Study for the multipolar interaction in cubic rare-earth compounds with no four-fold axis

无四重轴立方稀土化合物的多极相互作用研究

• 批准号: 21740238
• 负责人: MATSUOKA Eiichi
• 金额: $ 2.25万
• 依托单位: Kobe University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21740238/
• 关键词: 四極子秩序; 多極子秩序; 反強磁性秩序; 強相関系; 希土類パラジウムブロンズ; 電気抵抗率測定; 磁化測定; 強磁性秩序; 四極子相互作用; 磁気秩序; 八極子秩序; 中性子散乱; 磁気相図; 比熱測定; 中性子回折; 傾角反強磁性

The effects of multipolar interaction for the magnetic properties of cubic compounds RPd_3S_4(R : rare-earth metals) whose crystal structures have no four-fold axis have been examined by performing magnetization, electrical resistivity and specific-heat measurements and neutron-scattering experiments. Following are the results of this study.(1) TbPd_3S_4 shows magnetic-field induced antiferroquadrupolar ordering.(2) The origin for the first-order like antiferromagnetic transitions in SmPd_3S_4 and TbPd_3S_4 is the competition between the magnetic interaction and multipolar interaction.(3) Possible order parameter of the phase transition in PrPd_3S_4 is not magnetic octupole but magnetic dipole.(4) New tetragonal compounds LnRu_2X_2B(Ln=Ce, Pr, Nd、X=Al, Ga) were synthesized. These compounds show ferromagnetic transitions at rather high temperatures of approximately 10 K.

通过磁化强度、电阻率、比热测量和中子散射实验，研究了多极相互作用对晶体结构无四重轴的立方化合物RPd_3S_4(R：稀土金属)磁性能的影响。本研究的结果如下：(1) TbPd_3S_4 表现出磁场诱导的反铁四极有序。(2) 一阶类的起源SmPd_3S_4和TbPd_3S_4中的反铁磁转变是磁相互作用和多极相互作用之间的竞争。(3)PrPd_3S_4中相变的可能序参量不是磁八极子而是磁偶极子。(4)新的四方化合物LnRu_2X_2B(Ln=Ce, Pr ，Nd，X=Al，Ga) 被合成。在大约 10 K 的相当高的温度下发生铁磁转变。

项目成果

Structural and physical properties of trilayer nickelates R4Ni3O10 ( R=La , Pr, and Nd)

• DOI: 10.1103/physrevb.102.195144
• 发表时间: 2020-07-01
• 期刊: arXiv: Strongly Correlated Electrons
• 作者: Dibyata Rout;S. Mudi;M. Hoffmann;S. Spachmann;R. Klingeler;Surjeet Singh
• 通讯作者: Surjeet Singh

Resonant X-Ray Diffraction Study of Multipole Ordering in the Ferromagnetic Compound CePd_3S_4

铁磁化合物CePd_3S_4多极有序的共振X射线衍射研究

• 发表时间: 2012
• 作者: S. Michimura; T. Inami; E. Matsuoka; M. Watahiki; K. Tanigaki; H. Onodera
• 通讯作者: H. Onodera

Antiferromagnetic Alignment of Magnetic Dipolar Moments Observed by Neutron Powder Diffraction in Rare-Earth Palladium Bronze PrPd_3S_4

稀土钯青铜PrPd_3S_4中中子粉末衍射观察到的磁偶极矩的反铁磁排列

• 发表时间: 2010
• 作者: E.Matsuoka; et al.
• 通讯作者: et al.

Evolution of gap anisotropy with doping carriers in Li_xZrNCl superconductors

Li_xZrNCl超导体中带隙各向异性随掺杂载流子的演化

• 发表时间: 2010
• 影响因子: 1.7
• 作者: Y.Kasahara; et al.
• 通讯作者: et al.

Magnetic behavior of single-crystalline RPd_3S_4 (R=Ho and Er)

单晶RPd_3S_4的磁行为（R=Ho和Er）

• 发表时间: 2009
• 作者: E.Matsuoka; et al.
• 通讯作者: et al.