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Topological phase transitions driven by magnetic phase transitions in FexBi2Te3 (0 < x < 0.1) single crystals
- Source :
- Phys. Rev. Lett. 110, 136601 (2013)
- Publication Year :
- 2013
-
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 behaviours around x ~ 0.025, and it further evolves to a topological insulator with valence-bond glassy behaviours, which spans over the region between x ~ 0.03 up to x ~ 0.1. This phase diagram is verified by measuring magnetization, magnetotransport, and angle-resolved photoemission spectra with theoretical discussions.<br />Comment: To be published in Phys. Rev. Lett
- Subjects :
- Condensed Matter - Strongly Correlated Electrons
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 110, 136601 (2013)
- Publication Type :
- Report
- Accession number :
- edsarx.1302.4806
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.110.136601