Noncollinear ferrimagnetic ground state in Ni(NO3)(2) / Volkova O. S.,Mazurenko V. V.,Solovyev I. V.,Deeva E. B.,Morozov I. V.,Lin J. -Y.,Wen C. K.,Chen J. M.,Abdel-Hafiez M.,Vasiliev A. N. // PHYSICAL REVIEW B. - 2014. - V. 90, l. 13.

ISSN/EISSN:

1098-0121 / 1550-235X

Type:

Article

Abstract:

Both spin-liquid and magnetically ordered phases of both half-integer and integer low-spin quantum magnets are of interest, since the magnetic structures found in the latter case usually have no classical counterparts. Such a magnetic structure was found in a combined experimental and theoretical study of the integer spin system Ni(NO3)(2). Our thermodynamic measurements have revealed a magnetically ordered phase with small spontaneous magnetization at T-C = 5.5 K. The magnetization saturation of about 2 mu(B) at low temperatures corresponds to the high-spin state (S = 1) of Ni2+ ions evidenced in L-2,L-3 edges in x-ray absorption spectroscopy spectra. We show that a consistent description of the available data is possible within a noncollinear umbrella-type ferrimagnetic ground state model for which both intra-and interlayer magnetic interactions should be antiferromagnetic. Such a scenario is suggested by the first-principles and model calculations.

Author keywords:

KAGOME LATTICE; MAGNETIC SUSCEPTIBILITIES; LOW-TEMPERATURE; BAND THEORY; ANTIFERROMAGNET; NITRATES; TRANSITION; SPECTROSCOPY; EXCITATIONS; NIO

DOI:

10.1103/PhysRevB.90.134407

Web of Science ID:

ISI:000344018900001

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT 10
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	134407
EISSN	1550-235X
Keywords-Plus	KAGOME LATTICE; MAGNETIC SUSCEPTIBILITIES; LOW-TEMPERATURE; BAND THEORY; ANTIFERROMAGNET; NITRATES; TRANSITION; SPECTROSCOPY; EXCITATIONS; NIO
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Morozov, Igor/C-4329-2011 Solovyev, Igor/B-1320-2010 Mazurenko, Vladimir/P-9241-2017 Vasiliev, Alexander/A-7562-2008 Volkova, Olga/A-4072-2008
ORCID-Numbers	Solovyev, Igor/0000-0002-2010-9877 Vasiliev, Alexander/0000-0003-3558-6761 Volkova, Olga/0000-0001-7853-4801
Funding-Acknowledgement	Ministry of Education and Science of the Russian Federation within the framework of the Increase Competitiveness Program of the National University of Science and Technology ``MISiS{''} {[}K2-2014-036]; Russian Foundation for Basic Research {[}13-02-00174, 14-02-00111, 14-02-92002]; {[}MK-7138.2013.2]; {[}MK-5565.2013.2]
Funding-Text	We thank Z. Hu and Y. D. Chuang for discussions on XAS issues. This work was supported in part by the Ministry of Education and Science of the Russian Federation within the framework of the Increase Competitiveness Program of the National University of Science and Technology ``MISiS{''} (Contract No. K2-2014-036), by the Russian Foundation for Basic Research (Grants No. 13-02-00174, 14-02-00111, and 14-02-92002), and by the President of Russia Grants No. MK-7138.2013.2 and MK-5565.2013.2.
Number-of-Cited-References	45
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	19
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	AS1DO