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

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.
采用模拟退火方法对二十面体Zn-Mg-Ho准晶结构模型上的Ising自旋磁序进行了模拟计算,并假设了ruderman - kittel - kasuyya - yosida -like相互作用的振荡。在磁衍射计算中,用尖点来识别长程磁阶。在第一和第三近邻的反铁磁相互作用以及第二和第四近邻的铁磁相互作用的情况下,发现了一个远程反铁磁序。要实现在整个系统尺度上扩展的反铁磁有序,需要比第二近邻更远的相互作用。在相位空间中发现了一种新的自旋域细分顺序,这是在通常的周期晶体中不存在的。对二维彭罗斯晶格中的反铁磁序进行了类似的研究。在两种相互作用参数下发现了两种反铁磁序。发现这两个阶都符合原先在格上的箭头的局部匹配规则。这些阶数被解释为相空间中自旋域的细分阶数。在实际空间中分析了相互作用的连通性,发现在整个系统尺寸上,相互作用的连通性与长范围阶数一致。相互作用的连通性的一致性在相空间中得到了最充分的把握。实验研究了相关准晶的结构和磁性能。

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。
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    0
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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。
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    0
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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。
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    0
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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:
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    0
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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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MATSUO Susumu其他文献

MATSUO Susumu的其他文献

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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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