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相关论文: Perovskite oxide heterojunction for Rashba-Dressel…

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Inversion asymmetry, combined with spin-orbit interaction, leads to Rashba or Dresselhaus effects, or combinations of them that are promising for technologies based on antiferromagnetic spintronics. Since understanding the exact nature of…

材料科学 · 物理学 2025-02-12 Nirmal Ganguli , Avishek Singh , Vivek Kumar , Jayita Chakraborty

The strong spin-orbit interaction in the organic-inorganic perovskites tied to the incorporation of heavy elements (\textit{e.g.} Pb, I) makes these materials interesting for applications in spintronics. Due to a lack of inversion symmetry…

The momentum-dependent Rashba and Dresselhaus spin-splitting has gained much attention for its highly promising applications in spintronics. In the present work, ab initio density functional theory calculations are performed to study the…

材料科学 · 物理学 2022-08-02 Sajjan Sheoran , Manish Kumar , Preeti Bhumla , Saswata Bhattacharya

Antiferromagnetic spintronics, a promising technology for ultra-fast electronic devices, faces several challenges, including the lack of materials simultaneously hosting robust antiferromagnetism and adequate Rashba-like interaction. We…

材料科学 · 物理学 2025-08-11 Vivek Kumar , Nirmal Ganguli

Rashba-like spin-orbit interaction at oxide heterostructures emerges as a much sought-after feature in the context of oxide spintronics and spin-orbitronics. KTaO$_3$ (KTO) is one of the best substrates available for the purpose, owing to…

材料科学 · 物理学 2022-09-19 Vivek Kumar , Nirmal Ganguli

Inorganic-organic lead halide perovskites, particularly methylammonium lead halide (MAPbI$_3$) perovskite, is perceived to be a promising material for optoelectronics and spintronics. However, lead toxicity and instability under air and…

材料科学 · 物理学 2022-12-07 Megha Arya , Preeti Bhumla , Sajjan Sheoran , Suraj , S Bhattacharya

Two-dimensional (2D) hybrid organic-inorganic perovskites (HOIPs) are introducing new directions in the 2D materials landscape. The coexistence of ferroelectricity and spin-orbit interactions play a key role in their optoelectronic…

材料科学 · 物理学 2021-04-08 Fei Wang , Heng Gao , Coen de Graaf , Josep M. Poblet , Branton J. Campbell , Alessandro Stroppa

Spin-orbit coupling (SOC) in conjunction with broken inversion symmetry acts as a key ingredient for several intriguing quantum phenomena viz. persistent spin textures, topological surface states and Rashba-Dresselhaus (RD) effects. The…

材料科学 · 物理学 2021-09-28 Preeti Bhumla , Deepika Gill , Sajjan Sheoran , Saswata Bhattacharya

The impact of spin-orbit interactions in NdNiO2/SrTiO3(001) and NdNiO2/KTaO3(001) is explored by performing density functional theory simulations including a Coulomb repulsion term. Polarity mismatch drives the emergence of an interfacial…

超导电性 · 物理学 2024-01-10 Benjamin Geisler

Ruddelsden-Popper halide perovskites are highly versatile quasi-two-dimensional energy materials with a wide range of tunable optoelectronic properties. Here we use the all-inorganic Cs$_{n+1}$Pb$_n$X$_{3n+1}$ Ruddelsden-Popper perovskites…

We investigate the superconductivity in two-dimensional electron systems formed in SrTiO3 nanostructures. Our the- oretical analysis is based on the three-orbital model, which takes into account t2g orbitals of Ti ions. Because of the…

超导电性 · 物理学 2013-07-10 Yasuharu Nakamura , Youichi Yanase

Oxide heterointerfaces constitute a rich platform for realizing novel functionalities in condensed matter. A key aspect is the strong link between structural and electronic properties, which can be modified by interfacing materials with…

In transition metal perovskites (ABO3) most physical properties are tunable by structural parameters such as the rotation of the BO6 octahedra. Examples include the N\'eel temperature of orthoferrites, the conductivity of mixed-valence…

材料科学 · 物理学 2019-03-27 Julien Varignon , Jacobo Santamaria , Manuel Bibes

Motivated by the discovery of superconductivity in KTaO3-based heterostructures, we study a pairing mechanism based on spin-orbit assisted coupling between the conduction electrons and the ferroelectric modes present in the material. We use…

Metal halide perovskites exhibit a materials physics that is distinct from traditional inorganic and organic semiconductors. While materials such as CH3NH3PbI3 are non-magnetic, the presence of heavy elements (Pb and I) in a…

The two-dimensional layered perovskite Sr2IrO4 was proposed to be a spin-orbit Mott insulator, where the effect of Hubbard interaction is amplified on a narrow J_{eff} = 1/2 band due to strong spin-orbit coupling. On the other hand, the…

强关联电子 · 物理学 2012-03-08 Jean-Michel Carter , V. Vijay Shankar , M. Ahsan Zeb , Hae-Young Kee

The electronic structure of SrTiO3 and SrHfO3 (001) surfaces with oxygen vacancies is studied by means of first-principles calculations. We reveal how oxygen vacancies within the first atomic layer of the SrTiO3 surface (i) induce a large…

强关联电子 · 物理学 2016-01-13 A. C. Garcia-Castro , M. G. Vergniory , E. Bousquet , A. H. Romero

It has been recently suggested that the coexistence of ferroelectricity and Rashba-like spin-splitting effects due to spin-orbit coupling in a single material may allow for a non-volatile electric control of spin degrees of freedom. In the…

材料科学 · 物理学 2016-07-12 Luiz Gustavo Davanse da Silveira , Paolo Barone , Silvia Picozzi

We report normal and superconducting properties of the Rashba-type noncentrosymmetric com- pound CaIrSi3, using single crystalline samples with nearly 100% superconducting volume fraction. The electronic density of states revealed by the…

超导电性 · 物理学 2012-11-22 G. Eguchi , H. Wadati , T. Sugiyama , E. Ikenaga , S. Yonezawa , Y. Maeno

Rashba-Dresselhaus effects, which originate from spin-orbit coupling and allow for spin manipulations, are actively explored in materials following the pursuit of spintronics and quantum computing. However, materials that possess…

材料科学 · 物理学 2024-07-22 Abduljelili Popoola , Nikhilesh Maity , Ravi Kashikar , S. Lisenkov , I. Ponomareva
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