Mossbauer study of ε-Al_xFe_<2-x>O_3 nanomagnets
Mossbauer study of ε-Al_xFe_<2-x>O_3 nanomagnets
复制标题
ε-Al_xFe_<2-x>O_3纳米磁体的穆斯堡尔研究
DOI:
10.1007/s10751-011-0442-1
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
S.Ohkoshi
中科院分区:
文献类型:
--
作者:
K.Yamada;H.Tokoro;M.Yoshikiyo;T.Yorinaga;A.Namai;S.Ohkoshi
A series of Al3 +-substituted ε-Fe2O3nanomagnets, ε-AlxFe2 −xO3(x= 0, 0.21, 0.40), with large coercive field values was studied by57Fe Mössbauer spectroscopy. The hyperfine field and absorption coefficient in the Mössbauer spectra changed withx. These behaviors can be explained by the selective replacement of Fe3 +ions with Al3 +ions. This is the first report on the Mössbauer spectra of metal-substituted ε-Fe2O3.