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Related papers: Magnetic Anisotropy and Orbital Ordering in Ca$_2$…

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We report on extensive elastic neutron scattering to determine the wave vector of the magnetic order in CeCu_{6-x}Au_x single crystals for x > 0.1. For all values of x investigated (0.2, 0.3, 0.5, 1.0) we find long-range incommensurate…

Strongly Correlated Electrons · Physics 2007-05-23 H. v. Löhneysen , A. Neubert , A. Schröder , O. Stockert , U. Tutsch , M. Loewenhaupt , A. Rosch , P. Wölfle

We present the results of a systematic x-ray scattering study of the charge and orbital ordering in the manganite series Pr$_{1-x}$Ca$_x$MnO$_3$ with $x$=0.25, 0.4 and 0.5. The temperature dependence of the scattering at the charge and…

Strongly Correlated Electrons · Physics 2009-10-31 M. v. Zimmermann , C. S. Nelson , J. P. Hill , Doon Gibbs , M. Blume , D. Casa , B. Keimer , Y. Murakami , C. -C. Kao , C. Venkataraman , T. Gog , Y. Tomioka , Y. Tokura

We analyze resonant inelastic x-ray scattering (RIXS) at the Cu K edge in a typical orbital-ordered compound KCuF3 on the basis of a microscopic theory. Spectral shape and its dependence on polarization direction and momentum transfer of…

Strongly Correlated Electrons · Physics 2014-06-20 Takuji Nomura

In divalent Eu systems, the 4f local moment has a pure spin state J=S=7/2. Although the absence of orbital moment precludes crystal electric field effects, we report a sizeable magnetic anisotropy in single crystals of EuRh2Si2. We observed…

Materials Science · Physics 2019-01-23 Silvia Seiro , Christoph Geibel

Hexagonal alpha-Ru trichloride single crystals exhibit a strong magnetic anisotropy and we show that upon applying fields up to 14 T in the honeycomb plane the successive magnetic order at T1 = 14 K and T2 = 8 K could be completely…

Strongly Correlated Electrons · Physics 2015-06-02 M. Majumder , M. Schmidt , H. Rosner , A. A. Tsirlin , H. Yasuoka , M. Baenitz

We have employed the x-ray resonant magnetic scattering (XRMS) technique at the Ru $L_2$ edge of the Ba(Fe$_{1-x}$Ru$_x$)$_2$As$_2$ ($x = 0.205$) superconductor. We show that pronounced resonance enhancements at the Ru $L_2$ edge are…

We report the study of magnetic and orbital order in Pr$_{0.5}$Ca$_{0.5}$MnO$_3$ epitaxial thin films grown on (LaAlO$_3$)$_{0.3}$-(SrAl$_{0.5}$Ta$_{0.5}$O$_3$)$_{0.7}$ (LSAT) (011)$_c$. In a new experimental approach, the polarization and…

Strongly Correlated Electrons · Physics 2014-03-07 H. Wadati , J. Geck , E. Schierle , R. Sutarto , F. He , D. G. Hawthorn , M. Nakamura , M. Kawasaki , Y. Tokura , G. A. Sawatzky

We study long wavelength magnetic excitations in lightly doped La_{2-x}Sr_{x}CuO_{4} (x < 0.03) detwinned crystals. The lowest energy magnetic anisotropy induced gap can be understood in terms of the antisymmetric spin interaction inside…

Strongly Correlated Electrons · Physics 2009-11-10 A. Gozar , B. S. Dennis , G. Blumberg , Seiki Komiya , Yoichi Ando

In a recent published paper [Phys. Rev. B 64, 195133 (2001)], Zimmermann et al. present a systematic x-ray scattering study of charge and orbital ordering phenomena in the Pr1-xCaxMnO3 series with x= 0.25, 0.4 and 0.5. They propose that for…

Strongly Correlated Electrons · Physics 2009-11-10 Joaquin Garcia , Gloria Subias

We investigated the electronic and magnetic properties of the pyrochlore oxide Cd$_2$Os$_2$O$_7$ using the density-functional theory plus on-site repulsion ($U$) method, and depict the ground-state phase diagram with respect to $U$. We…

Strongly Correlated Electrons · Physics 2012-06-15 Hiroshi Shinaoka , Takashi Miyake , Shoji Ishibashi

Resistivity, magnetic susceptibility, neutron scattering and x-ray crystallography measurements were used to study the evolution of magnetic order and crystallographic structure in single-crystal samples of the Ba1-xSrxFe2As2 and…

Superconductivity · Physics 2012-09-06 K. Kirshenbaum , N. P. Butch , S. R. Saha , P. Y. Zavalij , B. G. Ueland , J. W. Lynn , J. Paglione

The emerging altermagnetic RuO2 with both compensated magnetic moments and broken time-reversal symmetry possesses nontrivial magneto-electronic responses and nonrelativistic spin currents, which are closely related to magnetic easy axis.…

Materials Science · Physics 2024-12-24 Yi-Chi Zhang , Hua Bai , Chong Chen , Lei Han , Shi-Xuan Liang , Rui-Yue Chu , Jian-Kun Dai , Feng Pan , Cheng Song

We report the first direct resonant soft x-ray scattering observations of orbital ordering. We have studied the low temperature phase of La$_{0.5}$Sr$_{1.5}$MnO$_4$, a compound that displays charge and orbital ordering. Previous claims of…

Strongly Correlated Electrons · Physics 2009-11-10 S. B. Wilkins , P. D. Spencer , P. D. Hatton , S. P. Collins , M. D. Roper , D. Prabhakaran , A. T. Boothroyd

Magneto-structural phase transitions in Ba1-xAxFe2As2 (A = K, Na) materials are discussed for both magnetically and orbitally driven mechanisms, using a symmetry analysis formulated within the Landau theory of phase transitions. Both…

Strongly Correlated Electrons · Physics 2014-12-24 D. D. Khalyavin , S. W. Lovesey , P. Manuel , F. Kruger , S. Rosenkranz , J. M. Allred , O. Chmaissem , R. Osborn

We have performed a quantitative analysis of recent resonant x-ray scattering experiments carried out in the antiferromagnetic phase of V$_2$O$_3$ by means of numerical ab-initio simulations. In order to treat magnetic effects, we have…

Strongly Correlated Electrons · Physics 2025-04-14 Y. Joly , S. Di Matteo , C. R. Natoli

We calculate the orbital magnetization of 822 two-dimensional magnetic materials from the Computational 2D Materials Database (C2DB). For compounds containing 5$d$ elements we find orbital moments of the order of 0.3-0.5 $\mu_\mathrm{B}$,…

Materials Science · Physics 2024-11-11 Martin Ovesen , Thomas Olsen

In intercalated transition metal dichalcogenide $Fe_xTaS_2$ (0.2 $\leq$ x $\leq$ 0.4) single crystals, large magnetic anisotropy is observed. Transport property measurements indicate that heavy Fe-doping leads to a large anisotropy of…

Strongly Correlated Electrons · Physics 2017-05-10 G. Wu , B. L. Kang , Y. L. Li , T. Wu , N. Z. Wang , X. G. Luo , Z. Sun , L. J. Zou , X. H. Chen

We investigated the electronic response of the quasi-two-dimensional spin gap compound La4Ru2O10 using optical spectroscopy. We observed drastic changes in the optical spectra as the temperature decreased, resulting in anisotropy in the…

Strongly Correlated Electrons · Physics 2009-11-13 S. J. Moon , W. S. Choi , S. J. Kim , Y. S. Lee , P. G. Khalifah , D. Mandrus , T. W. Noh

Ca3Ru2O7 with a Mott-like transition at 48 K features different in-plane anisotropies of magnetization and magnetoresistance. Applying magnetic field along the magnetic easy-axis precipitates a spin-polarized state via a first-order…

Strongly Correlated Electrons · Physics 2009-11-10 G. Cao , L. Balicas , X. N. Lin , S. Chikara , V. Duairaj , E. Elhami , J. W. Brill , R. C. Rai

The article discusses selected properties of the non- and superconducting polycrystalline samples of RuSr2GdCu2O8 and comments the consequences of introducing insignificant sub-stoichiometry of Ru into the nominal formula. The…

Superconductivity · Physics 2010-04-12 Piotr W. Klamut , Tomasz Plackowski