The ground-state properties of the one-dimensional heterospin chain (5/2,1/2,1/2) with alternating exchange / Ovchinnikov AS,Bostrem IG,Sinitsyn VE,Baranov NV,Inoue K // JOURNAL OF PHYSICS-CONDENSED MATTER. - 2001. - V. 13, l. 22. - P. 5221-5229.

ISSN/EISSN:

0953-8984 / нет данных

Type:

Article

Abstract:

The ground-state properties of the ferrimagnetic spin chain consisting of (5/2, 1/2, 1/2) trimers with antiferromagnetic exchange between the 5/2 and 1/2 spins and ferromagnetic exchange between the 1/2 and 1/2 spins are analysed in the framework of the quantum renormalization group in real space and the matrix product method. The results are compared with a spin-wave calculation for a spin chain with two types of spin, (5/2, 1). The groundstate energy, the average magnetizations and the correlation length are found as functions of the ratio between the antiferromagnetic and ferromagnetic exchange. The analysis shows that the trimer spin chain is characterized by strong quantum fluctuations reducing the average magnetizations and possesses an extremely short correlation length.

Author keywords:

LOW-TEMPERATURE PROPERTIES

DOI:

10.1088/0953-8984/13/22/315

Web of Science ID:

ISI:000169305400027

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUN 4
Publisher	IOP PUBLISHING LTD
Address	DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Language	English
Keywords-Plus	LOW-TEMPERATURE PROPERTIES
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Baranov, Nikolai/J-5042-2013 INOUE, Katsuya/E-9221-2010 Ovchinnikov, Alexander/B-9906-2009
ORCID-Numbers	Baranov, Nikolai/0000-0002-9720-5314 Ovchinnikov, Alexander/0000-0002-1173-9260
Number-of-Cited-References	11
Usage-Count-Since-2013	4
Journal-ISO	J. Phys.-Condes. Matter
Doc-Delivery-Number	442VJ