Crystal Structure, Physical Properties, and Electronic and Magnetic Structure of the Spin S = 5/2 Zigzag Chain Compound Bi2Fe(SeO3)2OCl3

Berdonosov, P.S.; Kuznetsova, E.S.; Dolgikh, V.A.; Sobolev, A.V.; Presniakov, I.A.; Olenev, A.V.; Badiur, R.; Tanusri, S.; Zakharov, K.V.; Zvereva, E.A.; Volkova, O.S.; Vasiliev, A.N.

Авторы: Berdonosov Peter S., Kuznetsova Elena S., Dolgikh Valery A., Sobolev Alexei V., Presniakov Igor A., Olenev Andrei V., Badiur Rahaman, Tanusri Saha-Dasgupta, Zakharov Konstantin V., Zvereva Elena A., Volkova Olga S., Vasiliev Alexander N.
Журнал: Inorganic Chemistry
Том: 53
Номер: 11
Год издания: 2014
Издательство: American Chemical Society
Местоположение издательства: United States
Первая страница: 5830
Последняя страница: 5838
DOI: 10.1021/ic500706f
Аннотация: We report the synthesis and characterization of the new bismuth iron selenite oxochloride Bi2Fe(SeO3)2OCl3. The main feature of its crystal structure is the presence of a reasonably isolated set of spin S = 5/2 zigzag chains of cornersharing FeO6 octahedra decorated with BiO4Cl3, BiO3Cl3, and SeO3 groups. When the temperature is lowered, the magnetization passes through a broad maximum at Tmax ≈ 130 K, which indicates the formation of a magnetic short-range correlation regime. The same behavior is demonstrated by the integral electron spin resonance intensity. The absorption is characterized by the isotropic effective factor g ≈ 2 typical for high-spin Fe3+ ions. The broadening of ESR absorption lines at low temperatures with the critical exponent β = 7/4 is consistent with the divergence of the temperature-dependent correlation length expected for the quasi-one-dimensional antiferromagnetic spin chain upon approaching the long-range ordering transition from above. At TN = 13 K, Bi2 Fe(SeO3)2OCl3 exhibits a transition into an antiferromagnetically ordered state, evidenced in the magnetization, specific heat, and Mössbauer spectra. At T < TN, the 57Fe Mössbauer spectra reveal a low saturated value of the hyperfine field Hhf ≈ 44 T, which indicates a quantum spin reduction of spin-only magnetic moment ΔS/S ≈ 20%. The determination of exchange interaction parameters using firstprinciples calculations validates the quasi-one-dimensional nature of magnetism in this compound.
Добавил в систему: Зверева Елена Алексеевна

	ИСТИНА	Войти в систему Регистрация
	Интеллектуальная Система Тематического Исследования НАукометрических данных
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

Интеллектуальная Система Тематического Исследования НАукометрических данных

Crystal Structure, Physical Properties, and Electronic and Magnetic Structure of the Spin S = 5/2 Zigzag Chain Compound Bi2Fe(SeO3)2OCl3статья

Прикрепленные файлы