Study of the effect of Ni substitution and external pressure in Li₂Pd₃B superconductor

详细信息    查看全文

• 作者：Awadhesh Mani ; T. Geetha Kumary ; A. Bharathi ; S. Kalavathi ; V. Sankara Sastry and Y. Hariharan
• 关键词：Superconductivity ; Effect of high pressure ; Effect of substitution ; Li₂Pd₃B
• 刊名：Physica C
• 出版年：2005
• 出版时间：2005
• 年：2005
• 卷：433
• 期：1-2
• 页码：139-145
• 全文大小：199 K

文摘

Samples belonging to the series Li₂(Pd_1−xNi_x)₃B for x = 0–0.2 have been synthesized. Phase purity of the samples is established using X-ray diffraction. The lattice parameter decreases with increasing Ni substitution. The superconducting transition temperature, T_c, exhibits a decrease with increasing Ni concentration. On the application of external pressure up to 3 GPa, the onset T_c decreases monotonically at a rate d ln T_c/dP of 0.064 GPa⁻¹. The results are seen to be consistent with the behaviour expected of conventional superconductors.