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相关论文: Canted Antiferromagnetic Order in the Kagome Mater…

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We use the coupled cluster method to high orders of approximation in order to calculate the ground-state phase diagram of the XXZ spin-$s$ kagome antiferromagnet with easy-plane anisotropy, i.e. the anisotropy parameter $\Delta$ varies…

强关联电子 · 物理学 2015-03-10 O. Götze , J. Richter

A family of V-based kagome metals AV$_3$Sb$_5$ (A = Cs, Rb, K) presents an intriguing platform for exploring the interplay of time-reversal symmetry breaking, nontrivial topological bands, and electron correlations, resulting in a range of…

材料科学 · 物理学 2024-12-11 Chongze Wang , Shichang Yao , Shuyuan Liu , Bing Wang , Liangliang Liu , Yu Jia , Jun-Hyung Cho

Based on density functional theory and symmetry analysis, we present a comprehensive investigation of electronic structure, magnetic properties and possible structural distortion of magnetic kagome metal FeGe. We estimate the magnetic…

强关联电子 · 物理学 2023-08-02 Hanjing Zhou , Songsong Yan , Dongze Fan , Di Wang , Xiangang Wan

The antiferromagnetic Heisenberg model on an anisotropic kagome lattice may be a good minimal model for real magnetic systems as well as a limit from which the isotropic case can be better understood. We therefore study the nearest-neighbor…

强关联电子 · 物理学 2009-08-05 E. M. Stoudenmire , Leon Balents

ZnCu$_{3}$(OH)$_{6}$Cl$_{2}$ ($S=1/2$) is a promising new candidate for an ideal Kagom\'e Heisenberg antiferromagnet, because there is no magnetic phase transition down to $\sim$50 mK. We investigated its local magnetic and lattice…

强关联电子 · 物理学 2008-10-03 T. Imai , E. A. Nytko , B. M. Bartlett , M. P. Shores , D. G. Nocera

We investigate the low temperature magnetic properties of a $S=\frac{5}{2}$ Heisenberg kagom\'e antiferromagnet, the layered monodiphosphate Li$_9$Fe$_3$(P$_2$O$_7$)$_3$(PO$_4$)$_2$, using magnetization measurements and $^{31}$P nuclear…

强关联电子 · 物理学 2021-10-08 E. Kermarrec , R. Kumar , G. Bernard , R. Hénaff , P. Mendels , F. Bert , P. L. Paulose , B. K. Hazra , B. Koteswararao

The mineral haydeeite, alpha-MgCu3(OD)6Cl2, is a S=1/2 kagome ferromagnet that displays long-range magnetic order below TC=4.2 K with a strongly reduced moment. Our inelastic neutron scattering data show clear spin-wave excitations that are…

强关联电子 · 物理学 2015-06-26 D. Boldrin , B. Fak , M. Enderle , S. Bieri , J. Ollivier , S. Rols , P. Manuel , A. S. Wills

We compute ground-state properties of the isotropic, antiferromagnetic Heisenberg model on the sodalite cage geometry. This is a 60-spin spherical molecule with 24 vertex-sharing tetrahedra which can be regarded as a molecular analogue of a…

强关联电子 · 物理学 2022-05-09 Roman Rausch , Matthias Peschke , Cassian Plorin , Christoph Karrasch

The low temperature properties of the Kagome-type system Co3V2O8 have been studied by powder neutron diffraction both in zero field and in applied magnetic field of up to 8 T. Below 6 K, the zero-field ground state is ferromagnetic with the…

材料科学 · 物理学 2007-05-23 N. R. Wilson , O. A. Petrenko , L. C. Chapon

We investigate magnetic orderings on kagome lattice numerically from the tight-binding Hamiltonian of electrons, governed by the filling factor and spin-orbit coupling (SOC) of electrons. We find that even a simple kagome lattice model can…

介观与纳米尺度物理 · 物理学 2022-07-13 Jin Watanabe , Yasufumi Araki , Koji Kobayashi , Akihiro Ozawa , Kentaro Nomura

Frustrated magnetism on the kagome lattice has been a fertile ground for rich and fascinating physics, ranging from experimental evidence of a spin liquid to theoretical predictions of exotic superconductivity. Among experimentally realized…

Frustrated interactions in the Cu-based mineral rouaite with alternating antiferromagnetic and ferromagnetic spin chains, Cu$_2$(OH)$_3$NO$_3$, introduce non-trivial magnetic ground states and exotic excitations arising from them. We…

We study the magnetic properties of the metallic kagome system $\left(\mathrm{Fe}_{1-x} \mathrm{Co}_{x}\right) \mathrm{Sn}$ by a combination of Muon Spin Relaxation ($\mu \mathrm{SR}$), magnetic susceptibility and Scanning Tunneling…

Exotic quantum states arise from the interplay of various degrees of freedom such as charge, spin, orbital, and lattice. Recently, a novel short-ranged charge order (CO) was discovered deep inside the antiferromagnetic phase of Kagome…

Using $^{63,65}$Cu nuclear magnetic resonance (NMR) in magnetic fields up to 30 T we study the microscopic properties of the 12-site valence-bond-solid ground state in the "pinwheel" kagome compound Rb$_2$Cu$_3$SnF$_{12}$. We find that the…

强关联电子 · 物理学 2015-06-12 M. S. Grbić , S. Krämer , C. Berthier , F. Trousselet , O. Cépas , H. Tanaka , M. Horvatić

The layered compound with distorted Kagome nets, Dy3Ru4Al12, was previously reported to undergo antiferromagnetic ordering below (TN=) 7 K, based on investigations on single crystals. Here, we report the results of our investigation of ac…

强关联电子 · 物理学 2016-05-05 Venkatesh Chandragiri , Kartik K Iyer , E. V. Sampathkumaran

The kagome lattice sits at the crossroad of present research efforts in quantum spin liquids, chiral phases, emergent skyrmion excitations and anomalous Hall effects to name but a few. In light of this diversity, our goal in this paper is…

强关联电子 · 物理学 2016-02-17 K. Essafi , Owen Benton , Ludovic D. C. Jaubert

Experimental studies of high-purity kagome-lattice antiferromagnets (KAFM) are of great importance in attempting to better understand the predicted enigmatic quantum spin-liquid ground state of the KAFM model. However, realizations of this…

强关联电子 · 物理学 2021-06-02 W. Sun , T. Arh , M. Gomilšek , P. Koželj , S. Vrtnik , M. Herak , J. -X. Mi , A. Zorko

The neutron diffraction and nuclear magnetic resonance (NMR) measurements have been used to microscopically analyze the magnetic structure in the $S = 1/2$ kagome antiferromagnet CdCu$_{3}$(OH)$_{6}$(NO$_{3}$)$_{2}\cdot $H$_{2}$O. Below the…

We present the magnetic orders and excitations of the distorted kagome intermetallic magnet TmAgGe. Using neutron single crystal diffraction we identify the propagation vectors $\bf{k}$ = (1/2 0 0) and $\bf{k}$ = (0 0 0) and determine the…