Topological Phase Transitions Driven by Magnetic Phase Transitions in FexBi2Te3 (0 <= x <= 0: 1) Single Crystals
SCIE
SCOPUS
- Title
- Topological Phase Transitions Driven by Magnetic Phase Transitions in FexBi2Te3 (0 <= x <= 0: 1) Single Crystals
- Authors
- Kim, HJ; Kim, KS; Wang, JF; Kulbachinskii, VA; Ogawa, K; Sasaki, M; Ohnishi, A; Kitaura, M; Wu, YY; Li, L; Yamamoto, I; Azuma, J; Kamada, M; Dobrosavljevic, V
- Date Issued
- 2013-03-25
- Publisher
- AMER PHYSICAL SOC
- Abstract
- We propose a phase diagram for FexBi2Te3 (0 <= x <= 0: 1) single crystals, which belong to a class of magnetically bulk-doped topological insulators. The evolution of magnetic correlations from ferromagnetic to antiferromagnetic gives rise to topological phase transitions, where the paramagnetic topological insulator of Bi2Te3 turns into a band insulator with ferromagnetic-cluster glassy behavior around x similar to 0.025, and it further evolves to a topological insulator with valence-bond glassy behavior, which spans over the region from x similar to 0.03 up to x similar to 0.1. This phase diagram is verified by measuring magnetization, magnetotransport, and angle-resolved photoemission spectra with theoretical discussions. DOI: 10.1103/PhysRevLett.110.136601
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/12516
- DOI
- 10.1103/PHYSREVLETT.110.136601
- ISSN
- 0031-9007
- Article Type
- Article
- Citation
- PHYSICAL REVIEW LETTERS, vol. 110, no. 13, 2013-03-25
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