Magnetization study of mercurocuprate (Hg,Re)Sr2CuO4+δ |
| |
| Authors: | S Balamurugan I K Gopalakrishnan J V Yakhmi P Selvam |
| |
| Affiliation: | (1) Department of Chemistry, Indian Institute of Technology, 400 076 Powai, Mumbai, India;(2) Novel Materials and Structural Chemistry Division, Bhabha Atomic Research Centre, 400 085 Trombay, Mumbai, India |
| |
| Abstract: | The nominal (Hg1−x Re x )Sr2CuO4+δ (x=0.10 and 0.20) samples were synthesized at ∼ 920°C in partial vacuum. The compound with x=0.10 exhibits superconductivity at ∼ 54 K while the composition x=0.20 is non-superconducting down to 5 K. On cooling below 10 K in an applied field of 4 kOe, the former causes a noticeable upturn in the field cooled (FC) magnetization signal. Such a change in magnetic response is also reflected in the magnetic hysteresis loop generated at 9 K. We attribute this effect to a paramagnetic contribution arising from Re in (Hg,Re)-1201 phase. |
| |
| Keywords: | Superconductivity Hg-cuprate magnetization magnetic hysteresis |
| 本文献已被 SpringerLink 等数据库收录！ |
|
