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相关论文: Magnetism in Re-based ferrimagnetic double perovsk…

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Double-perovskite oxides that contain both 3d and 5d transition metal elements have attracted growing interest as they provide a model system to study the interplay of strong electron interaction and large spin-orbit coupling (SOC). Here,…

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

We report on atomic ordering of B-site transition-metals and magnetic properties of epitaxial La2CrFeO6 double-perovskite films grown by pulsed-laser deposition under various conditions. The highest ordered sample exhibited a fraction of…

The spin-orbit coupled double perovskite iridate Ba$_2$YIrO$_6$ with $d^4$ occupancy of Ir is considered as a candidate material for a non-magnetic $J=0$ ground state. The issue of existence of such a state in Ba$_2$YIrO$_6$ however has…

强关联电子 · 物理学 2022-12-21 Hermann Schnait , Daniel Bauernfeind , Tanusri Saha-Dasgupta , Markus Aichhorn

In this work, we report the synthesis and investigation of structural, electronic, and magnetic properties of La$_{1.5}$Ca$_{0.5}$(Co$_{0.5}$Fe$_{0.5}$)IrO$_6$. Our polycrystalline sample forms as a single-phase double perovskite in…

The coexistence of the strongly correlated 3$d$ transition metal (TM) atom and the strong spin-orbit coupling (SOC) of 5$d$ TM atom is potential to host exotic physical phenomena. In the present work, we have studied the magnetism resulting…

强关联电子 · 物理学 2020-02-19 Shreemoyee Ganguly , Sayantika Bhowal

The field of double perovskites is now advancing to three magnetic elements on the A, B and B$'$ sites. A series of iridium-based double perovskite compounds, $Ln_2$CoIrO$_6$ ($Ln$ = Eu, Tb, Ho) with three magnetic elements were synthesized…

We report on our investigation on the magnetism of the iridate double perovskite Sr$_2$CoIrO$_6$, a nominally Ir$^{5+}$ Van Vleck $J_{eff}=0$ system. Using x-ray absorption (XAS) and x-ray magnetic circular dichroism (XMCD) spectroscopy at…

We have implemented a systematic LSDA and LSDA+U study of the double perovskites $A_{2}$FeReO$_{6}$ (A=Ba,Sr,Ca) and Sr$_{2}$$M$MoO$_{6}$ (M=Cr,Mn,Fe,Co) for understanding of their intriguing electronic and magnetic properties. The results…

材料科学 · 物理学 2009-11-07 Hua Wu

The Half-Metallic Ferromagnetic behavior of some double perovskites attracts much interest. In this work, we studied the magnetic behavior of the double perovskite Pb2FeReO6. The magnetic atoms are Fe and Re and have the spins S=5/2 and…

材料科学 · 物理学 2020-02-20 S. Mtougui , S. Idrissi , H. Labrim , N. El Mekkaoui , I. El Housni , S. Ziti , R. Khalladi , L. Bahmad

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 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…

强关联电子 · 物理学 2013-01-29 S. K. Panda , I. Dasgupta

Exploring new magnetic materials is essential for finding advantageous functional properties such as magnetoresistance, magnetocaloric effect, spintronic functionality, and multiferroicity. Versatile classes of double perovskite compounds…

强关联电子 · 物理学 2019-05-03 M. K. Kim , J. Y. Moon , S. H. Oh , D. G. Oh , Y. J. Choi , N. Lee

Double perovskite Sr$_2$CrOsO$_6$ is (or is very close to) a realization of a spin-asymmetric semimetallic compensated ferrimagnet, according to first principles calculations. This type of near-half metallic antiferromagnet is an unusual…

材料科学 · 物理学 2008-03-24 K. -W. Lee , W. E. Pickett

Magnetic double perovskite compounds provide a fertile playground to explore interesting electronic and magnetic properties. By complementary macroscopic characterizations, neutron powder diffraction measurements and first-principles…

强关联电子 · 物理学 2024-04-03 Cheng Su , Xu-Tao Zeng , Kaitong Sun , Denis Sheptyakov , Ziyu Chen , Xian-Lei Sheng , Haifeng Li , Wentao Jin

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…

强关联电子 · 物理学 2015-05-18 Benjamin Gray , Ho Nyung Lee , Jian Liu , J. Chakhalian , J. W. Freeland

In this work, we report on the synthesis and magnetic properties of a series of double perovskites Ln$_2$ZnIrO$_6$ with Ln = Nd, Sm, Eu & Gd. These compounds present new examples of the rare case of double perovskites (general formula…

We studied structural and magnetic properties of a series of insulating double perovskite compounds, La$_{2-x}$Sr$_{x}$CuRuO$_{6}$ (0 $\le$ x $\le$ 1), representing doping via \textit{A}-site substitution. The end members…

Here we present a detailed investigation of the Co and Ir local electronic structures in La1.5A0.5CoIrO6 (A = Ba, Ca) compounds in order to unravel the orbital hybridization mechanism in these CoIr-based double perovskites. Our results of…

We report synthesis and magnetization of Sr2RuREO6 (RE/Ru-211O6) with RE = Gd and Eu. Both Gd,Eu/Ru-211O6 are formed in distorted perovskite-type single phase with monoclinic P21/n space group. Magnetization (M/T) measurements exhibited…

强关联电子 · 物理学 2015-06-25 V. P. S. Awana , Rahul Tripaathi , V. K. Sharma , H. Kishan , E. Takayama-Muromachi , and I. Felner