Heavy fermion superconductivity and magnetic order in non-centrosymmetric $CePt_3Si$

Details Heavy fermion superconductivity and magnetic order in non-centrosymmetric $CePt_3Si$ Heavy fermion superconductivity and magnetic order in non-centrosymmetric $CePt_3Si$

2003-08-05

arxiv.org/abs/cond-mat/0308083v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.92.027003

$\rm CePt_3Si$ is a novel heavy fermion superconductor, crystallising in the $\rm CePt_3B$ structure as a tetragonally distorted low symmetry variant of the $\rm AuCu_3$ structure type. $\rm CePt_3Si$ exhibits antiferromagnetic order at $T_N \approx 2.2$ K and enters into a heavy fermion superconducting state at $T_c \approx 0.75$ K. Large values of $H_{c2}' \approx -8.5$ T/K and $H_{c2}(0) \approx 5$ T refer to heavy quasiparticles forming Cooper pairs. Hitherto, $\rm CePt_3Si$ is the first heavy fermion superconductor without a center of symmetry.

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