Magnetization studies of the high temperature superconductors La2CuO4−y and YBa2Cu3O7−y under hydrostatic pressure

✍ Scribed by C. Allgeier; J. Heise; W. Reith; J.S. Schilling; K. Andres

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 497 KB
• Volume: 157
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(89)90018-x

✦ Synopsis

We report measurements of the static magnetic susceptibility on polycrystalhne samples of La2CuO4_j, and YBa2Cu3OT_y m the temperature range 3-300 K at both ambient and high pressure The magnetic susceptlblhty ofnonsuperconductmg La:CuO,_y with y_< 0.02 shows above 3 K no measurable change under hydrostatic pressure to 10 kbar, ~ e. I 0In z/OPI < 2%/kbar. The onset of the Melssner signal for superconducting YBa2Cu30692 sample shifts toward h2gher temperature under pressure at the rate 0To/ 0P= ( + 0.05 _+ 0.02)K/kbar, whereas the normal-state suscept~bxhty appears to be msensltlve to hydrostatic pressure ( 10In Zp/ 0P[ < 0.1%/kbar ) up to 16 kbar at room temperature.