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The layered crystal structure of Cr2Ge2Te6 shows ferromagnetic ordering at the two-dimensional limit, which holds promise for spintronic applications. However, external voltage pulses can trigger amorphization of the material in nanoscale…

New intercalation compounds Cr$_x$ZrTe$_2$ were synthesized in the Cr concentration range of x=0-0.3. A thorough study of the crystal and electronic structure has been performed. It was found that there is competition in the distribution of…

The iron arsenide Sr2CrO3FeAs with the tetragonal Sr2GaO3CuS-type structure was synthesized and its crystal structure re-determined by neutron powder diffraction. In contrast to previous X-ray crystallographic studies, a mixed occupancy of…

Superconductivity · Physics 2010-02-24 Marcus Tegel , Franziska Hummel , Yixi Su , Tapan Chatterji , Michela Brunelli , Dirk Johrendt

We report the structural and magnetic properties of a new class of cobaltates with the chemical formula (BaSr)4-xLa2xCo4O15 (x = 0, 0.5 and 1). These compounds crystallize in a hexagonal structure in which cobalt ions are distributed among…

Strongly Correlated Electrons · Physics 2015-06-11 V. O. Garlea , R. Jin , E. Garlea , G. Ehlers , E. Mamontov , D. B. Myers , F. Xie , R. Custelcean

NMR studies have been carried out on a single crystal sample of TbBaCo2O5.5 with the oxygen-deficient perovskite structure. We have also carried out neutron diffraction studies and added new results to our previously published data. By…

Strongly Correlated Electrons · Physics 2009-11-11 Minoru Soda , Yukio Yasui , Yoshiaki Kobayashi , Toshiaki Fujita , Masatoshi Sato , Kazuhisa Kakurai

We present a microscopic study of the electronic and magnetic properties of the newly synthesized Cu(II)-spin tetrahedron-based Cu4Te5O12Cl4 compound based on Density Functional calculations and on ab initio-derived effective models. In…

Strongly Correlated Electrons · Physics 2009-11-11 Badiur Rahaman , Harald O. Jeschke , Roser Valenti , T. Saha-Dasgupta

A new 3d-5d hybridized quadruple perovskite oxide, CaCu3Mn2Ir2O12, was synthesized by high-pressure and high-temperature methods. The Rietveld structure analysis reveals that the compound crystallizes in an AA'3B4O12-type perovskite…

New Zn1.5Co1.5B7O13Br boracite crystals were grown by chemical transport reactions in quartz ampoules, at a temperature of 1173 K. The crystal structure was characterized by X-ray diffraction. The crystals present an orthorhombic structure…

The magnetic contribution of the Co3+ ions in Co3BO5 has been investigated using the Co (K-edge) XMCD, dc magnetic susceptibility, and heat capacity measurements. The crystal structure of Co3BO5 single crystal has been solved in detail at…

Polycrystalline Ba4NbIr3O12 has recently been shown to be a promising spin liquid candidate. We report an easy and reliable method to grow millimeter-sized single crystals of this trimer based spin liquid candidate material with the actual…

Materials Science · Physics 2020-04-24 Gohil S. Thakur , Sumanta Chattopadhyay , Thomas Doert , T. Herrmannsdörfer , Claudia Felser

We report the structural and magnetic properties of the 4}\textit{\textcolor{black}{d }}\textcolor{black}{(M = Rh) based and 5}\textit{\textcolor{black}{d }}\textcolor{black}{(M = Ir) based systems Ba$_{3}$M$_{x}$Ti$_{3-x}$O$_{9}$…

Strongly Correlated Electrons · Physics 2017-08-03 R. Kumar , D. Sheptyakov , P. Khuntia , K. Rolfs , P. G. Freeman , H. M. Rønnow , Tusharkanti Dey , M. Baenitz , A. V. Mahajan

The crystal structure of Ca_{2-x}Sr_xRuO_4 with 0.2 < x < 1.0 has been studied by diffraction techniques and by high resolution capacitance dilatometry as a function of temperature and magnetic field. Upon cooling in zero magnetic field…

We report the growth of large high quality crystals of the frustrated magnet, Pr2Zr2O7 by the floating zone technique. Several crystals have been produced starting with varying levels of excess of Pr6O11 to compensate for the loss of Pr2O3…

Materials Science · Physics 2016-11-09 M. Ciomaga Hatnean , C. Decorse , M. R. Lees , O. A. Petrenko , D. S. Keeble , G. Balakrishnan

We investigated the crystal and magnetic structures of the spin-1/2 frustrated antiferromagnet Cu3Mo2O9 in which the spin system consists of antiferromagnetic chains and dimers. The space group at room temperature has been reported to be…

Co3V2O8 (CVO) has a geometrically frustrated magnetic lattice, a Kagome staircase. The crystal structure consists of two inequivalent Co sites, one-dimensional chains of Co(2) spine sites, linked by Co(1) cross-tie sites. Neutron powder…

Strongly Correlated Electrons · Physics 2009-11-11 Y. Chen , J. W. Lynn , Q. Huang , F. M. Woodward , T. Yildirim , G. Lawes , A. P. Ramirez , N. Rogado , R. J. Cava , A. Aharony , O. Entin-Wohlman , A. B. Harris

YBaCo4O7 belongs to a new class of geometrically frustrated magnets like the pyrochlores, in which Co-spins occupy corners of tetrahedra. The structure can be viewed as an alternating stacking of Kagome and triangular layers. Exactly half…

Materials Science · Physics 2009-11-11 L. C. Chapon , P. G. Radaelli , H. Zheng , J. F. Mitchell

We report the synthesis and properties of a new layered material, CrGe1-xSe3+y. The crystal structure was determined by using single crystal x-ray diffraction and transmission electron microscopy. CrGe1-xSe3+y crystallizes with a space…

Materials Science · Physics 2026-01-12 Jeremy G. Philbrick , Chaoguo Wang , Xin Gui , Tai Kong

The structural and magnetic properties of a spin-$\frac{1}{2}$ averievite (CsBr)Cu$_5$V$_2$O$_{10}$ are investigated by means of temperature-dependent x-ray diffraction, magnetization, heat capacity, and $^{51}$V nuclear magnetic resonance…

Materials Science · Physics 2024-11-12 S. Guchhait , D. V. Ambika , S. Mohanty , Y. Furukawa , R. Nath

We have successfully synthesized S = 1/2 kagome antiferromagnets MCu3(OH)6Cl2 (M = Ni and Co) by hydrothermal method with rotating pressure vessel. Structural characterization shows that both compounds have the similar crystal structure as…

Strongly Correlated Electrons · Physics 2012-12-10 Yue-sheng Li , Qing-ming Zhang

Y3Cu9(OH)19Cl8 realizes an original anisotropic kagome model hosting a rich magnetic phase diagram [M. Hering et al, npj Computational Materials 8, 1 (2022)]. We present an improved synthesis of large phase-pure single crystals via an…