两种氧化物超导体在高压下的行为

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两种氧化物超导体在高压下的行为

张进龙, 刘勇, 崔长庚, 杨乾声

文章导航 > 高压物理学报 > 1989 > 3(4): 298-301 .

张进龙, 刘勇, 崔长庚, 杨乾声. 两种氧化物超导体在高压下的行为[J]. 高压物理学报, 1989, 3(4): 298-301 . doi: 10.11858/gywlxb.1989.04.006

引用本文:

张进龙, 刘勇, 崔长庚, 杨乾声. 两种氧化物超导体在高压下的行为[J]. 高压物理学报, 1989, 3(4): 298-301 . doi: 10.11858/gywlxb.1989.04.006

ZHANG Jin-Long, LIU Yong, CUI Chang-Geng, YANG Qian-Sheng. Behavior of Two Oxide Superconductors under High Pressure[J]. Chinese Journal of High Pressure Physics, 1989, 3(4): 298-301 . doi: 10.11858/gywlxb.1989.04.006

Citation:

ZHANG Jin-Long, LIU Yong, CUI Chang-Geng, YANG Qian-Sheng. Behavior of Two Oxide Superconductors under High Pressure[J]. Chinese Journal of High Pressure Physics, 1989, 3(4): 298-301 . doi: 10.11858/gywlxb.1989.04.006

张进龙, 刘勇, 崔长庚, 杨乾声. 两种氧化物超导体在高压下的行为[J]. 高压物理学报, 1989, 3(4): 298-301 . doi: 10.11858/gywlxb.1989.04.006

引用本文:

张进龙, 刘勇, 崔长庚, 杨乾声. 两种氧化物超导体在高压下的行为[J]. 高压物理学报, 1989, 3(4): 298-301 . doi: 10.11858/gywlxb.1989.04.006

ZHANG Jin-Long, LIU Yong, CUI Chang-Geng, YANG Qian-Sheng. Behavior of Two Oxide Superconductors under High Pressure[J]. Chinese Journal of High Pressure Physics, 1989, 3(4): 298-301 . doi: 10.11858/gywlxb.1989.04.006

Citation:

ZHANG Jin-Long, LIU Yong, CUI Chang-Geng, YANG Qian-Sheng. Behavior of Two Oxide Superconductors under High Pressure[J]. Chinese Journal of High Pressure Physics, 1989, 3(4): 298-301 . doi: 10.11858/gywlxb.1989.04.006

两种氧化物超导体在高压下的行为

doi: 10.11858/gywlxb.1989.04.006

中国科学院物理研究所，北京 100080

通讯作者:
张进龙

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出版历程
- 收稿日期: 1989-08-25
- 修回日期: 1989-08-25
- 发布日期: 1989-12-05

Behavior of Two Oxide Superconductors under High Pressure

Institute of Physics, Academia Sinica, Beijing 100080, China

More Information

Corresponding author: ZHANG Jin-Long

摘要: 本文为两个单相超导氧化物体系NdBa2Cu3Ox和(Bi,Pb)2Sr2Ca2Cu3Oy分别做了低温、常温和高温下的高压观察。发现超导转变温度均随压力的增加而提高；在两个体系中都观察到1.0 GPa附近正常态电阻的突增，它们都对应于Tc增加的变缓。对NdBa2Cu3Ox所做的高压DTA显示，从高温四方相到超导正交相的转变为压力提前，表明高压对超导相结构的稳定性产生有利影响。
- 单相超导氧化物 /
- 压力效应 /
- 高压DTA
Abstract: The high-pressure observations at low, normal and high temperature have been performed on two single-phased superconducting oxides, NdBa2Cu3Ox and (Bi,Pb)2Sr2Ca2Cu3Oy, respectively. The superconducting transition temperatures were all raised with increasing pressure. It was noted that the normal state resistances increased abruptly (then down again) near 1.0 GPa in both of the superconductors corresponding to a gentle step of the increasing Tc. The high-pressure DTA for NdBa2Cu3Ox showed that the transition from high temperature tetragonal phase to superconducting orthogonal phase is advanced, which indicates that the high pressure is advantageous to the stability of the superconducting phase structure.
- single-phased superconducting oxide /
- pressure dependence /
- high-pressure DTA

参考文献(7)

Chu C W, et al. Phys Rev Lett, 1987, 58: 405.

Griessen R. Phys Rev B, 1987, 36(10): 5284.

Zhang J L, et al. Modn Phys Lett B, 1988, 2(7): 879.

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Zhang J L, et al. Proceedings of International Cryogenic Materials Conference-1988,1988: 181.

张进龙, 等. 科学通报, 1989, 18: 1390.

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