|
ИСТИНА |
Войти в систему Регистрация |
Интеллектуальная Система Тематического Исследования НАукометрических данных |
||
Low-Dimensional Magnetism in Namibite Cu(BiO)2VO4OHстатья
- Авторы: Shvanskaya L.V., Bushneva T.D., Ivanova A.G., Pchelkina Z.V., Vasil’chikova T.M., Volokova O.S., Vasil’ev A.N.
- Журнал: Journal of Experimental and Theoretical Physics
- Том: 137
- Номер: 4
- Год издания: 2023
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 520
- Последняя страница: 525
- Аннотация: Abstract—A synthetic analog of rare secondary mineral namibite Cu(BiO)2VO4OH has been obtained by thehydrothermal method. The crystal structure of this compound contains isolated uniform chains of vertexconnected copper–oxygen octahedra. Magnetic susceptibility (χ) and magnetization (M) measurementshave not indicated the long-range order in the temperature interval 2–300 K. Specific heat (Cp) measurements suggest the formation of a spin-liquid state at low temperatures. X-band electron paramagnetic resonance data recorded at low temperatures have demonstrated only a signal from impurities. First-principlescalculations have estimated the exchange interaction in the chains as J = 555 K, whereas exchange interactions between the chains turn out to be one to two orders of magnitude smaller. Thus, namibite represents arare example of an unordered half-integer spin chain.
- Добавил в систему: Шванская Лариса Викторовна