Simulation study on the magnetic order in the phason space in quasilttices of antiferromagnetic interactions
反铁磁相互作用准硅片相子空间磁序的模拟研究
基本信息
- 批准号:13650717
- 负责人:
- 金额:$ 2.18万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2001
- 资助国家:日本
- 起止时间:2001 至 2003
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Simulation calculations were performed for the investigation of the magnetic orders of Ising spins on a structure model of the icosahedral Zn-Mg-Ho quasicrystal assuming oscillating Ruderman-Kittel-Kasuya-Yosida-like interactions by the use of the simulated annealing method. Long-range magnetic orders were identified by sharp spots in magnetic diffraction calculations. A long-range antiferromagnetic order was found in the case of antiferromagnetic Interactions for the first and third nearest neighbors and ferromagnetic interactions for the second and fourth nearest neighbors. Interactions farther than the second nearest neighbors were necessary for the realization of the antiferromagnetic order extending over the whole system size. The long-range antiferromagnetic order was found to be a new type of order of subdivisions of the spin domains in the phason space, which does not realize in usual periodic crystals.A similar investigation was carried out on antiferromagnetic orders in a 2-dimensional Penrose lattice. Two kinds of antiferromagnetic orders were found in two cases of the interaction parameters. Both orders are found to conform to the local matching rule of arrows set originally on the lattice. The orders are interpreted as the orders of subdivisions of the spin domains in the phason space. The connectivity of the interactions were analyzed in the real space, and is found to be consistent with the long range orders over the whole system size. The consistency of the connectivity of the interactions is most adequately grasped in the phason space.Experimental studies were also performed on the structural and magnetic properties of related quasicrystals.
采用模拟退火法,在假设Ruderman-Kittel-Kasuya-Yosida类振荡相互作用的二十面体结构模型上,对伊辛自旋的磁序进行了模拟计算。在磁衍射计算中,通过尖锐的斑点来识别长程磁序。在第一近邻和第三近邻的反铁磁相互作用以及第二近邻和第四近邻的铁磁相互作用的情况下,发现了长程反铁磁有序。比第二近邻更远的相互作用是实现整个系统尺寸范围内的反铁磁有序所必需的。长程反铁磁有序是相子空间中自旋磁畴的一种新的细分有序,这在通常的周期晶体中是不存在的。对二维PenRose晶格中的反铁磁有序也进行了类似的研究。在两种情况下的相互作用参数中发现了两种反铁磁序。发现这两个顺序都符合最初在晶格上设置的箭头的局部匹配规则。这些顺序被解释为相子空间中自旋域的细分顺序。在真实空间中分析了相互作用的连通性,发现它们在整个系统尺寸上与长程有序是一致的。在相子空间中对相互作用的连通性的一致性进行了最充分的把握,并对相关准晶的结构和磁性进行了实验研究。
项目成果
期刊论文数量(58)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
S.Matsuo et al.: "Long range antiferromagnetic order in Ising model simulations in two-dimensional Penrose lattice"J.Non-Cryst.Solids. 334-335. 421-426 (2004)
S.Matsuo 等人:“二维彭罗斯晶格中伊辛模型模拟中的长程反铁磁序”J.Non-Cryst.Solids。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Tsutomu Ishimasa et al.: "A Zn-based icosahedral quasicrystal classified into the same structure type as Cd-based icosahedral quasicrystals?"J.Alloys. Comp.. 342. 13-17 (2002)
Tsutomu Ishimasa 等人:“锌基二十面体准晶体与镉基二十面体准晶体属于相同的结构类型?”J.Alloys。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Senni Motomura, Yasushi Kaneko, Shiro Kashimoto, Hiroshi Nakano, Tsutomu Ishimasa, Susumu Matsuo: "Magnetic and electrical properties of a new type Zn-Mg-Sc icosahedral quasicrystal"J.Non-Crys. Solids. 334-335. 393-397 (2004)
Senni Motomura、Yasushi Kaneko、Shiro Kashimoto、Hiroshi Nakano、Tsutomu Ishimasa、Susumu Matsuo:“新型 Zn-Mg-Sc 二十面体准晶的磁电特性”J.Non-Crys。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
R.Maezawa et al.: "Icosahedral quasicrystals in Zn-T-Sc (T=Mn, Fe, C, Ni) alloys"Phil.Mag Lett.. (印刷中).
R. Maezawa 等人:“Zn-T-Sc (T=Mn、Fe、C、Ni) 合金中的二十面体准晶”Phil.Mag Lett..(出版中)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
S.Matsuo et al.: "Quasiperiodic long-range ferrimagnetic order in Ising model simulation in an icosahedral quasicrystal model structure"J.Mag.Mag.Mater. 246. 223-232 (2002)
S.Matsuo 等人:“二十面体准晶体模型结构中伊辛模型模拟中的准周期长程亚铁磁序”J.Mag.Mag.Mater。
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- 影响因子:0
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{{ truncateString('MATSUO Susumu', 18)}}的其他基金
Experimental study on the response of phason strains of the quasicrystals
准晶相子应变响应的实验研究
- 批准号:
09650758 - 财政年份:1997
- 资助金额:
$ 2.18万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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