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  Exploring high temperature magnetic order in CeTi1-xScxGe

Sereni, J. G., Pedrazzini, P., Berisso, M. G., Chacoma, A., Encina, S., Gruner, T., et al. (2015). Exploring high temperature magnetic order in CeTi1-xScxGe. INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS 2014 (SCES2014), 012005. doi:10.1088/1742-6596/592/1/012005.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0026-C9B2-3 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-4DA6-5
Genre: Journal Article

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 Creators:
Sereni, J. G.1, Author
Pedrazzini, P.1, Author
Berisso, M. Gómez1, Author
Chacoma, A.1, Author
Encina, S.1, Author
Gruner, T.2, Author              
Caroca-Canales, N.2, Author              
Geibel, C.3, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
3Christoph Geibel, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863465              

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 Abstract: We studied the magnetic, transport, and thermodynamic properties of the alloy CeTi1-xScxGe in order to shed some light into the origin of the exceptionally large antiferromagnetic (AFM) ordering temperature T-N = 47K in pure CeScGe. We observed a complex magnetic phase diagram, which present an interesting dichotomy: Despite strong changes in the nature of the ordered state, from ferromagnetic (FM) for x < 0.55 to AFM for x > 0.55, the ordering temperature increases smoothly and continuously from T-C = 7K at x = 0.25 to T-N = 47K at x = 1. Within the AFM regime we observe a metamagnetic transition at a critical field increasing from H = 0 at x approximate to 0.55 to mu(0) (*) H approximate to 6 Tesla at x = 1. Furthermore a second transition appears at T-L <= T-N for x >= 0.65. In contrast to observations in CeRh2Si2 or CeRh3B2, we found no evidence for a strong hybridization of the 4f electrons at large Sc contents. Therefore the exceptionally large T-N of CeScGe could be attributed to the unusually strong RKKY interaction in this type of compounds.

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Language(s): eng - English
 Dates: 20152015-04-14
 Publication Status: Published in print
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Title: INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS 2014 (SCES2014)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 012005 Start / End Page: - Identifier: ISSN: 1742-6588
ISBN: *****************

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Title: Journal of Physics: Conference Series
Source Genre: Journal
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Publ. Info: Bristol : IOP Publishing
Pages: - Volume / Issue: 592 Sequence Number: 12005 Start / End Page: 1 - 6 Identifier: ISSN: 1742-6588
CoNE: /journals/resource/111097776606042