Appearance of ferromagnetism in nanoscaled 4d/5d transition metal induced by electrical, optical and dynamical techniques
Appearance of ferromagnetism in nanoscaled 4d/5d transition metal induced by electrical, optical and dynamical techniques
批准号:
19310077
负责人:
SATO Tetsuya
金额:
$12.4万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (B)
财政年份:
2007
资助国家:
日本
项目状态:
已结题
起止时间:
2007 至 2009
中文摘要
一些4d/5d过渡金属,例如,Pd和Pt具有接近铁磁性的性质,因此通过在一定条件下费米能处的态密度的增加,可以预期铁磁性的出现。当这些材料具有低维结构时,特别是,可以通过一些非本征操作来操纵从非磁性到铁磁状态的磁性变化。这样的铁磁到铁磁的切换可以用于磁性器件的开发。在这项研究中,磁操纵的基本原理,这是基于铁磁性的感应,以满足斯通纳的标准,通过改变态密度,使用电气,光学和动力学技术,进行了研究。
英文摘要
Some of 4d/5d transition metals, e.g., Pd and Pt, have nearly ferromagnetic nature, and thus appearance of ferromagnetism is expected through increase in density of states at Fermi energy under a certain condition. When these materials have low-dimensional structures, especially, the magnetic change from nonmagnetic to ferromagnetic states can be manipulated through some extrinsic operation. Such a nonmagnetic to ferromagnetic switching can be used for the development of magnetic devices. In this study, the fundamentals of magnetic manipulation, which is based on the induction of ferromagnetism to satisfy Stoner's criteria by changing the density of states using electrical, optical and dynamical techniques, were investigated.
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Size depndence of martensite transformation temperature in ferromagnetic shape memory alloy FePd
铁磁形状记忆合金 FePd 中马氏体转变温度的尺寸依赖性
DOI:
--
发表时间:
2008
期刊:
Jouranl of Applied Physics Vol.103,No.6
影响因子:
--
作者:
[Kenta Seki, Hiroaki Kura, Tetsuya Sato, Tomoyasu Taniyama]
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Tomoyasu Taniyama
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DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[佐藤寛之, 佐藤徹哉]
通讯作者:
佐藤徹哉
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DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[大場洋次郎, 佐藤徹哉, 篠原武尚, 奥隆之, 鈴木淳市]
通讯作者:
鈴木淳市
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表面修饰 Pt 纳米粒子的铁磁性表达
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
[坂本泰浩, 藏裕彰, 須田理行, 牧英之, 栄長泰明, 佐藤徹哉]
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第一原理計算による二次元系Pdの磁性発現に関する研究
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DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
[浦山太一, 影島博之, 佐藤徹哉]
通讯作者:
佐藤徹哉
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