Superconductivity in Y(Ni<sub>1-x</sub>Pt<sub>x</sub>)<sub>2</sub>B<sub>2</sub>C compounds
Fuming Yang; N Tang; Jianli Wang; Weidong Qin; Zheng-Xiao Li; Jianlin Luo; Fuming Yang; Inst. of Phys., Acad. Sinica, Beijing, China; N Tang; Inst. of Phys., Acad. Sinica, Beijing, China; Jianli Wang; Inst. of Phys., Acad. Sinica, Beijing, China; Weidong Qin; Inst. of Phys., Acad. Sinica, Beijing, China; Zheng-Xiao Li; Inst. of Phys., Acad. Sinica, Beijing, China; Jianlin Luo; Inst. of Phys., Acad. Sinica, Beijing, China
Журнал:
Journal of Physics: Condensed Matter
Дата:
1995-03-13
Аннотация:
Superconductivity for the Y(Ni<sub>1-x</sub>Pt<sub>x</sub>)<sub>2</sub>B<sub>2</sub>C compounds is reported. X-ray diffraction patterns of the Y(Ni<sub>1-x</sub>Pt<sub>x</sub>)<sub>2</sub>B<sub>2</sub>C compounds were indexed on the basis of the modified ThCr<sub>2</sub>Si<sub>2</sub>-type structure. With increasing Pt concentration the lattice parameters a and c and unit-cell volume v increase linearly. The expansion of unit-cell volume for YPt<sub>2</sub>B<sub>2</sub>C is about 18% compared with that for YNi<sub>2</sub>B<sub>2</sub>C, whereas the superconducting transition temperature decreases monotonically from 15.2 K for YNi<sub>2</sub>B<sub>2</sub>C to 10 K for YPt<sub>2</sub>B<sub>2</sub>C.
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