Journal Article

FZJ-2015-03008

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png First Order Metamagnetic Transition in Ho$_{2 }$Ti$_{2 }$O$_{7}$ Observed by Vibrating Coil Magnetometry at Milli-Kelvin Temperatures

Krey, C. (Corresponding Author) ; Legl, S. ; Dunsiger, S. R. ; Meven, M.FZJ* ; Gardner, J. S. ; Roper, J. M. ; Pfleiderer, C.

2012
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/8580  doi:10.1103/PhysRevLett.108.257204

Abstract: We report vibrating coil magnetometry of the spin-ice system Ho2Ti2O7 down to 0:04 K for magnetic fields up to 5 T applied parallel to the [111] axis. History-dependent behavior emerges below T0 0:6 K near zero magnetic field, in common with other spin-ice compounds. In large magnetic fields, we observe a magnetization plateau followed by a hysteretic metamagnetic transition. The temperature dependence of the coercive fields as well as the susceptibility calculated from the magnetization identify the metamagnetic transition as a line of first order transitions terminating in a critical end point at Tm' 0:37 K, Bm’ 1:5 T. The metamagnetic transition in Ho2Ti2O7 is strongly reminiscent of that observed in Dy2Ti2O7, suggestive of a general feature of the spin ices.

Keyword(s): Basic research (1st) ; Others (1st) ; Information Technology and Functional Materials (1st) ; Condensed Matter Physics (2nd) ; Magnetism (2nd) ; Crystallography (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS (München) ; Jülich Centre for Neutron Science JCNS (München) ; JCNS-FRM-II)
2. Streumethoden (JCNS-2)

Research Program(s):

1. 54G - JCNS (POF2-54G24) (POF2-54G24)

Experiment(s):

1. HEiDi: Single crystal diffractometer on hot source (SR9b)

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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