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The formation of a novel spin-polarized 2D electron gas at the LaMnO$_3$ monolayer embedded in SrMnO$_3$ is predicted from the first-principles density-functional calculations. The La (d) electrons become confined in the direction normal to…

Materials Science · Physics 2010-03-10 B. R. K. Nanda , S. Satpathy

We present a study of delta ($\delta$) doping at LaTiO$_3$/SrTiO$_3$ (LTO/STO) interface with iso-structural antiferromagnetic perovskite LaCrO$_3$ (LCO) that dramatically alters the properties of the two dimensional electron gas (2-DEG) at…

Strongly Correlated Electrons · Physics 2015-06-03 Shubhankar Das , A. Rastogi , Lijun Wu , Jin-Cheng Zheng , Z. Hossain , Yimei Zhu , R. C. Budhani

We investigate spin pumping and the effective spin mixing conductance in heterostructures based on magnetic oxide trilayers composed of La$_{0.7}$Sr$_{0.3}$MnO$_3$ (LSMO), LaNiO$_3$ (LNO), and SrRuO$_3$ (SRO). The heterostructures serve as…

The electronic properties of the polar interface between insulating oxides is a subject of great current interest. An exciting new development is the observation of robust magnetism at the interface of two non-magnetic materials LaAlO_3…

Strongly Correlated Electrons · Physics 2013-10-03 Sumilan Banerjee , Onur Erten , Mohit Randeria

We derive boundary conditions for the coupled spin-charge diffusion equations at a transmitting interface between two-dimensional electron systems with different strengths of the Rashba spin-orbit (SO) coupling $\alpha$, and an electric…

Materials Science · Physics 2009-11-11 Yaroslav Tserkovnyak , Bertrand I. Halperin , Alexey A. Kovalev , Arne Brataas

We investigate the spin diffusion and transport in a graphene monolayer on SiO$_2$ substrate by means of the microscopic kinetic spin Bloch equation approach. The substrate causes a strong Rashba spin-orbit coupling field $\sim 0.15$ meV,…

Mesoscale and Nanoscale Physics · Physics 2011-07-07 P. Zhang , M. W. Wu

The low-temperature spin dynamics of the orthorhombic TbFeO$_3$ perovskite has been studied. It has been found that the inelastic neutron scattering (INS) spectrum contains two modes corresponding to different sublattices in the compound.…

Strongly Correlated Electrons · Physics 2022-11-23 S. A. Skorobogatov , K. A. Shaykhutdinov , D. A. Balaev , M. S. Pavlovskii , A. A. Krasikov , K. Yu. Terentjev

The unconventional magnetotransport at the interface between transition-metal oxides $LaAlO_3$ (LAO) and $SrTiO_3$ (STO) is frequently related to mobile electrons interacting with localized magnetic moments. However nature and properties of…

Mesoscale and Nanoscale Physics · Physics 2017-05-30 N. Bovenzi , M. Diez

In magnetoresistive (MR) studies of magnetic multilayers composed of combinations of ferromagnetic (F) and non-magnetic (N) metals, the magnetic moment (or related 'spin') of each conduction electron plays a crucial role, supplementary to…

Materials Science · Physics 2015-06-25 Jack Bass , William P. Pratt

By means of ab initio calculations the possibilities of switchable spin-polarized two-dimensional electron gas (2DEG) at the interface of antiferromagnetic and ferroelectric perovskites, i.e., LaMnO3/BaTiO3 superlattice, were investigated.…

Materials Science · Physics 2022-01-25 Irina Piyanzina , Rinat Mamin

A lateral interface connecting two regions with different strengths of the Bychkov-Rashba spin-orbit interaction can be used as a spin polarizer of electrons in two dimensional semiconductor heterostructures. [Khodas \emph{et al.}, Phys.…

Mesoscale and Nanoscale Physics · Physics 2017-05-16 A. Shekhter , M. Khodas , A. M. Finkel'stein

There is steadily increasing evidence that the two-dimensional electron gas (2DEG) formed at the interface of some insulating oxides like LaAlO3/SrTiO3 and LaTiO3/SrTiO3 is strongly inhomogeneous. The inhomogeneous distribution of electron…

Mesoscale and Nanoscale Physics · Physics 2019-06-21 N. Bovenzi , S. Caprara , M. Grilli , R. Raimondi , N. Scopigno , G. Seibold

We investigate the spin-dependent transport properties of a two-dimensional electron gas formed at oxides' interface in the presence of a magnetic field. We consider several scenarios for the oxides' properties, including oxides with…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 Chenglong Jia , Jamal Berakdar

We calculate the mobility of a two-dimensional electron gas residing at the interface of LaAlO$_{3}$/SrTiO$_{3}$ following a three band Boltzmann approach at low temperature, where carrier-charged impurity scattering process is assumed to…

Mesoscale and Nanoscale Physics · Physics 2016-06-22 A. Faridi , R. Asgari , A. Langari

Spin transport properties of a spin-polarized two-dimensional electron gas are studied in the presence of electron-electron interactions. Longitudinal and transverse spin diffusion coefficients are calculated with the quantum transport…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Yutaka Takahashi , Kosuke Shizume , Naoto Masuhara

Utilizing time-resolved Kerr rotation techniques, we have investigated the spin dynamics of a high mobility, low density two dimensional electron gas in a GaAs/Al0:35Ga0:65As heterostructure in dependence on temperature from 1.5 K to 30 K.…

Other Condensed Matter · Physics 2009-11-13 X. Z. Ruan , H. H. Luo , Yang Ji , Z. Y. Xu , V. Umansky

There is a version of the Landau-Lifshitz equation that takes into account the Coulomb exchange interactions between atoms, expressed by the term $\sim\bm{s}\times\triangle\bm{s}$. On the other hand, ions in the magnetic materials have…

Materials Science · Physics 2024-01-30 Mariya Iv. Trukhanova , Pavel Andreev

The Edelstein effect provides the purely electrical generation and control of a homogeneous magnetization in primarily nonmagnetic materials with broken inversion symmetry. Usually, only the spin density response to an external electric…

Mesoscale and Nanoscale Physics · Physics 2021-03-31 Annika Johansson , Börge Göbel , Jürgen Henk , Manuel Bibes , Ingrid Mertig

Recent experimental observations of exchange bias in the La$_{0.67}$Sr$_{0.33}$MnO$_{3}$/LaAlO$_{3}$/SrTiO$_{3}$ heterostructure, which lacks an intrinsic antiferromagnetic layer, have sparked theoretical investigations into the underlying…

Materials Science · Physics 2025-05-29 Adam B. Cahaya

Understanding, creating, and manipulating spin polarization of two-dimensional electron gases at complex oxide interfaces presents an experimental challenge. For example, despite almost a decade long research effort, the microscopic origin…

Strongly Correlated Electrons · Physics 2021-01-12 Fangdi Wen , Yanwei Cao , Xiaoran Liu , Banabir Pal , Srimanta Middey , Mikhail Kareev , Jak Chakhalian
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