Suppression of the Shastry-Sutherland phase in Ce\(_{2}\)Pd\(_{2}\)Sn at a field induced critical point

The magnetic phase diagram of Ce\(_2\)Pd\(_2\)Sn is investigated through the field dependence of thermal, transport and magnetic measurements performed at low temperature. The upper transition, \(T_M=4.8\) K is practically not affected by magnetic field up to B=1 T, whereas the lower one \(T_C(B)\)...

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Bibliographic Details
Published in:arXiv.org 2010-01
Main Authors: Sereni, J G, M Gomez Berisso, Schmerber, G, Braghta, A, Kappler, J P
Format: Article
Language:English
Subjects:
Critical point
Dependence
Magnetic measurement
Phase diagrams
Online Access:Get full text
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Summary:The magnetic phase diagram of Ce\(_2\)Pd\(_2\)Sn is investigated through the field dependence of thermal, transport and magnetic measurements performed at low temperature. The upper transition, \(T_M=4.8\) K is practically not affected by magnetic field up to B=1 T, whereas the lower one \(T_C(B)\) rapidly increases from 2.1 K joining \(T_M\) in a critical point at \(T_{cr}=(4.2\pm 0.3\))K for \(B_{cr}=(0.12\pm 0.03)\) T. At that point the intermediate phase, previously described as an unstable Shastry-Sutherland phase, is suppressed. A detailed analysis around the critical point reveals a structure in the maximum of the \(\partial M/\partial B(B)\) derivative which could be related to the formation of a novel phase in that critical region.
ISSN:2331-8422
DOI:10.48550/arxiv.1001.1119