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Related papers: AgCuVO4: a quasi one-dimensional S = 1/2 chain com…

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We have studied the magnetic structure of the ferroelectric frustrated spin-1/2 chain material LiCuVO4 in applied electric and magnetic fields using polarized neutrons. A symmetry and mean-field analysis of the data rules out the presence…

Strongly Correlated Electrons · Physics 2011-03-23 M. Mourigal , M. Enderle , R. K. Kremer , J. M. Law , B. Fåk

The frustrated one-dimensional (1D) quantum magnet LiCuSbO$_4$ is one rare realization of the $J_1-J_2$ spin chain model with an easily accessible saturation field, formerly estimated to 12~T. Exotic multipolar nematic phases were…

Strongly Correlated Electrons · Physics 2017-12-27 Marko Bosiočić , Fabrice Bert , Siân E. Dutton , Robert J. Cava , Peter J. Baker , Miroslav Požek , Philippe Mendels

We report the results of ac and dc magnetization (M) and heat-capacity (C) measurements on the solid solution, Sr$_3$Cu$_{1-x}$Zn$_x$IrO$_6$. While the Zn end member is known to form in a rhombohedral pseudo one-dimensional K$_4$CdCl$_6$…

Strongly Correlated Electrons · Physics 2009-11-07 Asad Niazi , E. V. Sampathkumaran , P. L. Paulose , D. Eckert , A. Handstein , K. -H. Müller

Neutron scattering experiments have been performed on Sr$_{14}$Cu$_{24}$O$_{41}$ which consists of both chains and ladders of copper ions. We observed that the magnetic excitations from the CuO$_2$ chain have two branches and that both…

Strongly Correlated Electrons · Physics 2009-10-31 M. Matsuda , T. Yoshihama , K. Kakurai , G. Shirane

We consider a simplified model of the magnetic structure of the two-dimensional compound $CaV_4O_9$ in terms of interacting square plaquettes of spins with two distinct antiferromagnetic exchange constants. We analyze the competition…

Condensed Matter · Physics 2009-10-28 S. V. Meshkov , D. Foerster

The ordering temperature of a quasi-one-dimensional system, consisting of weakly interacting quantum spin-1/2 chains with antiferromagnetic spin-frustrating couplings (or zig-zag ladder) is calculated. The results show that a quantum…

Strongly Correlated Electrons · Physics 2009-11-13 A. A. Zvyagin , S. -L. Drechsler

We report a quasi-one-dimensional S = 1 spin chain compound BaNiTe2O7. This magnetic system has been investigated by magnetic susceptibility, specific heat, and neutron powder diffraction. These results indicate that BaNiTe2O7 develops a…

We report structural and magnetic properties of the spin-$\frac12$ quantum antiferromagnet Cu[C$_6$H$_2$(COO)$_4$][C$_2$H$_5$NH$_3$]$_2$ by means of single-crystal x-ray diffraction, magnetization, heat capacity, and electron spin resonance…

We have measured the specific heat of the S = 1/2 alternating Heisenberg antiferromagnetic chain compound pentafluorophenyl nitronyl nitroxide in magnetic fields using a single crystal and powder. A sharp peak due to field-induced magnetic…

Strongly Correlated Electrons · Physics 2007-11-16 Yasuo Yoshida , Tatsuya Kawae , Yuko Hosokoshi , Katsuya Inoue , Nobuya Maeshima , Koichi Okunishi , Kiyomi Okamoto , Toru Sakai

Here we report a new quasi-one-dimensional $S$ = 1 chain compound NiTe$_{2}$O$_{5}$. From the comprehensive study of the structure and magnetic properties on high quality single crystalline NiTe$_{2}$O$_{5}$, it's revealed that…

Strongly Correlated Electrons · Physics 2019-10-31 Jun Han Lee , Marie Kratochvílová , Huibo Cao , Zahra Yamani , J. S. Kim , Je-Geun Park , G. R. Stewart , Yoon Seok Oh

We apply density functional theory band structure calculations, the coupled-cluster method, and exact diagonalization to investigate the microscopic magnetic model of the spin-1/2 compound Cu2GeO4. The model is quasi-two-dimensional, with…

Strongly Correlated Electrons · Physics 2011-03-24 Alexander A. Tsirlin , Ronald Zinke , Johannes Richter , Helge Rosner

The magnetic structure of the edge sharing cuprate compound Li2CuO2 has been investigated by means of ab initio electronic structure calculations. The first and second neighbor in-chain magnetic interactions are calculated to be -142 K and…

Materials Science · Physics 2007-05-23 Coen de Graaf , Iberio de P. R. Moreira , Francesc Illas , Oscar Iglesias , Amilcar Labarta

La$_4$Cu$_3$MoO$_{12}$ is a cluster antiferromagnet where copper spin-1/2 form a network of st rongly coupled spin-trimers. The magnetic properties of this material have bee n examined using magnetic neutron scattering. At low temperatures,…

Strongly Correlated Electrons · Physics 2007-05-23 Y. Qiu , C. Broholm , S. Ishiwata , M. Azuma , M. Takano , R. Bewley , W. J. L. Buyers

We report synthesis and magnetic properties of quasi-one-dimensional spin-$\frac{1}{2}$ Heisenberg antiferromagnetic chain compound BaNa$_2$Cu(VO$_4$)$_2$. This orthovanadate has a centrosymmetric crystal structure, $C2/c$, where the…

Ni2SiO4, Liebenbergite, is an example of a quasi-one-dimensional magnet made up of frustrated corner sharing triangles of Ni2+ (S = 1) ions that propagate parallel to the b axis. Ni2SiO4 is isostructural with olivine, a common mineral of…

Strongly Correlated Electrons · Physics 2009-07-10 R H Colman , T Fennell , C Ritter , G Lau , R J Cava , A S Wills

Magnetization of the frustrated $S=1/2$ chain compound LiCuVO$_4$, focusing on high magnetic field phases, is reported. Besides a spin-flop transition and the transition from a planar spiral to a spin modulated structure observed recently,…

Strongly Correlated Electrons · Physics 2011-03-03 L. E. Svistov , T. Fujita , H. Yamaguchi , S. Kimura , K. Omura , A. Prokofiev , A. I. Smirnov , Z. Honda , M. Hagiwara

$\beta$-TeVO$_4$ is a frustrated spin 1/2 zig-zag chain system,where spin-density-wave (SDW), vector chiral (VC)and an exotic dynamic spin-stripe phase compete at low temperatures. Here we use torque magnetometry to study the anisotropy of…

Strongly Correlated Electrons · Physics 2020-07-16 M. Herak , N. Novosel , M. Dragičević , Thierry Guizouarn , Olivier Cador , Helmuth Berger , Matej Pregelj , Andrej Zorko , Denis Arčon

Using Monte Carlo techniques, we study a three-orbital CuO$_2$ spin-fermion model for copper-based high critical temperature superconductors that captures the charge-transfer properties of these compounds. Our studies reveal the presence of…

Superconductivity · Physics 2019-01-11 Mostafa Sherif Derbala Aly Hussein , Elbio Dagotto , Adriana Moreo

We investigate magnetic properties of an $S$=1/2 quasi-one dimensional organic antiferromagnet, D-F$_{5}$PNN using magnetization measurements taken at temperatures as low as 0.5 K. Three distinct phases were observed consisting of uniform,…

A quasi-one dimensional magnetism was discovered in the post-perovskite CaRuO3 (Ru4+: 4d4, Cmcm), which is iso-compositional with the perovskite CaRuO3 (Pbnm). An antiferromagnetic spin-chain function with -J/kB = 350 K well reproduces the…

Strongly Correlated Electrons · Physics 2015-05-27 Y. Shirako , H. Satsukawa , X. X. Wang , J. J. Li , Y. F. Guo , M. Arai , K. Yamaura , M. Yoshida , H. Kojitani , T. Katsumata , Y. Inaguma , K. Hiraki , T. Takahashi , M. Akaogi