Relationship Between Crystal Structure and Superconductivity in LnFeAsO1-y (Ln = Lanthanide)
Relationship Between Crystal Structure and Superconductivity in LnFeAsO1-y (Ln = Lanthanide)
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DOI:
10.1143/jpsjs.77sc.44
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发表时间:
2008
影响因子:
1.7
通讯作者:
Chul-Ho Lee;A. Iyo;H. Eisaki;H. Kitô;Maria Teresa Fernandez-diaz;R. Kumai;K. Miyazawa;K. Kihou;H. Matsuhata;M. Braden;K. Yamada
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文献类型:
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作者:
Chul-Ho Lee;A. Iyo;H. Eisaki;H. Kitô;Maria Teresa Fernandez-diaz;R. Kumai;K. Miyazawa;K. Kihou;H. Matsuhata;M. Braden;K. Yamada
The crystal parameters of fluorine-free LnFeAsO 1- y (Ln = lanthanide) were studied using synchrotron and laboratory X-ray powder diffraction techniques. The superconducting transition temperature T c increases as FeAs 4 -tetrahedrons transform to a regular shape. The results suggest a strong relationship between the crystal structure and superconductivity.