Equation of state and electrical resistivity of the heavy fermion superconductor CeCo[In.sub.5] to 51 GPA

Equation of state and electrical resistivity of the heavy fermion superconductor CeCo[In.sub.5] to 51 GPA

We have used X-ray diffraction to study the structural phase of CeCo[In.sub.5] in external pressure. Using high-pressure X-ray diffraction, we find that the crystalline phase is stable in the P4/mmm phase for pressures ≤ 51.2 GPa. From our measured equation of state, we find a bulk modulus given by...

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Bibliographic Details
Published in:The European physical journal. B, Condensed matter physics Vol. 86; no. 7
Main Authors: Brady, N.F, Montgomery, J.M, Tsoi, G, Gebre, T, Weir, S.T, Vohra, Y.K, Hilton, D.J
Format: Journal Article
Language:English
Published: Springer 01-07-2013
Subjects:
Diffraction
Electric properties
Superconductors
X-rays
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Summary:We have used X-ray diffraction to study the structural phase of CeCo[In.sub.5] in external pressure. Using high-pressure X-ray diffraction, we find that the crystalline phase is stable in the P4/mmm phase for pressures ≤ 51.2 GPa. From our measured equation of state, we find a bulk modulus given by [B.sub.0] = 72.8 ± 2.9 GPa and a first pressure derivative of B' = 5.1 ± 0.3. Measurement of the electrical resistivity of CeCo[In.sub.5] to pressures as high as 34.4 GPa shows the existence of a peak in resistivity at [p.sup.*] = 8.2 ± 0.2 GPa.
ISSN:1434-6028
1434-6036
DOI:10.1140/epjb/e2013-40563-7