Magnetic properties of the Ag–In–rare-earth 1/1 approximants
Magnetic properties of the Ag–In–rare-earth 1/1 approximants
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Ag-In-稀土 1/1 近似值的磁性
DOI:
10.1088/0953-8984/23/5/056001
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发表时间:
2010
期刊:
影响因子:
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通讯作者:
Taku J. Sato
中科院分区:
文献类型:
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作者:
S. Ibuka;K. Iida;Taku J. Sato
We have performed magnetic susceptibility and neutron scattering measurements on polycrystalline Ag–In–RE (RE, rare-earth) 1/1 approximants. In the magnetic susceptibility measurements, for most of the RE elements, inverse susceptibility shows linear behaviour in a wide temperature range, confirming well localized isotropic moments for the RE3 + ions. Exceptionally for the light RE elements, such as Ce and Pr, nonlinear behaviour was observed, possibly due to significant crystalline field splitting or valence fluctuation. For RE = Tb, the susceptibility measurement clearly shows a bifurcation of the field-cooled and zero-field-cooled susceptibility at Tf = 3.7 K, suggesting a spin-glass-like freezing. On the other hand, neutron scattering measurements detect significant development of short-range antiferromagnetic spin correlations in the elastic channel, which is accompanied by a broad peak at meV in the inelastic scattering spectrum. These features have striking similarity to those in the Zn–Mg–Tb quasicrystals, suggesting that the short-range spin freezing behaviour is due to local high-symmetry clusters commonly seen in both systems.
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DOI:
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发表时间:
2006
期刊:
Phys.Rev.B 73
影响因子:
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作者:
木村梨絵;吉村由美子;T.J.Sato
通讯作者:
T.J.Sato
DOI:
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发表时间:
2005
期刊:
Acta. Crystallogr. Sec. A 61
影响因子:
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作者:
彦坂健児;田中咲帆;馮 雪;篠田渉平;LiLi;Li Kexin, 野呂瀬 一美;志和地弘信;S.Itoh;T.J.Sato
通讯作者:
T.J.Sato
DOI:
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发表时间:
2004
期刊:
J.Non-Crys.Solids 334-335
影响因子:
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作者:
T.Ishimasa;K.Oyamada;Y.Arichika;E.Nishibori;M.Takata;M.Sakata;K.Kato
通讯作者:
K.Kato
DOI:
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发表时间:
2008
期刊:
Japanese Journal of Applied Physics 47
影响因子:
--
作者:
岡田裕之;西村健太郎;平山悠介;中川貴;山本孝夫;楠瀬尚史;入江年雄;中村英次;Y. Morita
通讯作者:
Y. Morita