimental and theoretical methods, we studied solid solutions with a general formula GexMn1-xBi2Te4 between two isostructural TIs, magnetic MnBi2Te4 and nonmagnetic GeBi2Te4. We observed linear x-dependent magnetic properties, composition-independent pairwise exchange interactions, and topological phase transitions (TPTs) between topologically nontrivial phases and the semimetal state. The TPTs are driven purely by the variation of orbital contributions. The gapless state observed at x = 0.42 closely resembles a Dirac semimetal above the Néel temperature and shows a magnetic gap below, which is clearly visible in raw photoemission data. The observed behavior |
demonstrates an ability to precisely control topological and magnetic properties of TIs. Retrieve article Magnetic Dirac semimetal state of (Mn,Ge)Bi2Te4 A.S. Frolov, D.Yu. Usachov, A.V. Tarasov, A.V. Fedorov, K.A. Bokai, I. Klimovskikh, V.S. Stolyarov, A.I. Sergeev, A.N. Lavrov, V.A. Golyashov, O.E. Tereshchenko, G. Di Santo, L. Petaccia, O.J. Clark, J. Sanchez-Barriga, L.V. Yashina, Commun. Phys. 7, 180 (2024). doi: 10.1038/s42005-024-01675-w |
- Prev
- Next >>
Last Updated on Monday, 30 December 2024 19:18
