Spin-glass phase microwave study in high-TC superconductors

✍ Scribed by K.W. Blazey; A.M. Portis; K.A. Müller; J.G. Bednorz; F. Holtzberg

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 197 KB
• Volume: 153-155
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/0921-4534(88)90492-3

✦ Synopsis

Measurement of low-field microwave absorption in single-crystal YBa2Cu307_ 6 shows a series of equally spaced, narrow, anisotropic absorption lines. With the external magnetic field parallel to the twin planes, a typical line spacing is about 200 mOe with a linewidth of about 2 mOe. These lines are associated with the motion of fluxons into the regular array of twin planes. The widely observed absorption in the ceramic is therefore a powder spectrum of many small crystallites with similar line spectra, which are unresolved.