Investigation of magnetic isotope effect in high-Tc superconductors
Investigation of magnetic isotope effect in high-Tc superconductors
批准号:
22740230
负责人:
MATSUURA Masato
金额:
$2.75万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (B)
财政年份:
2010
资助国家:
日本
项目状态:
已结题
起止时间:
2010 至 2011
中文摘要
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英文摘要
In order to reveal microscopic mechanism of the formation of Cooper pairs in high transition temperature (T_c) superconducting cuprates, we have investigated Ni-doping effect on spin dynamics by inelastic neutrons scattering. We have found that the waist energy of the hourglass shaped dispersion, E_<cross>. shift to lower energies with holding linear relationship to T_c, which is analogous to the isotope effect in BCS-type superconductors. Our findings indicate that antiferromagnetic spin fluctuations near E_<cross> play an important role on the formation of Cooper pairs in high-T_c cuprates.
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わずかに過剰ドープされたLa1.82Sr0.18CuO4に見られる磁気励起の二重構造
轻微过量掺杂的 La1.82Sr0.18CuO4 中出现磁激发双结构
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
[Y. Natsume, O. Pravaz, H. Yoshida1, and M. Imai, 藤田全基,榎木勝徳,堤健之,松浦直人,山田和芳,梶本亮一,稲村泰弘,中村充孝,新井正敏,J.M. Tranquada]
通讯作者:
藤田全基,榎木勝徳,堤健之,松浦直人,山田和芳,梶本亮一,稲村泰弘,中村充孝,新井正敏,J.M. Tranquada
Ni-substitution effects on the spin dynamics and superconductivity in La_<1.85>Sr_<0.15>CuO_4
Ni取代对La_<1.85>Sr_<0.15>CuO_4自旋动力学和超导性的影响
DOI:
--
发表时间:
2012
期刊:
Phys. Rev. B
影响因子:
--
作者:
[M. Matsuura, M. Fujita, H. Hiraka, M. Kofu, H. Kimura, S. Wakimoto, T. G. Perring, C. D. Frost, and K. Yamada]
通讯作者:
and K. Yamada
Neutron Scattering Study of Magnetic Impurity-Fe Effect on hourglass-like magnetic dispersions in La-based high-T_c cuprate
磁性杂质-Fe对La基高温铜酸盐沙漏状磁分散体影响的中子散射研究
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
[松浦直人, 他]
通讯作者:
他
Ni-Substituution Effec cts on the S Spin Dynamics and Supercon nductivity i in La_<1.85>Sr_<0.15>CuO_4
Ni取代对La_<1.85>Sr_<0.15>CuO_4中S自旋动力学和超导性的影响
DOI:
10.1103/physrevb.86.134529
发表时间:
2012
期刊:
Phys Rev. B.
影响因子:
--
作者:
[M. Matsuurra, M. Fujita, K. Yamada]
通讯作者:
K. Yamada
不足ドープ領域La1.90Sr0.10CuO4における磁気励起の温度変化II
欠掺杂区La1.90Sr0.10CuO4 II磁激发的温度变化
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
[瀬川耕司, M. Kriener, 和田祥平, 佐々木聡, Z. Ren, 安藤陽一, T. Saito, T. Saito, 佐藤研太朗,堤健二,松浦直人,藤田全基,梶本亮一,Sundae Ji,池内和彦,中村充考,稲村泰弘,新井正敏,榎木勝徳,山田和芳]
通讯作者:
佐藤研太朗,堤健二,松浦直人,藤田全基,梶本亮一,Sundae Ji,池内和彦,中村充考,稲村泰弘,新井正敏,榎木勝徳,山田和芳
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fMRI Study on the Common Abnormal Neural Circuitry in Schizophrenia and Epileptic Psychosis
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批准号:14570946
-
项目类别:Grant-in-Aid for Scientific Research (C)
-
资助金额:$2.24万
-
财政年份:2002
-
负责人:MATSUURA Masato
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依托单位:
A study on brain function and morphology changes in psychoses of epilepsy
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批准号:10670920
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.79万
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财政年份:1998
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负责人:MATSUURA Masato
-
依托单位:
海外基金