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With the use of the band structure calculations we demonstrate that previously reported [Nat. Materials {\bf 3}, 48 (2004)] experimental crystal and magnetic structures for NaMn$_7$O$_{12}$ are inconsistent with each other. The optimization…

Strongly Correlated Electrons · Physics 2014-06-06 S. V. Streltsov , D. I. Khomskii

The manganocuprate compound Gd3Ba2Mn2Cu2O12 (Gd-3222) has been synthesized by conventional solid state reaction method and its magnetic behavior has been studied by dc and ac magnetization (M) and heat capacity (C) measurements as a…

The frustrated magnet clinoatacamite, $\gamma$-Cu$_2$(OH)$_3$Cl, is attracting a lot of interest after suggestions that at low temperature it forms an exotic quantum state termed a Valence Bond Solid (VBS) made from dimerised Cu$^{2+}$…

Strongly Correlated Electrons · Physics 2009-07-08 A. S. Wills , T. G. Perring , S. Raymond , B. Fak , J. -Y. Henry , M. Telling

The crystal and magnetic structures of the spinel compounds ZnCr$_2$S$_4$ and ZnCr$_2$Se$_4$ were investigated by high resolution powder synchrotron and neutron diffraction. ZnCr$_2$Se$_4$ exhibits a first order phase transition at $T_N=21$…

Strongly Correlated Electrons · Physics 2009-11-13 F. Yokaichiya , A. Krimmel , V. Tsurkan , I. Margiolaki , P. Thompson , H. N. Bordallo , A. Buchsteiner , N. Stüßer , D. N. Argyriou , A. Loidl

High-entropy spinel oxides provide an excellent platform for investigating entropy-stabilized correlated systems with strong configurational disorder. In this work, we systematically study the temperature evolution of the structural and…

Noncentrosymmetric magnets usually host intriguing magnetic interactions inherent the crystal structure with broken inversion symmetry, which can give rise to rich magnetic behaviors. We report herein the high-pressure synthesis, crystal…

We report the coexistence of lamellar charge-ordered (CO) and charge-disordered (CD) domains, and their dynamical behavior, in La0.23Ca0.77MnO3. Using high resolution transmission electron microscopy (TEM), we show that below Tcd~170K a…

Strongly Correlated Electrons · Physics 2009-11-10 J. Tao , D. Niebieskikwiat , M. B. Salamon , J. M. Zuo

We report nuclear magnetic resonance (NMR) studies in the antiferromagnetic state of the quasi-two-dimensional (CuBr)LaNb2O7. The NMR spectra at zero magnetic field and 4.2 K indicate a unique Cu and Br sites with an internal field of 5.7 T…

Strongly Correlated Electrons · Physics 2017-12-01 M. Yoshida , N. Ogata , M. Takigawa , T. Kitano , H. Kageyama , Y. Ajiro , K. Yoshimura

Co substituted Ni$_{1-x}$Co$_x$Br$_2$ (0 $\leq~x~\leq$ 1) single crystals were synthesized using vapor transport. The physical properties of the crystals were characterized by x-ray powder diffraction, magnetization, and specific heat…

Strongly Correlated Electrons · Physics 2019-04-03 Binod K. Rai , Andrew D. Christianson , David Mandrus , Andrew F. May

We have performed a symmetry analysis of the properties of the recently discovered quasi-one-dimensional compound BaCu_2Si_2O_7. The existence of the unusual spin-reorientation transitions is explained as an effect of the unusually strong…

Strongly Correlated Electrons · Physics 2009-11-07 Vasiliy N. Glazkov , H. -A. Krug von Nidda

High-resolution time-of-flight powder neutron diffraction and high-field magnetization were measured to investigate the magnetic structure and existence of a field-induced magnetic phase transition in the distorted kagome antiferromagnet…

The layered honeycomb magnet $\alpha$-RuCl$_3$ has been suggested to exhibit a field-induced quantum spin liquid state, in which the reported large thermal Hall effect close to the half-quantized value still remains a subject of debate.…

Strongly Correlated Electrons · Physics 2024-06-12 J. A. N. Bruin , R. R. Claus , Y. Matsumoto , J. Nuss , S. Laha , B. V. Lotsch , N. Kurita , H. Tanaka , H. Takagi

Properties of the $\omega$ structure are investigated for 27 transition elements from the viewpoints of thermodynamical and mechanical stability based on first-principles calculations. The thermodynamical stability of the $\omega$ structure…

Materials Science · Physics 2016-04-20 Yuji Ikeda , Isao Tanaka

A caged compound CeOs2Al10, crystallizing in the orthorhombic YbFe2Al10-type structure, undergoes a mysterious phase transition at T_0=29 K. We report the results of electron diffraction, magnetization, and magnetoresistance for single…

Strongly Correlated Electrons · Physics 2015-05-19 Y. Muro , J. Kajino , K. Umeo , K. Nishimoto , R. Tamura , T. Takabatake

Neutron scattering can provide detailed information about the energy and momentum dependence of the magnetic dynamics of materials provided sufficiently large single crystals are available. This requirement has limited the number of rare…

Strongly Correlated Electrons · Physics 2007-05-23 T. E. Mason

CsO2 is a member of the family of alkali superoxides (formula AO2 with A= Na, K, Rb and Cs) that exhibit magnetic behavior arising from open $p$-shell electrons residing on O2- molecules. We use neutron diffraction to solve the crystal and…

Strongly Correlated Electrons · Physics 2023-11-10 R. A. Ewings , M. Reehuis , F. Orlandi , P. Manuel , D. D. Khalyavin , A. S. Gibbs , A. D. Fortes , A. Hoser , A. J. Princep , M. Jansen

Frustrated magnetism continues to attract significant attention due to its potential to host novel quantum many-body phenomena and associated exotic excitations that transcend existing paradigms. Herein, we present our reply to the comment…

Strongly Correlated Electrons · Physics 2026-03-17 J. Khatua , T. Arh , Shashi B. Mishra , H. Luetkens , A. Zorko , B. Sana , M. S. Ramachandra Rao , B. R. K. Nanda , P. Khuntia

The effect of substituting iron and zinc for cobalt in CaBaCo$_4$O$_7$ has been investigated using neutron diffraction and x-ray absorption spectroscopy. The orthorhombic distortion present in the parent compound CaBaCo$_4$O$_7$ decreases…

Materials Science · Physics 2020-09-01 V. Cuartero , J. Blasco , G. Subías , J. García , J. A. Rodríguez-Velamazán , C. Ritter

Neutron powder diffraction (NPD) study of \textit{Ln}MnSbO (\textit{Ln }$=$ La or Ce) reveals differences between the magnetic ground state of the two compounds due to the strong Ce-Mn coupling compared to La-Mn. The two compounds adopt the…

Strongly Correlated Electrons · Physics 2016-04-20 Qiang Zhang , C. M. N. Kumar , Wei Tian , Kevin W. Dennis , Alan I. Goldman , David Vaknin

The local atomic disorder and the electronic structure in the environment of manganese atoms in LaMnO_3 has been studied by x-ray absorption spectroscopy, over a temperature range (300K to 870K) covering the orbital ordering transition…

Strongly Correlated Electrons · Physics 2009-11-10 Raquel A. Souza , Narcizo M. Souza-Neto , Aline Y. Ramos , Helio C. N. Tolentino , Eduardo Granado