Neutron-Diffraction Studies of the Antiferromagnetic–Ferromagnetic Transition in Anion-Deficient Cobaltites | Sciact - CRIS-система Института катализа

Neutron-Diffraction Studies of the Antiferromagnetic–Ferromagnetic Transition in Anion-Deficient Cobaltites Научная публикация

Журнал

Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques
ISSN: 1027-4510 , E-ISSN: 1819-7094

Вых. Данные

Год: 2016, Том: 10, Номер: 6, Страницы: 1133-1135 Страниц : 3 DOI: 10.1134/S102745101605061X

Ключевые слова

magnetic structure, neutron diffraction, pressure

Авторы

Sikolenko V.V. ^1,6 , Efimov V.V. ¹ , Efimova E.A. ¹ , Tiutiunnikov S.I. ¹ , Selutin A.G. ² , Karpinsky D.V. ³ , Keller L. ⁴ , Ritter C. ⁵ , Nazarenko M.A. ⁷ , Troyanchuk I.O. ³

Организации

1	Joint Institute for Nuclear Research, Dubna, Moscow region, 141980 Russia
2	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
3	Scientific and Practical Materials Research Center, National Academy of Sciences of Belarus, Minsk, 220072 Belarus
4	Paul Scherrer Institute, PSI, 5232 Villigen, Switzerland
5	Institut Laue-Langevin, BP 156-38042, Grenoble, France
6	Immanuel Kant Baltic Federal University, REC “Functional Nanomaterials”, Kaliningrad, 236016 Russia
7	Moscow State Technical University of Radio Engineering, Electronics and Automation, Moscow, 119454 Russia

Информация о финансировании (1)

Российский фонд фундаментальных исследований

15-32-50378

Anion-deficient La0.5Ba0.5CoO2.8 and Y0.25Ca0.25Sr0.5CoO2.62 cobaltites are studied under pressures up to 6.5 GPa in the temperature range of 5−300 K by neutron powder diffraction. Under ambient pressure both compounds are antiferromagnetic with TN = 250 K. The applied pressure induces in the first compound a gradual transition from the antiferromagnetic to ferromagnetic state through a mixed magnetic state, whereas the second compound remains antiferromagnetic in the whole pressure range. We suggest that the magnetic ground state depends on the unit-cell volume and the magnetic transition is associated with the transition of cobalt ions from the mixed high-spin/low-spin state to the intermediate-spin/low-spin state.

Sikolenko V.V. , Efimov V.V. , Efimova E.A. , Tiutiunnikov S.I. , Selutin A.G. , Karpinsky D.V. , Keller L. , Ritter C. , Nazarenko M.A. , Troyanchuk I.O.
Neutron-Diffraction Studies of the Antiferromagnetic–Ferromagnetic Transition in Anion-Deficient Cobaltites
Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques. 2016. V.10. N6. P.1133-1135. DOI: 10.1134/S102745101605061X WOS Scopus РИНЦ CAPlus OpenAlex

Сиколенко В.В. , Ефимов В.В. , Ефимова Е.А. , Тютюнников С.И. , Селютин А.Г. , Карпинский Д.В. , Keller L. , Ritter C. , Назаренко М.А. , Троянчук И.О.
Нейтронографические исследования перехода антиферромагнит–ферромагнит в кобальтитах с дефицитом анионов
Поверхность. Рентгеновские, синхротронные и нейтронные исследования. 2016. №11. С.12-14. DOI: 10.7868/S0207352816110184 РИНЦ OpenAlex

Поступила в редакцию:	20 февр. 2016 г.
Опубликована в печати:	1 нояб. 2016 г.
Опубликована online:	6 дек. 2016 г.

Web of science:	WOS:000391039700003
Scopus:	2-s2.0-85002398117
РИНЦ:	28012054
Chemical Abstracts:	2016:2005482
OpenAlex:	W2559950233

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