KFU. Card publication. Structural and magnetic dimers in the spin-gapped system CuTe2O5

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FEDERAL UNIVERSITY

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STRUCTURAL AND MAGNETIC DIMERS IN THE SPIN-GAPPED SYSTEM CUTE2O5

Form of presentation

Articles in international journals and collections

Year of publication

2006

Authors, employees of KFU

Gavrilova Tatyana Pavlovna, author

Eremina Rushana Mikhaylovna, author

Other authors

J. Deisenhofer; A.Pimenov; H. Berger; M. Johnson; P. Lemmens; H. A. Krug von Nidda; A. Loidl; K. S. Lee; M. H. Whangbo

Bibliographic description in the original language

Structural and magnetic dimers in the spin-gapped system CuTe2O5 / J.Deisenhofer, R.M. Eremina, A. Pimenov, T. Gavrilova, H. Berger, M. Johnsson, P. Lemmens, H.-A. Krug von Nidda, A. Loidl, K.-S. Lee and M.-H. Whangbo // Physical Review B. – 2006. – Vol. 74. – pp. 174421-1 - 174421-8.

Annotation

We investigate the magnetic properties of the system CuTe2O5 by susceptibility and electron spin resonance ESR measurements. The anisotropy of the effective g factors and the ESR linewidth indicates that the anticipated structural dimer does not correspond to the singlet-forming magnetic dimer. Moreover, the spin susceptibility of CuTe2O5 can only be described by taking into account interdimer interactions of the same order of magnitude than the intradimer coupling. Analyzing the exchange couplings in the system we identify the strongest magnetic coupling between two Cu ions to be mediated by a super-superexchange interaction via a bridging Te ligand, while the superexchange coupling between the Cu ions of the structural dimer only results in the second strongest coupling.

Keywords

electron spin resonance, superexchange coupling, transition-metal compounds, low-dimensional compounds

The name of the journal

PHYS REV B

URL

http://journals.aps.org/prb/abstract/10.1103/PhysRevB.74.174421

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=92509&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Gavrilova Tatyana Pavlovna	ru_RU
dc.contributor.author	Eremina Rushana Mikhaylovna	ru_RU
dc.date.accessioned	2006-01-01T00:00:00Z	ru_RU
dc.date.available	2006-01-01T00:00:00Z	ru_RU
dc.date.issued	2006	ru_RU
dc.identifier.citation	Structural and magnetic dimers in the spin-gapped system CuTe2O5 / J.Deisenhofer, R.M. Eremina, A. Pimenov, T. Gavrilova, H. Berger, M. Johnsson, P. Lemmens, H.-A. Krug von Nidda, A. Loidl, K.-S. Lee and M.-H. Whangbo // Physical Review B. – 2006. – Vol. 74. – pp. 174421-1 - 174421-8.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=92509&p_lang=2	ru_RU
dc.description.abstract	PHYS REV B	ru_RU
dc.description.abstract	We investigate the magnetic properties of the system CuTe2O5 by susceptibility and electron spin resonance ESR measurements. The anisotropy of the effective g factors and the ESR linewidth indicates that the anticipated structural dimer does not correspond to the singlet-forming magnetic dimer. Moreover, the spin susceptibility of CuTe2O5 can only be described by taking into account interdimer interactions of the same order of magnitude than the intradimer coupling. Analyzing the exchange couplings in the system we identify the strongest magnetic coupling between two Cu ions to be mediated by a super-superexchange interaction via a bridging Te ligand, while the superexchange coupling between the Cu ions of the structural dimer only results in the second strongest coupling.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	electron spin resonance	ru_RU
dc.subject	superexchange coupling	ru_RU
dc.subject	transition-metal compounds	ru_RU
dc.subject	low-dimensional compounds	ru_RU
dc.title	Structural and magnetic dimers in the spin-gapped system CuTe2O5	ru_RU
dc.type	Articles in international journals and collections	ru_RU