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Magnetic circular dichroism in YBa2Cu3Ox thin films

✍ Scribed by H. Izumi; K. Ando; N. Koshizuka; K. Ohata

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
458 KB
Volume
199
Category
Article
ISSN
0921-4534

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✦ Synopsis

Magnetic circular dichroism (MCD) in superconducting and insulating YBa2Cu3Ox thin films is studied. The MCD spectra in superconducting samples exhibit a linearly field dependent structure at 4-5 eV. The field and temperature dependences, the latter seeming to obey the Curie law, suggest that this structure is associated with the intraionic 3d-4p transitions of localized Cu ions at the Cu-O chains. These transitions are thought to be the origin of the peak at 4.1 eV observed in insulating ones. A comparison of the spectra of insulating YBa2Cu3Ox dielectric function studies and this work is also given.

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