Universität zu Köln

Breunig, O., Garst, M., Rosch, A., Sela, E., Buldmann, B., Becker, P., Bohaty, L., Mueller, R. and Lorenz, T. (2015). Low-temperature ordered phases of the spin-1/2 XXZ chain system Cs2CoCl4. Phys. Rev. B, 91 (2). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

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Abstract

In this study the magnetic order of the spin-1/2 XXZ chain system Cs2CoCl4 in a temperature range from 50 mK to 0.5 K and in applied magnetic fields up to 3.5 T is investigated by high-resolution measurements of the thermal expansion and the specific heat. Applying magnetic fields along a or c suppresses T-N completely at about 2.1 T. In addition, we find an adjacent intermediate phase before the magnetization saturates close to 2.5 T. For magnetic fields applied along b, a surprisingly rich phase diagram arises. Two additional transitions are observed at critical fields mu H-0(SF1) similar or equal to 0.25 T and mu H-0(SF2) similar or equal to 0.7 T, which we propose to arise from a two-stage spin-flop transition.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Breunig, O. UNSPECIFIED UNSPECIFIED UNSPECIFIED Garst, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Rosch, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sela, E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Buldmann, B. UNSPECIFIED UNSPECIFIED UNSPECIFIED Becker, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bohaty, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mueller, R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lorenz, T. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-414287
DOI:	10.1103/PhysRevB.91.024423
Journal or Publication Title:	Phys. Rev. B
Volume:	91
Number:	2
Date:	2015
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9969
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language QUANTUM; TRANSITION; HEAT Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/41428