Double specific heat anomaly of the superconducting state of CePt3Si

CePt3Si is the first heavy fermion superconductor without a centre of symmetry. Below an antiferromagnetic transition at 2.25 K superconductivity occurs at TC = 0.73 K. The non-centrosymmetric structure is expected to have significant impact on the nature of the superconducting order parameter. This...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Condensed matter 2005-03, Vol.17 (12), p.L121-L124
Main Authors: Scheidt, E-W, Mayr, F, Eickerling, G, Rogl, P, Bauer, E
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Heavy-fermion superconductors
Physics
Superconducting materials (excluding high-tc compounds)
Superconductivity
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:CePt3Si is the first heavy fermion superconductor without a centre of symmetry. Below an antiferromagnetic transition at 2.25 K superconductivity occurs at TC = 0.73 K. The non-centrosymmetric structure is expected to have significant impact on the nature of the superconducting order parameter. This may be a reason for the unusual shape of the superconducting transition observed in the specific heat. We present specific heat data which clearly show the existence of a double anomaly in the superconducting state, signalling two consecutive phase transitions, as in the uranium based heavy fermion superconductors U1-xThxBe13 and UPt3.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/17/12/L03