Nota de FísicaPublicado
Nuclear hyperfine interactions and chemical bonding in high superconductors
J. Danon
1987
Dados da publicação
- Autores
- J. Danon
- Tipo
- Nota de Física
- Status
- Publicado
- Data de publicação
- 1987
- Descrição
- Nuclear quadrupole resonances of <math>Cu^{63}\,\!</math> and <math>Fe^{57}\,\!</math> Mössbauer spectroscopy of the high temperature superconductor <math>YBa_2Cu_30_{7-\gamma}\,\!</math> are described together with synchrotron radiation studies of the copper oxidation states in this material. The Mössbauer spectra of <math>^{57}Fe\,\!</math> in the two distinct crystallographic sites of the Cu atoms in <math>YBa_2Cu_30_{7-\gamma}\,\!</math> are very similar from the quadrupole coupling point of view although exhibiting markedly different values for the isomer shift. The role of oxygen vacancies in the hyperfine interactions is discussed.
- Ano
- 1987
- Número
- CBPF-NF-046/87
- Vínculo com tese
- Não
- Vínculo com bolsa
- Não