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相关论文: First-principle study on compensated half metallic…

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Double perovskites like Sr$_2$FeMoO$_6$ are materials with half-metallic ground states and ferrimagnetic T$_{\rm{c}}$'s well above room temperature. This paper is the second of our comprehensive theory for half metallic double perovskites.…

We have performed a comprehensive, first-principles high-throughput study of the magnetic properties of halide double perovskites, $Cs_2BB^\prime Cl_6$, with magnetic ions occupying one or both B and B$^\prime$ sites. Our findings indicate…

材料科学 · 物理学 2023-06-16 Utkarsh Singh , Johan Klarbring , Igor A. Abrikosov , Sergei I. Simak

The structural, electronic and magnetic properties of anti-site disordered Sm$ _{2} $NiMnO$ _{6} $ double perovskite has been studied. RE$_{2}$NiMnO$_{6}$ (RE: rare-earth) ordered double perovskite is commonly believed to show two distinct…

材料科学 · 物理学 2025-07-28 S. Majumder , M. Tripathi , P. Rajput , S. N. Jha , R. J. Choudhary , D. M. Phase

Double perovskites containing 4d--4f interactions provide a platform to study complex magnetic phenomena in correlated systems. Here, we investigate the magnetic ground state and quasiparticle excitations of the fascinating double…

Magnetic topological quantum materials have attracted great attention due to their exotic topological quantum physics induced by the interplay among crystalology, magnetism, and topology, which is of profound importance to fundamental…

材料科学 · 物理学 2021-03-02 Xinlei Zhao , Peng-jie Guo , Fengjie Ma , Zhong-Yi Lu

Using the first-principles density functional approach, we investigate Ca$_2$FeOsO$_6$, a material of double perovskite structure synthesized recently. According to the calculations, Ca$_2$FeOsO$_6$ is a ferrimagnetic Mott-insulator…

介观与纳米尺度物理 · 物理学 2017-01-04 Madhav P. Ghimire , Xiao Hu

Magnetic properties of an antiferromagnetic double perovskite oxide Ba2CaReO6, where Re6+ (5d1) ions with large spin-orbit coupling are arranged on the face-centered-cubic lattice, are investigated using pulsed high magnetic field up to 66…

With high-resolution photoemission spectroscopy measurements, the density of states (DOS) near the Fermi level ($E_\mathrm{F}$) of double perovskite Sr$_2$FeMoO$_6$ having different degrees of Fe/Mo antisite disorder has been investigated…

材料科学 · 物理学 2007-07-07 M. Kobayashi , K. Tanaka , A. Fujimori , Sugata Ray , D. D. Sarma

We report the first principle investigations on the structural, electronic, magnetic and ferroelectric properties of a Pb free double perovskite multiferroic Bi2NiTiO6 using density functional theory within the general gradient…

计算物理 · 物理学 2018-05-09 Lokanath Patra , P. Ravindran

We have prepared crystallographically ordered and disorder specimens of the double perovskite, Sr$_2$FeMoO$_6$ and investigated their magnetoresistance behaviour. The extent of ordering between the Fe and Mo sites in the two samples is…

A new series of cubic double perovskites Ba$_2R_{2/3}$TeO$_6$ ($R$ = Y, La, Pr, Nd, Sm-Lu) was synthesized via solid state reaction. The $R^{3+}$ and Te$^{6+}$ ions are ordered on alternating octahedral sites, with the rare earth sites 2/3…

材料科学 · 物理学 2019-03-14 Tai Kong , Robert J. Cava

We present a powder inelastic neutron scattering study of magnetic excitations in Ba$_2$FeReO$_6$, a member of the double perovskite family of materials which exhibit half-metallic behavior and high Curie temperatures. We find clear…

The predicted physical properties of double perovskites have usually been compromised by their intrinsic B-antisite (AS) disorder effect, but the relationship between them is still unclear for the La2MnCoO6 (LMCO) system. This study focuses…

材料科学 · 物理学 2022-08-22 R. C. Sahoo , S. Zhang , Y. Takeuchi , M. Kitamura , K. Horiba , H. Kumigashira , O. Sakata , T. Soma , A. Ohtomo

The double-perovskite A$_2$BB'O$_6$ with heavy transition metal ions on the ordered B' sites is an important family of compounds to study the interplay between electron correlation and spin-orbit coupling (SOC). Here we prepared…

强关联电子 · 物理学 2020-07-01 Shang Gao , Daigorou Hirai , Hajime Sagayama , Hiroyuki Ohsumi , Zenji Hiroi , Taka-hisa Arima

The complex perovskite Ba2CoTeO6 (BCTO) has been synthesised, and the crystal structure and magnetic properties have been investigated using a combination of X-ray and neutron powder diffraction, electron microscopy and dielectric,…

材料科学 · 物理学 2010-12-01 S. A. Ivanov , P. Nordblad , R. Mathieu , R. Tellgren , C. Ritter

Rare earth based cobalt-ruthenium double perovskites A$_2$CoRuO$_6$ (A = La, Pr, Nd and Sm) were synthesized and investigated for their structural and magnetic properties. All the compounds crystallize in the monoclinic $P2_1/n$ structure…

材料科学 · 物理学 2019-07-24 Manjil Das , Prabir Dutta , Saurav Giri , Subham Majumdar

We have studied the electronic and magnetic properties of double perovskites Gd2MgIrO6 by first-principles density functional theory (DFT). Based on the DFT calculations, Gd2MgIrO6 is found to have a ferromagnetic (FM) ground state. The…

材料科学 · 物理学 2016-05-02 M. P. Ghimire , R. K. Thapa

We report here the results of a detailed magnetic, thermodynamic, and neutron powder diffraction (NPD) studies carried out on the double perovskite iridates Pr(2-x)SrxMgIrO6 (x = 0 and 0.5). Temperature dependent bulk DC susceptibility data…

强关联电子 · 物理学 2026-03-24 Abhisek Bandyopadhyay , Debu Das , Dheeraj Kumar Pandey , C. Ritter , D. T. Adroja , Sugata Ray

Commencing from the centrosymmetric MnRMnSbO$_6$ compound, we explore the realm of magnetic polar double-double perovskite oxides characterized by significant ferroelectric polarization. Employing symmetry operations, first-principles…

材料科学 · 物理学 2024-03-11 Monirul Shaikh , Duo Wang , Saurabh Ghosh

The experimental observation of a spin-gap in the antiferromagnetic spin-1/2 compound $CaV_4O_9$ has been attributed to the formation of a plaquette resonating-valence-bond (PRVB) state in the underlying 1/5-depleted square lattice. We…

强关联电子 · 物理学 2016-08-31 Indrani Bose , Asimkumar Ghosh