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The structural, elastic, magnetic properties, as well as electronic structure and chemical bonding picture of new oxide 3d1-perovskite BaVO3, recently synthesized, were systematically investigated involving the first-principles FLAPW-GGA…

Materials Science · Physics 2019-04-18 V. V. Bannikov

Polar magnetic oxide HoCrWO$_6$ is synthesized and its crystal structure, magnetic structure, and thermodynamic properties are investigated. HoCrWO$_6$ forms the polar crystal structure (space group Pna2$_1$ (#33)) due to the cation…

Materials Science · Physics 2020-07-20 C. Dhital , D. Pham , T. Lawal , C. Bucholz , A. Poyraz , Q. Zhang , R. Nepal , R. Jin , R. Rai

Inorganic lead-free double perovskites represent particular interest as non-toxic and stable material platform for optoelectronic applications. Here, we employ Brillouin light scattering spectroscopy to investigate the elastic properties…

Through the utilization of element-resolved polarized x-ray probes, the electronic and magnetic state of an artificial La2FeCrO6 double perovskite were explored. Applying unit-cell level control of thin film growth on SrTiO3 (111), the rock…

Strongly Correlated Electrons · Physics 2015-05-18 Benjamin Gray , Ho Nyung Lee , Jian Liu , J. Chakhalian , J. W. Freeland

Using the full-potential linearized-augmented-plane-wave (FLAPW) method, we have analyzed systematically the trends in the structural and electronic properties of the 3d and 4d transition-metal oxides SrMO_3 (M = Ti, V, Zr and Nb). The…

Materials Science · Physics 2016-08-31 I. R. Shein , V. L. Kozhevnikov , A. L. Ivanovskii

Using density functional theory (DFT)-based calculations, we propose a family of metastable, as-yet unmade V5+ and Cr6+ double perovskite compounds with low band gaps spanning much of the visible region of the solar spectrum. Through…

Materials Science · Physics 2012-11-07 Robert F. Berger , Jeffrey B. Neaton

We report on the unconventional magnetism in the cubic B-site ordered double perovskite Ba2YMoO6, using AC and DC magnetic susceptibility, heat capacity and muSR. No magnetic order is observed down to 2 K while the Weiss temperature is ~…

Strongly Correlated Electrons · Physics 2010-05-03 M. A. de Vries , A. C. McLaughlin , J-W. G. Bos

First-principles electronic structure calculations have been performed for the double perovskite Bi$_2$CoMnO$_6$ in its non-centrosymmetric polar state using generalized gradient approximation plus Hubbard U approach. We find that while Co…

Materials Science · Physics 2010-10-25 Satadeep Bhattacharjee , Olle Eriksson , Biplab Sanyal

Under normal conditions, bulk crystals of BiScO$_3$ , BiCrO$_3$, BiMnO$_3$, BiFeO$_3$, and BiCoO$_3$ present three very different variations of the perovskite structure: an antipolar phase, a rhombohedral phase with a large polarization…

Materials Science · Physics 2018-11-07 Akansha Singh , Viveka N. Singh , Enric Canadell , Jorge Íñiguez , Oswaldo Diéguez

Perovskite chalcogenides are gaining substantial interest as an emerging class of semiconductors for optoelectronic applications. High quality samples are of vital importance to examine their inherent physical properties. We report the…

Hybrid transition metal oxides continue to attract attention due to their multiple degrees of freedom ($e.g.$, lattice, charge, spin, and orbital) and versatile properties. Here we investigate the magnetic and electronic properties of the…

Strongly Correlated Electrons · Physics 2022-05-17 Ke Yang , Wenjing Xu , Di Lu , Yuxuan Zhou , Lu Liu , Yaozhenghang Ma , Guangyu Wang , Hua Wu

We report a first-principles study of Bi-based 3$d$-5$d$ ordered double perovskite oxides (A$_2$BB$^\prime$O$_6$) with a 3$d$ atom (Fe) at the B-site and 5$d$ atoms (Re,Ir) at the B$^\prime$-site while keeping highly polarizable ions…

Materials Science · Physics 2019-12-25 Paresh C. Rout , Varadharajan Srinivasan

This paper presents the phase stability, opto-electronic and thermo-electric behavior of X2AuYZ6 (X = Cs, Rb; Z = Cl/Br/I) double perovskite halides by using the DFT method. The compounds belong to the cubic arrangement and are verified by…

Materials Science · Physics 2024-04-25 S. Mahmud , M. A. Ali , M. M. Hossain , M. M. Uddin

Using first-principles methods, we predict the energy landscape and ferroelectric states of double perovskites of the form AA$'$BB$'$O$_6$ in which the atoms on both the A and B sites are arranged in rock-salt order. While we are not aware…

Materials Science · Physics 2011-04-25 Anindya Roy , David Vanderbilt

The ordering of cations in the B sublattice remains a challenging issue in double perovskites. In this work, a combined experimental and theoretical approach was employed to investigate the Co/Nb distribution in Ca$_2$CoNbO$_6$ and its…

Double-perovskite A2BB'O6 oxides with magnetic B and B' ions and E*-type antiferromagnetic order (E*-AFM, i.e. the ++-- structure) are believed to exhibit promising multiferroic properties, and Y2CoMnO6 (YCMO) is one candidate in this…

Materials Science · Physics 2015-10-28 C. Y. Ma , S. Dong , P. X. Zhou , Z. Z. Du , M. F. Liu , H. M. Liu , Z. B. Yan , J. M. Liu

BaBiO$_3$ is a mixed-valence perovskite which escapes the metallic state through a Bi valence (and Bi-O bond) disproportionation or CDW distortion, resulting in a semiconductor with a gap of 0.8 eV at zero pressure. The evolution of…

Materials Science · Physics 2017-07-11 Roman Martoňák , Davide Ceresoli , Tomoko Kagayama , Yusuke Matsuda , Yuh Yamada , Erio Tosatti

In this work we investigated the phase formation and structural ordering of Ba$_{3}$B$^{'}$Nb$_{2}$O$_{9}$ (B$^{'}$ $=$ Ca and Zn) perovskite powders obtained by a modified polymeric precursor route using X-ray powder diffraction and Raman…

The electronic structure and magnetism of Sr$_2$CeIrO$_6$, an Ir-based double perovskite system has been investigated using first-principles calculations. We found that a strong spin-orbit coupling dictate the electronic and magnetic…

Strongly Correlated Electrons · Physics 2013-01-29 S. K. Panda , I. Dasgupta

The electronic structure of double perovskite Pr2MnNiO6 is studied using core x-ray photoelectron spectroscopy and x-ray absorption spectroscopy. The 2p x-ray absorption spectra show that Mn and Ni are in 2+ and 4+ states respectively.…

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