Effect of a bias field (up to 1 T) on the a.c. susceptibility of Cr0.3Tl1Ba2Ca2Cu3Ox

✍ Scribed by J.S. Muñoz; M. Pont; T. Puig; Z.Z. Sheng; Y. Xin; D.X. Gun; D.O. Pederson

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 285 KB
• Volume: 32
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/0011-2275(92)90024-5

✦ Synopsis

The a.c. susceptibility of bulk Cro3TI1Ba2Ca2CusOx at 8 A m -1 and 111 Hz has been measured as a function of temperature and d.c. bias field ranging from 0 to 795 000 A m-1. As the d.c. magnetic field is increased a decrease in the critical temperature as well as in the temperature at which the imaginary part of the susceptibility peaks is observed. We have also measured the a.c. susceptibility as a function of a.c. magnetic field amplitude without d.c. bias field. In this case no decrease in the transition temperature is observed despite the decrease found again in the temperature at which the imaginary component of the susceptibility has its maximum. The peak temperature, from the d.c. bias field measurements, has been related to the irreversibility line obtained from the broadening of the resistive transition under the presence of a d.c. magnetic field.