Spin-photovoltaic effect in quantum wires due to inter-subband transitions

Abstract

We consider the current induced in a quantum wire by external electromagnetic radiation. The photocurrent is caused by the interplay of spin-orbit interaction (Rashba and Dresselhaus terms) and external in-plane magnetic field. We calculate this current using a Wigner functions approach taking into account radiation-induced transitions between transverse subbands. The magnitude and the direction of the current depend on the Dresselhaus and Rashba constants, strength of magnetic field, radiation frequency and intensity. The current can be controlled by changing some of these parameters.

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• Scope of Magnetic Tunnel Junction Based Molecular Electronics and Spintronics Devices
• Manipulating the spin texture in spin-orbit superlattice by terahertz radiation
• Radiation-induced current in quantum wires with side-coupled nano-rings
• Photogalvanic effect and photoconductance in a quantum channel with a single short-range scatterer
• Interplay between exchange split Dirac and Rashba-type surface states in MnBi${}_2$Te${}_4$/BiTeI interface
• Electronic structure and transport for a laser-field-irradiated quantum wire with Rashba spin-orbit coupling
• Asymmetric Landau bands due to spin-orbit coupling