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To pursuit high electrochemical performance of supercapacitors based on Faradaic charge-transfer with redox reaction or absorption/desorption effect, the intercalation efficiency of electrolyte ions into electrode materials is a crucial…

Materials Science · Physics 2017-06-27 Shuang Zhou , Huimin Gao , Cheng Zhang , Jie Yang , Shaolong Tang , Qingyu Xu , Shuai Dong

A new layered iron-oxychalcogenide Na2Fe2OSe2 has been synthesized and structurally characterized by powder X-ray diffraction. The structure is formed by alternate stacking of the newly discovered [Fe2OSe2] blocks and double layers of Na.…

Strongly Correlated Electrons · Physics 2013-05-29 J. B. He , D. M. Wang , H. L. Shi , H. X. Yang , J. Q. Li , G. F. Chen

The results of magnetic investigations on a new series of compounds, Mn2R3Sb3O14, containing 2-dimensional Kagome lattice of R ions and belonging to pyrochlore series, are presented. Crystallographic features of light R members (R= La, Pr…

Strongly Correlated Electrons · Physics 2016-05-18 Venkatesh Chandragiri , Kartik K Iyer , K. Maiti , E. V. Sampathkumaran

Chirality, a fundamental structural property of crystals, can induce many unique topological quantum phenomena. In kagome lattice, unconventional transports have been reported under tantalizing chiral charge order. Here, we show how by…

The antiferromagnetic kagome material Na2Ti3Cl8 exhibits a first-order phase transition; the low-temperature phase is characterized by the trimerizations of Ti ions. In this work, we carry out first-principles calculations on the crystal…

Materials Science · Physics 2022-04-15 Shuang Liu , Zhi-Bo Yin , Meng-Qiu Long , Yun-Peng Wang

The electronic structure of the kagome staircase compounds, Ni3V2O8 and Co3V2O8, has been investigated using soft x-ray absorption, soft x-ray emission, and resonant inelastic x-ray scattering (RIXS). Comparison between the two compounds,…

Strongly Correlated Electrons · Physics 2013-05-02 J. Laverock , B. Chen , A. R. H. Preston , K. E. Smith , N. R. Wilson , G. Balakrishnan , P. -A. Glans , J. -H. Guo

We investigate the magnetism of a previously unexplored distorted spin-1/2 kagome model consisting of three symmetry-inequivalent nearest-neighbor antiferromagnetic Heisenberg couplings Jhexagon, J and J', and uncover a rich ground state…

Strongly Correlated Electrons · Physics 2022-01-24 Max Hering , Francesco Ferrari , Aleksandar Razpopov , Igor I. Mazin , Roser Valenti , Harald O. Jeschke , Johannes Reuther

Kagome materials with inherent geometric frustration can produce many interesting physical properties, such as flat bands, quantum spin liquid, chiral magnetism, superconductivity and density-wave orders. Sometimes, the localized 4$f$…

Strongly Correlated Electrons · Physics 2025-05-07 Jinhua Wang , Shengtai Fan , Yiwen Li , Xiyu Zhu , Hai-hu Wen

The Nd-langasite compound contains planes of magnetic Nd3+ ions on a lattice topologically equivalent to a kagom\'{e} net. The magnetic susceptibility does not reveal any signature of long-range ordering down to 2 K but rather a correlated…

We report on high-field magnetization measurements for a number of layered vanadium phosphates that were recently recognized as spin-1/2 frustrated square lattice compounds with ferromagnetic nearest-neighbor couplings (J_1) and…

Strongly Correlated Electrons · Physics 2010-10-28 Alexander A. Tsirlin , Burkhard Schmidt , Yurii Skourski , Ramesh Nath , Christoph Geibel , Helge Rosner

The dielectric constant of the Kagome staircase-like Co3V2O8 polycrystalline compound has been measured as function of temperature and magnetic field up to 14T. It is found that the application of an external magnetic field suppresses the…

Materials Science · Physics 2015-06-25 Natalia Bellido , Christine Martin , Charles Simon , Antoine Maignan

Experimental evidence for a plethora of low energy spin excitations in the spin-1/2 kagome antiferromagnet ZnCu3(OH)6Cl2 may be understandable in terms of an extended Fermi surface of spinons coupled to a U(1) gauge field. We carry out…

Strongly Correlated Electrons · Physics 2009-11-13 Ookie Ma , J. B. Marston

We report the synthesis of single crystals of a novel layered iridate Ba$_{21}$Ir$_9$O$_{43}$, and present the crystallographic, transport and magnetic properties of this material. The compound has a hexagonal structure with two iridium…

Recently, low-dimensional organic-inorganic hybrid halide compounds have aroused great attention in the optoelectronic field, due to the unique topology and optical properties. Herein, we report an Mn4+ doped [N(CH3)4]2TiF6 zero-dimensional…

Recently, the mixed transition metal oxides of the form Li(Ni1-y-zCoyMnz)O2, have become the center of attention as promising candidates for novel battery material. These materials have also revealed very interesting magnetic properties due…

Strongly Correlated Electrons · Physics 2013-07-30 J. Magnus Wikberg , Martin Mansson , Mohammed Dahbi , Kazuya Kamazawa , Jun Sugiyama

The kagome lattice, whose electronic valence band (VB) structure includes two Dirac bands and one flat band, offers a rich space to realise tuneable topological and strongly correlated electronic phases in two-dimensional (2D) and layered…

Strongly Correlated Electrons · Physics 2021-09-16 Dhaneesh Kumar , Jack Hellerstedt , Bernard Field , Benjamin Lowe , Yuefeng Yin , Nikhil V. Medhekar , Agustin Schiffrin

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…

Strongly Correlated Electrons · Physics 2015-06-12 M. S. Grbić , S. Krämer , C. Berthier , F. Trousselet , O. Cépas , H. Tanaka , M. Horvatić

Geometrically frustrated systems with a large degeneracy of low energy states are of central interest in condensed-matter physics. The kagome net - a pattern of corner-sharing triangular plaquettes - presents a particularly high degree of…

Motivated by a recent experiment on Rb2Cu3SnF12, where spin-1/2 Cu2+ moments reside on the layers of Kagome-like lattices, we investigate quantum ground states of the antiferromagnetic Heisenberg model on a series of deformed Kagome…

Strongly Correlated Electrons · Physics 2013-05-29 Bohm-Jung Yang , Yong Baek Kim

Thin films of V2O3 have been grown on Au(111) and W(110). It is possible to prepare two different surface terminations: the first one is vanadium terminated whereas the second one exhibits additional oxygen atoms, forming vanadyl groups…

Other Condensed Matter · Physics 2007-05-23 Anne-Claire Dupuis