Niesen, S. K., Breunig, O., Salm, S., Seher, M., Valldor, M., Warzanowski, P. and Lorenz, T. (2014). Substitution effects on the temperature versus magnetic field phase diagrams of the quasi-one-dimensional effective Ising spin-1/2 chain system BaCo2V2O8. Phys. Rev. B, 90 (10). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

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Abstract

BaCo2V2O8 is a quasi-one-dimensional antiferromagnetic spin-1/2 chain system with pronounced Ising anisotropy of the magnetic exchange. Due to finite interchain interactions, long-range antiferromagnetic order develops below T-N similar or equal to 5.5 K, which is accompanied by a structural distortion in order to lift magnetic frustration effects. The corresponding temperature versus magnetic-field phase diagram is highly anisotropic with respect to the magnetic-field direction and various details are still under vivid discussion. Here, we report the influence of several substitutions on the magnetic properties and the phase diagrams of BaCo2V2O8. We investigate the substitution series Ba1-xSrxCo2V2O8 over the full range 0 <= x <= 1 as well as the influence of a partial substitution of the magnetic Co2+ by small amounts of other magnetic transition metals or by nonmagnetic magnesium. In all cases, the phase diagrams were obtained on single crystals from magnetization data and/or high-resolution studies of the thermal expansion and magnetostriction.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Niesen, S. K.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Breunig, O.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Salm, S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Seher, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Valldor, M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Warzanowski, P.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lorenz, T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-428502
DOI: 10.1103/PhysRevB.90.104419
Journal or Publication Title: Phys. Rev. B
Volume: 90
Number: 10
Date: 2014
Publisher: AMER PHYSICAL SOC
Place of Publication: COLLEGE PK
ISSN: 2469-9969
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SOLITON LATTICE; TRANSITIONS; SRCO2V2O8; CUGEO3Multiple languages
Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed MatterMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/42850

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