Theory of magnetic resonance as an orbital state probe / Mozhegorov A. A.,Larin A. V.,Nikiforov A. E.,Gontchar L. E.,Efremov A. V. // PHYSICAL REVIEW B. - 2009. - V. 79, l. 5.

ISSN/EISSN:

1098-0121 / нет данных

Type:

Article

Abstract:

It is demonstrated that magnetic resonance in a magnetically ordered state is a sensitive indirect method for the investigation of the orbital ground state. This idea is illustrated for two perovskite titanates: LaTiO(3) and YTiO(3). In contrast to the spin-wave energy spectra, antiferromagnetic resonance spectra in an external magnetic field reveal clear dependence on the orbital state and it can distinguish the state with strong orbital fluctuations from the static orbital order. Our theoretical analysis is based on the model, which explicitly takes into consideration the strong correlation among lattice, orbital, and magnetic degrees of freedom.

Author keywords:

ANISOTROPIC SUPEREXCHANGE INTERACTION; TELLER COUPLING-CONSTANTS; TRANSITION-METAL IONS; WEAK FERROMAGNETISM; MOTT INSULATOR; LATIO3; CRYSTALS; YTIO3; LI

DOI:

10.1103/PhysRevB.79.054418

Web of Science ID:

ISI:000263815400059

Соавторы в МНС:

Другие поля

Поле	Значение
Month	FEB
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	054418
Keywords-Plus	ANISOTROPIC SUPEREXCHANGE INTERACTION; TELLER COUPLING-CONSTANTS; TRANSITION-METAL IONS; WEAK FERROMAGNETISM; MOTT INSULATOR; LATIO3; CRYSTALS; YTIO3; LI
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	alexey.mozhegrov@usu.ru
ResearcherID-Numbers	Nikiforov, Anatoliy/L-4436-2016 Efremov, Andrey/J-3524-2013
ORCID-Numbers	Efremov, Andrey/0000-0001-5713-0437 Gonchar, Liudmila/0000-0002-5872-3565
Funding-Acknowledgement	U. S. Department of Energy {[}DE-FG02-00ER45818]
Funding-Text	This work was supported by the U. S. Department of Energy under Grant No. DE-FG02-00ER45818. We thank J. W. Freeland for stimulating this work and for valuable discussions.
Number-of-Cited-References	44
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	12
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	413TM