Neutron-Diffraction Studies of the Antiferromagnetic–Ferromagnetic Transition in Anion-Deficient Cobaltites | Sciact - CRIS-system of Boreskov Institute of Catalysis

Neutron-Diffraction Studies of the Antiferromagnetic–Ferromagnetic Transition in Anion-Deficient Cobaltites Full article

Journal

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

Output data

Year: 2016, Volume: 10, Number: 6, Pages: 1133-1135 Pages count : 3 DOI: 10.1134/S102745101605061X

Tags

magnetic structure, neutron diffraction, pressure

Authors

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

Affiliations

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

Funding (1)

Russian Foundation for Basic Research

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 AN 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

Submitted:	Feb 20, 2016
Published print:	Nov 1, 2016
Published online:	Dec 6, 2016

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

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