Growth and characterization of the dynamical axion insulator candidate Mn2 Bi2 Te5 with intrinsic antiferromagnetism

Growth and characterization of the dynamical axion insulator candidate Mn2 Bi2 Te5 with intrinsic antiferromagnetism

Intrinsic antiferromagnetic Mn2 Bi2 Te5 crystals, a candidate of dynamical axion insulator proposed theoretically recently, were successfully grown by the self-flux method. The crystal structure and chemical composition of Mn2 Bi2 Te5 crystals were experimentally substantiated. Temperature-dependent...

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Veröffentlicht in:Physical review. B 2021-08, Vol.104 (5), p.1
Hauptverfasser: Cao, Lin, Han, Shuang, Lv, Yang-Yang, Wang, Dinghui, Luo, Ye-Cheng, Zhang, Yan-Yan, Yao, Shu-Hua, Zhou, Jian, Chen, Y B, Zhang, Haijun, Chen, Yan-Feng
Format: Artikel
Sprache:eng
Schlagworte:
Antiferromagnetism
Chemical composition
Crystal structure
Electromagnetism
Ferromagnetism
Hall effect
Hysteresis loops
Magnetic measurement
Magnetism
Mean field theory
Phase transitions
Spin structure
Temperature dependence
Topology
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Zusammenfassung:Intrinsic antiferromagnetic Mn2 Bi2 Te5 crystals, a candidate of dynamical axion insulator proposed theoretically recently, were successfully grown by the self-flux method. The crystal structure and chemical composition of Mn2 Bi2 Te5 crystals were experimentally substantiated. Temperature-dependent resistivity of Mn2 Bi2 Te5 shows a metallic behavior ( d ρ / d T > 0 ) when temperature T > 25 K and a subsequently semiconductorlike feature (dρ/d
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.104.054421