TY - JOUR
T1 - Mixed-state thermodynamics of superconductors with moderately large paramagnetic effects
AU - Adachi, Hiroto
AU - Ichioka, Masanori
AU - Machida, Kazushige
PY - 2005/8
Y1 - 2005/8
N2 - Effects of Pauli paramagnetism on thermodynamic quantities in a vortex state, such as the specific heat C and magnetization M, are studied using the quasiclassical Eilenberger formalism. We demonstrate that with an increase of paramagnetic depairing effect, the sigh of the curvature of the field dependence of C changes from negative to positive, and that the Maki parameter κ2 becomes an increasing function of temperature. Our results provide a natural explanation for the unusual field dependence of C seen in CeCoIn5 in terms of the paramagnetic effect.
AB - Effects of Pauli paramagnetism on thermodynamic quantities in a vortex state, such as the specific heat C and magnetization M, are studied using the quasiclassical Eilenberger formalism. We demonstrate that with an increase of paramagnetic depairing effect, the sigh of the curvature of the field dependence of C changes from negative to positive, and that the Maki parameter κ2 becomes an increasing function of temperature. Our results provide a natural explanation for the unusual field dependence of C seen in CeCoIn5 in terms of the paramagnetic effect.
KW - CeCoIn
KW - Mixed state
KW - Paramagnetic effect
KW - Thermodynamic quantity
UR - http://www.scopus.com/inward/record.url?scp=24644492933&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=24644492933&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.74.2181
DO - 10.1143/JPSJ.74.2181
M3 - Article
AN - SCOPUS:24644492933
SN - 0031-9015
VL - 74
SP - 2181
EP - 2184
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 8
ER -