Low-energy excitations and thermodynamical properties of the quantum (5/2,1/2,1/2) ferrimagnetic chain / Ovchinnikov AS,Bostrem IG,Sinitsyn VE,Boyarchenkov AS,Baranov NV,Inoue K // JOURNAL OF PHYSICS-CONDENSED MATTER. - 2002. - V. 14, l. 34. - P. 8067-8078.

ISSN/EISSN:

0953-8984 / 1361-648X

Type:

Article

Abstract:

The low-energy structures of the quantum ferrimagnetic Heisenberg chain consisting of (5/2,1/2,1/2) trimers are investigated theoretically. The results of the linear spin-wave theory are compared with those from the numerical exact diagonalization calculation and the matrix product method for the lowest optical mode. The temperature behaviour of thermodynamical properties such as magnetic susceptibility, specific heat and entropy are analysed in the framework of the modified spin-wave theory. The results of the calculations are used to explain the experimental data obtained for the molecule-based heterospin magnets {[}Mn(hfac)(2)BNOR] (R = H, R Cl, Br) with one-dimensional chain structure.

Author keywords:

DENSITY-MATRIX RENORMALIZATION; LOW-TEMPERATURE PROPERTIES; SPIN CHAINS; GROUND-STATE; ANTIFERROMAGNETS; COMPLEXES; RADICALS

DOI:

10.1088/0953-8984/14/34/325

Web of Science ID:

ISI:000178051800028

Соавторы в МНС:

Другие поля

Поле	Значение
Month	SEP 2
Publisher	IOP PUBLISHING LTD
Address	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Language	English
Article-Number	PII S0953-8984(02)38060-3
EISSN	1361-648X
Keywords-Plus	DENSITY-MATRIX RENORMALIZATION; LOW-TEMPERATURE PROPERTIES; SPIN CHAINS; GROUND-STATE; ANTIFERROMAGNETS; COMPLEXES; RADICALS
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	22
Usage-Count-Since-2013	8
Journal-ISO	J. Phys.-Condes. Matter
Doc-Delivery-Number	594LN