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Antiferromagnetic topological insulating state in Tb0.02Bi1.08Sb0.9Te2S single crystals
- Source :
- Physical Review B; vol 107, iss 12, 125125; 2469-9950
- Publication Year :
- 2023
-
Abstract
- Topological insulators are emerging materials with insulating bulk and symmetry protected nontrivial surface states. One of the most fascinating transport behaviors in a topological insulator is the quantized anomalous Hall insulator, which has been observed in magnetic-topological-insulator-based devices. In this work, we report a successful doping of rare earth element Tb into Bi1.08Sb0.9Te2S topological insulator single crystals, in which the Tb moments are antiferromagnetically ordered below ∼10 K. Benefiting from the in-bulk-gap Fermi level, transport behavior dominant by the topological surface states is observed below ∼150 K. At low temperatures, strong Shubnikov-de Haas oscillations are observed, which exhibit 2D-like behavior. The topological insulator with long range magnetic ordering in rare earth doped Bi1.08Sb0.9Te2S single crystal provides an ideal platform for quantum transport studies and potential applications.
Details
- Database :
- OAIster
- Journal :
- Physical Review B; vol 107, iss 12, 125125; 2469-9950
- Notes :
- application/pdf, Physical Review B vol 107, iss 12, 125125 2469-9950
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1401031485
- Document Type :
- Electronic Resource