|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Spin glass state in iron-doped Bi2Te3 topological insulator доклад на конференции
- Авторы: Koroleva L.I., Morozov A.S., Szymczak R.A., Fedorchenko I.V., Marenkin S.F.
- Международная Конференция (Симпозиум) : V Euro-Asian Symposium “Trends in MAGnetism”: Nanomagnetism (EASTMAG-2013)
- Даты проведения конференции: 2013
- Тип доклада: не указан
- Докладчик: не указан
- Место проведения: Russky Island, Vladivostok, Russia, Russia
-
Аннотация доклада:
The study of dependence of magnetization from temperature T and magnetic field in the Bi2Fe0.128Te2.844Se0.145 single-crystal showed that it have spinglass-like state with freezing temperature T_f - 40 K. It's electric resistivity up to 100 K is ~ 10^3 Ohm.cm and decreases with the temperature increase. At T > 120 K electric resistivity ~ 10^(-2)Ohm.cm and magnetization is four orders smaller than in spinglass-like state. It can be assumed from these results that this sample is topological insulator at T > 120 K and at small temperature, where it is spinglass-like, the breaking of the time reversal symmetry offers.
- Добавил в систему: Королёва Людмила Ивановна