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- Title
Inhomogeneous State of the BiTe Doped with Manganese.
- Authors
Sakhin, V.; Kukovitskii, E.; Garif'yanov, N.; Talanov, Yu.; Teitel'baum, G.
- Abstract
Basing on electron spin resonance (ESR) data for BiTe doped by Mn ions we argue that this compound can be inhomogeneous and consists of two components with the different structures. Its main phase Bi Mn Te is intertwined with the microscopical inclusions of MnBi phase. The integral volume of these intermetal clusters is less than 1 % but nevertheless they exert the serious impact on the dynamic magnetic properties of the entire system. These inclusions are ferromagnetic with the Curie temperature of 630 K, while the main bulk phase Bi Mn Te has x= 0.05 orders at T = 10 K (qualitatively this twophase picture is valid not only for this given x). Below this temperature two ferromagnetic phases coexist. Since the integral spontaneous polarization in MnBi phase is averaged out due to its random orientations in different clusters the time-reversal symmetry of Bi Te doped by Mn ions is violated only at the low-temperature ferromagnetic transition.
- Subjects
ELECTRON paramagnetic resonance; FERROMAGNETIC materials; TOPOLOGICAL insulators; MAGNETIC ions; POLARIZATION (Electrochemistry)
- Publication
Journal of Superconductivity & Novel Magnetism, 2017, Vol 30, Issue 1, p63
- ISSN
1557-1939
- Publication type
Article
- DOI
10.1007/s10948-016-3801-y