Large Rashba parameter for 4d strongly correlated perovskite oxide SrNbO3 ultrathin films

Abstract

To elucidate the spin relaxation mechanism of SrNbO3 (SNO) ultrathin films, the transport properties of a series of SNO films with various thicknesses were measured on both sides of the metal insulator transition. The spin orbit scattering time was deduced from the analysis of the magnetoresistance with weak antilocalization theory, and it was found that the spin orbit scattering time was inversely proportional to the momentum scattering time. This result was explained in terms of the D`Yakonov Perel` mechanism, indicative of the dominant Rashba effect. The values of the Rashba parameter were largest in the values reported for other ultrathin films of metallic oxides.

arXiv comment15pages, 7 figures

References in corpus (23)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Advanced capabilities for materials modelling with Quantum ESPRESSO
• BoltzTraP. A code for calculating band-structure dependent quantities
• Universal Intrinsic Spin-Hall Effect
• New Perspectives for Rashba Spin-Orbit Coupling
• Emergent Phenomena Induced by Spin-Orbit Coupling at Surfaces and Interfaces
• Tunable Rashba spin-orbit interaction at oxide interfaces
• Highly efficient and tuneable spin-to-charge conversion through Rashba coupling at oxide interfaces
• Weak Antilocalization and Spin Precession in Quantum Wells
• Spin-pumping into surface states of topological insulator α-Sn, spin to charge conversion at room temperature
• Spin relaxation of conduction electrons
• Finite-temperature conductivity and magnetoconductivity of topological insulators
• Planar Hall Effect and Anisotropic Magnetoresistance in a polar-polar interface of LaVO${}_3$-KTaO${}_3$ with strong spin-orbit coupling
• Magneto-resistance up to 60 Tesla in Topological Insulator Bi2Te3 Thin Films
• Intrinsic high electrical conductivity of stoichiometric SrNbO3 epitaxial thin films
• Epitaxial growth and thermodynamic stability of SrIrO3/SrTiO3 heterostructures
• Weak localization and spin splitting in inversion layers on p-type InAs
• Sensitively Temperature-Dependent Spin Orbit Coupling in SrIrO3 Thin Films
• Role of disorder and correlations in metal-insulator transition in ultrathin SrVO3 films
• Abrupt Enhancement of Spin-Orbit Scattering Time in Ultrathin Semimetallic SrIrO${}_3$ Close to the Metal-Insulator Transition
• Gate tunable spin-orbit coupling and weak antilocalization effect in an epitaxial La${}_{2/3}$Sr${}_{1/3}$MnO${}_3$ thin film
• Transport properties around the metal-insulator transition for SrVO3 ultrathin films fabricated by electrochemical etching
• Anti-Localization in Oxides: Effective Spin-3/2 Model

Cited by in corpus (1)

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