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相关论文: Electronic Structure and Magnetic Properties of Ir…

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Depositing disordered Al on top of SrTiO$_3$ is a cheap and easy way to create a two-dimensional electron system in the SrTiO$_3$ surface layers. To facilitate future device applications we passivate the heterostructure by a disordered…

The competition between spin-orbit coupling, bandwidth ($W$) and electron-electron interaction ($U$) makes iridates highly susceptible to small external perturbations, which can trigger the onset of novel types of electronic and magnetic…

强关联电子 · 物理学 2017-03-15 Bongjae Kim , Peitao Liu , Cesare Franchini

Electronic structures of three superconducting rare-earth iron silicides (Lu;Y;Sc)2Fe3Si5 and non-superconducting Lu2Ru3Si5, adopting a tetragonal crystal structure (P4/mnc), have been calculated employing the full-potential local-orbital…

超导电性 · 物理学 2014-09-08 M. Samsel-Czekała , M. J. Winiarski

The interface electronic structure of correlated LaTiO$_3$/SrTiO$_3$ superlattices is investigated by means of the charge self-consistent combination of the local density approximation (LDA) to density functional theory (DFT) with dynamical…

强关联电子 · 物理学 2013-06-07 Frank Lechermann , Lewin Boehnke , Daniel Grieger

It has been recently demonstrated that the magnetic state of FeRh can be controlled by electric fields in FeRh/BaTiO$_{\text{3}}$ heterostructures [R.O. Cherifi et al. Nature Mater. 13, 345 (2014)]. Voltage-controlled changes in the…

I study the electronic structure and magnetism of postperovskite CaIrO$_3$ using first-principles calculations. The density functional calculations within the local density approximation without the combined effect of spin-orbit coupling…

强关联电子 · 物理学 2012-01-30 Alaska Subedi

Ruthenium-based perovskite systems are attractive because their Structural, electronic and magnetic properties can be systematically engineered. SrRuO$_3$/SrTiO$_3$ superlattice, with its period consisting of one unit cell each, is very…

强关联电子 · 物理学 2012-10-15 Mingqiang Gu , Qiyun Xie , Xuan Shen , Rubin Xie , Jianli Wang , Gang Tang , Di Wu , G. P. Zhang , X. S. Wu

We use resonant soft x-ray scattering to study electronic reconstruction at the interface between the Mott insulator LaMnO3 and the "band" insulator SrMnO3. Superlattices of these two insulators were shown previously to have both…

The orthorhombic perovskite SrIrO3 is a semimetal, an intriguing exception in iridates where the strong spin-orbit interaction coupled with electron correlations tends to impose a novel insulating state. We report results of our…

强关联电子 · 物理学 2016-07-06 H. Zheng , J. Terzic , Feng Ye , X. G. Wan , D. Wang , Jinchen Wang , Xiaoping Wang , P. Schlottmann , S. J. Yuan , G. Cao

The electronic structures of R2Fe3Si5 (where R = Lu, Tm, Er, Tb, Yb) intermetallics have been calculated from first principles in local-spin density (LSDA) and LSDA + U approaches. The majority of rare-earth iron silicides, except for the…

超导电性 · 物理学 2014-09-08 M. J. Winiarski , M. Samsel-Czekała

We have performed density functional calculations of the electronic structure and lattice dynamics of the binary skutterudite FeSb$_{3}$. We find that the ground state of FeSb$_{3}$ is a near semi-metallic ferromagnet with $T_{c}=175$~K.…

材料科学 · 物理学 2015-01-26 Mikael Råsander , Lars Bergqvist , Anna Delin

The electronic structure of quasi-one-dimensional superconductor K$_2$Cr$_3$As$_3$ is studied through systematic first-principles calculations. The ground state of K$_2$Cr$_3$As$_3$ is paramagnetic but very close to a ferromagnetic…

超导电性 · 物理学 2015-11-03 Hao Jiang , Guanghan Cao , Chao Cao

We study the magnetic structure of the (LaMnO$_3$)$_{2n}$/(SrMnO$_3$)$_n$ superlattices from density-functional calculations. In agreement with the experiments, we find that the magnetism changes with the layer thickness `n'. The reason for…

材料科学 · 物理学 2010-03-10 B. R. K. Nanda , S. Satpathy

SrRuO$_3$ (SRO) films are known to exhibit insulating behavior as their thickness approaches four unit cells. We employ electron energy$-$loss (EEL) spectroscopy to probe the spatially resolved electronic structures of both insulating and…

强关联电子 · 物理学 2017-12-15 Subeen Pang , Yoonkoo Kim , Yeong Jae Shin , Byungmin Sohn , SeungYong Lee , Tae Won Noh , Miyoung Kim

In this paper, we investigate the ground state properties of the $\rm{RMnO}_3/\rm{AMnO}_3$ ($\rm{RMO/AMO}$) heterostructures (R=trivalent cation, and A=divalent cation) by using a two-orbital double-exchange model supplemented by the…

强关联电子 · 物理学 2015-05-13 Rong Yu , Seiji Yunoki , Shuai Dong , Elbio Dagotto

Increasing precision in the growth of superlattices sparks hope in applications that may arise from engineering layered structures. Heterostructuring and functionalization of magnetic oxides have been very popular due to their versatility…

强关联电子 · 物理学 2026-02-10 Priyanka Aggarwal , Kirill B. Agapev , Sagar Sarkar , Biplab Sanyal , Igor Di Marco , Fabrizio Cossu

Heterostructures of mixed-valence manganites are still under intense scrutiny, due to the occurrence of exotic quantum phenomena linked to electronic correlation and interfacial composition. For instance, if two anti-ferromagnetic…

强关联电子 · 物理学 2022-08-05 Fabrizio Cossu , Heung-Sik Kim , Biplab Sanyal , Igor Di Marco

Measurements of the resistive properties and the lattice parameters of a (LaVO3)[6 unit cells]/(SrVO3)[1 unit cell] superlattice between 10K and room temperature are presented. A low temperature metallic phase compatible with a Fermi liquid…

强关联电子 · 物理学 2015-05-28 A. David , R. Frésard , Ph. Boullay , W. Prellier , U. Lüders , P. -E. Janolin

Layered ruthenates are a unique class of systems which manifests a variety of electronic and magnetic features emerged from competing energy scales. At the heart of such features lies the multi-orbital physics, especially, the…

强关联电子 · 物理学 2022-11-08 Minjae Kim , Chang-Jong Kang , Jae-Ho Han , Kyoo Kim , Bongjae Kim

Heterostructured material systems devoid of ferroic components are presumed not to display ordering associated with ferroelectricity. In heterostructures composed of transition metal oxides, however, the disruption introduced by an…