Comparison of direct and modulated microwave magnetoresistance in ceramic and single crystal YBa2Cu3O7−δ

✍ Scribed by M. Požek; A. Dulčić; B. Rakvin

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 574 KB
• Volume: 197
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(92)90253-9

✦ Synopsis

A comparative study of microwave absorption in single crystals and ceramic samples of YBa2Cu3OT_~ has made it possible to distinghuish the processes in the bulk from those in the intergranular medium. The origin of various types of hysteresis in direct and modulated absorption singnals is clarified. The appearance of the modulation-dependent hysteresis is shown to be an evidence of anharmonicity in the pinning potential.