http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Specific-Heat Study on the Noncentrosymmetric Heavy-Fermion Superconductor CePt3Si
Tetsuya Takeuchi,Masahiko Tsujino,Takashi Yasuda,Shin Hashimoto,Rikio Settai,Yoshichika Onuki 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.2
Specific-heat measurements were performed on a high-quality single crystal of CePt3Si without inversion symmetry in the tetragonal crystal structure. We observed distinct peaks in the specific-heat C at the superconducting transition temperature Tc =0.46 K and the antiferromagnetic ordering temperature TN =2.25 K, compared to the previous data, indicating an improvement of the sample quality. The temperature dependence of the electronic specific-heat coefficient Ce=T below about 0.3 K is well described y the equation of Ce/T = γs + βsT with γs =34.1 mJ/K2·mol and βs =1290 mJ/K3·mol, evidencing the existence of line nodes in the superconducting energy gap. Furthermore, the electronic specific-heat coefficient γs in the superconducting state indicates a nonlinear magnetic eld dependence s(H) / pH, which also supports the presence of line nodes. Specific-heat measurements were performed on a high-quality single crystal of CePt3Si without inversion symmetry in the tetragonal crystal structure. We observed distinct peaks in the specific-heat C at the superconducting transition temperature Tc =0.46 K and the antiferromagnetic ordering temperature TN =2.25 K, compared to the previous data, indicating an improvement of the sample quality. The temperature dependence of the electronic specific-heat coefficient Ce=T below about 0.3 K is well described y the equation of Ce/T = γs + βsT with γs =34.1 mJ/K2·mol and βs =1290 mJ/K3·mol, evidencing the existence of line nodes in the superconducting energy gap. Furthermore, the electronic specific-heat coefficient γs in the superconducting state indicates a nonlinear magnetic eld dependence s(H) / pH, which also supports the presence of line nodes.