Strong magnetic relaxation of tetravalent iron ions in calcium‐doped yttrium iron garnet films
作者:
Camillo Borghese,
Roberto Cosmi,
Paolo De Gasperis,
Remo Tappa,
期刊:
Applied Physics Letters
(AIP Available online 1978)
卷期:
Volume 32,
issue 5
页码: 344-346
ISSN:0003-6951
年代: 1978
DOI:10.1063/1.90017
出版商: AIP
数据来源: AIP
摘要:
Ferromagnetic resonance relaxation has been used to study a series of LPE‐grown YIG films containing calcium in increasing concentrations. The considerably large linewidths revealed that a high population of Fe4+ions is allowed to enter the epilayers. Etching techniques and selective heat treatments provided respectively an insight on the Ca‐concentration gradients within the films and a means of confirming the identification of the relaxing ions.
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