Hall effect on nontrivial quadrupole order in quasi-kagome compound URhSn
Institute for Solid State Physics (ISSP), University of Tokyo（东京大学固体物理研究所）；Department of Physics, Mizoram University（米佐拉姆大学物理系）；Institute for Materials Research (IMR), Tohoku University（东北大学物质材料研究所学）；Advanced Science Research Center, Japan Atomic Energy Agency（日本原子能研究机构先进科学研究中心）；Helmholtz-Zentrum Dresden-Rossendorf（德累斯顿-罗斯多夫亥姆霍兹中心）
Yusei Shimizu, Arvind Maurya, Yoshiya Homma, Motoi Kimata, Toni Helm, Ai Nakamura, Dexin Li, Atsushi Miyake, Dai Aoki
备注：
5 pages, 4 figures, accepted for publication in J. Phys. Soc. Jpn
This study focuses on the transport properties of the quasi-kagome compound URhSn, which exhibits successive phase transitions at TC =16 K (ferromagnetic phase) and TO =54 K (intermediate phase). A large anomalous Hall component is present along the easy-magnetization axis (H|| [0001]), and the Hall resistivity shows very complex temperature- and field-dependence, with a sign reversal at low temperatures. The Hall resistivity exhibits a nonlinear and unusual field-dependence. Interestingly, there exists an unusual Hall component that is not proportional to the magnetic susceptibility for H || [0001] in both the intermediate and ferromagnetic states. These results reveal unconventional transport properties of URhSn, providing important insights into nontrivial multipolar phases in 5f- electron systems.
Magnetic Anisotropies and Skyrmion Lattice Related to Magnetic Quadrupole Interactions of the RKKY Mechanism in Frustrated Spin-Trimer System Gd$_{3}$Ru$_{4}$Al$_{12}$ with a Breathing Kagome Structure
Dimensional change of quadrupole orders in pseudospin-$\frac{1}{2}$ pyrochlore magnets under [111] field
我们研究了在[111]磁场下，由代表非Kramers离子的烧绿石磁体的有效赝自旋- $\frac{1}{2}$哈密顿量描述的电四极矩的长程序，与Tb $_{2}$ Ti $_{2}$ O $_{7}$有关.利用经典的蒙特卡罗模拟研究了该阻挫系统的序参量和相变。在零磁场下，该模型经历了从顺磁态到赝自旋反平行排列的有序态的一级相变。该赝自旋序的特征在于波矢$\boldsymbol{k}=0$，并且通过从简并的$\boldsymbol{k}=(h,h,h)$平均场序中选择的能量或有序无序机制来选择。在[111]磁场下，这种三维四极序在每个由场致铁磁三角晶格分隔的kagomé晶格上转变为准二维四极序。我们讨论了模拟结果与Tb $_{2}$ Ti $_{2}$ O $_{7}$的实验数据的关系。
Local probe investigation of the spin dynamics in the kagome and inter-layers of orthorhombic barlowite Cu$_4$(OD)$_6$FBr: $^{79}$Br and $^{63}$Cu NQR study
Observation of ubiquitous charge correlations and hidden quantum critical point in hole-doped kagome superconductors
Brown University（布朗大学）；Università di Parma（帕尔马大学）；Brown Center for Theoretical Physics and Innovation, BCTPI, Brown University（布朗大学理论物理与创新中心）；Università di Bologna（博洛尼亚大学）；Università di Modena e Reggio Emilia（摩德纳和雷焦艾米利亚大学）；University of California Santa Barbara（加州大学圣塔芭芭拉分校）；Université Grenoble Alpes（格勒诺布尔阿尔卑斯大学）；Laboratoire National des Champs Magnétiques Intenses（强磁场国家实验室）；CNRS（法国国家科学研究中心）；Université de Toulouse（图卢兹大学）；INSA Toulouse（图卢兹国立应用科学学院）；European Magnetic Field Laboratory（欧洲强磁场实验室）
Competing lattice structures induced by Sn substitution in CsV$_3$Sb$_5$
Università di Parma（帕尔马大学）；Brown University（布朗大学）；Università di Bologna（博洛尼亚大学）；Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche（意大利国家研究委员会材料工坊研究所）；University of California Santa Barbara（加州大学圣塔芭芭拉分校）
NMR evidence for a loop-current state with broken $C_6$ symmetry in the charge-ordered CsV$_3$Sb$_5$
Institute of Physics, Chinese Academy of Sciences（中国科学院物理研究所）；Beijing National Laboratory for Condensed Matter Physics（北京凝聚态物理国家研究中心）；School of Physical Sciences, University of Chinese Academy of Sciences（中国科学院大学物理科学学院）
