Singlet-triplet model of cuprate magnetism / Moskvin AS,Ovchinnikov AS // PHYSICS OF THE SOLID STATE. - 1998. - V. 40, l. 10. - P. 1618-1624.

ISSN/EISSN:

1063-7834 / нет данных

Type:

Article

Abstract:

A model for describing the spin subsystem of cuprates within a model of polar singlet-triplet Jahn-Teller centers is proposed. In this model spin ordering is described by two vector order parameters S (the total spin of a CuO4 cluster) and V (the operator of the change in spin multiplicity per cluster). It is shown within a modified mean-field approximation that the formation of a noncollinear magnetic structure characterized by an antiferromagnetic wave vector, which, however, has a nontrivial temperature dependence of the order parameters, is possible along with the formation of ordinary collinear structures of the (anti)ferromagnetic type. The temperature dependences of the order parameters and the principal equilibrium thermodynamic characteristics, viz., the static susceptibility and the specific heat, are obtained. (C) 1998 American Institute of Physics. {[}S1063-7834(98)00410-9].

Author keywords:

NEUTRON-SCATTERING; FLUCTUATIONS

DOI:

10.1134/1.1130620

Web of Science ID:

ISI:000076823400004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	AMER INST PHYSICS
Address	CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 USA
Language	English
Keywords-Plus	NEUTRON-SCATTERING; FLUCTUATIONS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Ovchinnikov, Alexander/B-9906-2009
ORCID-Numbers	Ovchinnikov, Alexander/0000-0002-1173-9260
Number-of-Cited-References	20
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	2
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	135VM