Journal Article

FZJ-2015-03506

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Magnetic, magnetocaloric and magnetoresistive properties of cubic Laves phase HoAl $_{2}$ single crystal

Patra, M. ; Majumdar, S. ; Giri, S. ; Xiao, Y.FZJ* ; Chatterji, T.

2014
IOP Publ. Bristol

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Please use a persistent id in citations: http://hdl.handle.net/2128/15626  doi:10.1088/0953-8984/26/4/046004

Abstract: We report the magnetization (M) and magnetoresistance (MR) results of HoAl2 single crystals oriented along the 〈100〉 and 〈110〉 directions. Although HoAl2 has cubic Laves phase structure, a large anisotropy is observed in M and MR below the Curie temperature (TC). A satisfactory correlation between magnetic entropy change (ΔSM) and MR could be established along 〈110〉 and also 〈100〉, except for the temperature (T) region around which spin reorientation takes place. Large inverse magnetocaloric effect is observed at low T, which is associated with the spin reorientation process in the 〈100〉 direction. A theoretical model based on the Landau theory of phase transition can describe the T-variation of −ΔSM for T > TC

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Contributing Institute(s):

1. Streumethoden (JCNS-2)
2. Streumethoden (PGI-4)
3. JARA-FIT (JARA-FIT)

Research Program(s):

1. 422 - Spin-based and quantum information (POF2-422) (POF2-422)
2. 424 - Exploratory materials and phenomena (POF2-424) (POF2-424)
3. 542 - Neutrons (POF2-542) (POF2-542)
4. 544 - In-house Research with PNI (POF2-544) (POF2-544)
5. 54G - JCNS (POF2-54G24) (POF2-54G24)

Appears in the scientific report 2015

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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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