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Neutron diffraction studies have been carried out in the applied magnetic field H(//[011]) on a single crystal of pyrochlore ferromagnet Nd2Mo2O7, whose Hall resistivity(r_H) has been reported to have quite unusual magnetic field (H)- and…

Strongly Correlated Electrons · Physics 2009-11-07 Yukio Yasui , Satoshi Iikubo , Hiroshi Harashina , Taketomo Kageyama , Masafumi Ito , Masatoshi Sato , Kazuhisa Kakurai

We report magnetization data for several titanium pyrochlore systems measured down to 0.5 K. The measurements, performed on single crystal samples in fields of up to 7 T, have captured the essential elements of the previously reported phase…

Strongly Correlated Electrons · Physics 2014-08-18 O. A. Petrenko , M. R. Lees , G. Balakrishnan

The ground-state magnetic structure of EuNi$_{2}$As$_{2}$ was investigated by single-crystal neutron diffraction. At base temperature, the Eu$^{2+}$ moments are found to form an incommensurate antiferromagnetic spiral-like structure with a…

Strongly Correlated Electrons · Physics 2019-01-30 W. T. Jin , N. Qureshi , Z. Bukowski , Y. Xiao , S. Nandi , M. Babij , Z. Fu , Y. Su , Th. Brückel

The dielectric behavior of the single crystals of the spin-chain system Ca3Co2O6, undergoing geometrically frustrated antiferromagnetic ordering below 25 K, has been investigated as a function of temperature and magnetic field (H) and…

Materials Science · Physics 2016-03-17 Tathamay Basu , Kartik K. Iyer , P. L. Paulose , E. V. Sampathkumaran

We present an extensive powder and single-crystal neutron scattering investigation of the crystallographic structure and magnetic order of the frustrated metallic $f$-electron magnet UNi$_4$B. We carry out a full refinement of the…

Strongly Correlated Electrons · Physics 2021-06-02 J. Willwater , S. Süllow , M. Reehuis , R. Feyerherm , H. Amitsuka , B. Ouladdiaf , E. Suard , M. Klicpera , M. Vališka , J. Pospíšil , V. Sechovský

We report synchrotron radiation diffraction and muon spin rotation (muSR) measurements on the frustrated pyrochlore magnet Tb2Ti2O7. The powder diffraction study of a crushed crystal fragment does not reveal any structural change down to 4…

Strongly Correlated Electrons · Physics 2014-12-22 P. Dalmas de Reotier , A. Yaouanc , A. Bertin , C. Marin , S. Vanishri , D. Sheptyakov , A. Cervellino , B. Roessli , C. Baines

In the pyrochlore iridates, \textit{R}$_{2}$Ir$_{2}$O$_{7}$ (\textit{R} = Lanthanide, Y), determination of the magnetic structure of the iridium moments remains an outstanding problem despite the role this is expected to play in the…

Strongly Correlated Electrons · Physics 2014-06-23 Steven M. Disseler

Magnetism of ruthernium pyrochlore oxides A2Ru2O7 (A = Hg, Cd, Ca), whose electronic properties within a localized ion picture are characterized by non-degenerate t2g orbitals (Ru5+, 4d3) and thereby subject to geometrical frustration, has…

Strongly Correlated Electrons · Physics 2015-03-17 M. Miyazaki , R. Kadono , K. H. Satoh , M. Hiraishi , S. Takeshita , A. Koda , A. Yamamoto , H. Takagi

The complex perovskite Pb2CoTeO6 (PCTO) has been prepared as polycrystalline powders by solid state reaction route, and the crystal structure and magnetic properties have been investigated using a combination of X-ray and neutron powder…

Materials Science · Physics 2010-12-01 S. A. Ivanov , P. Nordblad , R. Mathieu , R. Tellgren , C. Ritter

We report a detailed study of structural and magnetic properties of the pyrochlore-type (Bi2-xPrx)Ru2O7 series. Eleven compositions with 0 <= x <= 2 were prepared by solid state reaction at 1050 degrees C and found to form a solid solution…

Materials Science · Physics 2008-12-16 Siwar Zouari , Rafik Ballou , Abdelwaheb Cheikh-Rouhou , Pierre Strobel

We report the crystal structure of Ba$_2$La$_2$CoTe$_2$O$_{12}$ determined by Rietveld analysis using X-ray powder diffraction data. It was found from magnetic measurements that Ba$_2$La$_2$CoTe$_2$O$_{12}$ can be described as a spin-1\2…

Strongly Correlated Electrons · Physics 2018-11-07 Yuki Kojima , Masari Watanabe , Nobuyuki Kurita , Hidekazu Tanaka , Akira Matsuo , Koichi Kindo , Maxim Avdeev

In this paper we have studied, by means of high-resolution neutron powder diffraction and magnetic susceptibility, the structural and magnetic features of selected samples of the HoBaCo2O5+delta layered cobaltite in the low oxygen content…

Materials Science · Physics 2009-11-13 Lorenzo Malavasi , Yuri Diaz-Fernandez , M. Cristina Mozzati , Clemens Ritter

We present the results of susceptibility \chi(T) and magnetisation M(H) measurements performed on single crystal samples of the rare-earth oxides SrLn2O4 (Ln = Er, Dy and Ho). The measurements reveal the presence of magnetic ordering…

Strongly Correlated Electrons · Physics 2012-01-17 Thomas J. Hayes , Olga Young , Geetha Balakrishnan , Oleg A. Petrenko

We present a parametric study of the diffuse magnetic scattering at (1/2,1/2,1/2) positions in reciprocal space, ascribed to a frozen antiferromagnetic spin ice state in single crystalline Tb2Ti2O7. Our high-resolution neutron scattering…

Strongly Correlated Electrons · Physics 2015-06-18 K. Fritsch , E. Kermarrec , K. A. Ross , Y. Qiu , J. R. D. Copley , D. Pomaranski , J. B. Kycia , H. A. Dabkowska , B. D. Gaulin

Electrons in the pyrochore iridates experience a large interaction energy in addition to a strong spin-orbit interaction. Both features make the iridates promising for realizing novel states such as the Topological Mott Insulator. The…

Strongly Correlated Electrons · Physics 2017-09-21 Tian Liang , Timothy H. Hsieh , Jun J. Ishikawa , Satoru Nakatsuji , Liang Fu , N. P. Ong

Single crystals of EuPd$_3$Si$_2$ were grown using a high-temperature EuPd-flux method. The material was structurally and chemically characterized by single-crystal x-ray diffraction, powder x-ray diffraction, Laue method and…

Strongly Correlated Electrons · Physics 2026-02-19 Michelle Ocker , Franziska Walther , Nour Maraytta , Matthieu Le Tacon , Michael Merz , Cornelius Krellner , Kristin Kliemt

For temperatures T well above the ordering temperature T*=3.0+-0.2K the magnetic properties of the metal-organic material Mn[C10H6(OH)(COO)]2x2H20 built from Mn^2+ ions and 3-hydroxy-2-naphthoic anions can be described by a S=5/2 quantum…

We present magnetization and Hall effect measurements on the pyrochlore iridate Nd2Ir2O7. Previous muon spin rotation measurements have shown that the system undergoes an unusual transition at T$_M$ = 110 K into a magnetic phase lacking…

Strongly Correlated Electrons · Physics 2015-06-12 S. M. Disseler , S. R. Giblin , Chetan Dhital , K. C. Lukas , Stephen D. Wilson , M. J. Graf

We report muon spin rotation ($\mu$SR) and neutron diffraction on the rare-earth based magnets (Mo$_{2/3}$RE$_{1/3}$)$_2$AlC, also predicted as parent materials for 2D derivatives, where RE = Nd, Gd (only ($\mu$SR), Tb, Dy, Ho and Er. By…

The thermodynamic and electronic-transport properties of trigonal EuMg2Bi2 in ab-plane magnetic fields Hx and the A-type antiferromagnetic structure have recently been reported. At a temperature of 1.8 K < TN, the Eu magnetic moments with…

Strongly Correlated Electrons · Physics 2022-12-05 Santanu Pakhira , Yongbin Lee , Liqin Ke , D. C. Johnston