Measurement of optically-pumped electron spin polarization in n-GaAs at high external electric fields

Hsu, Hua-Wei; Sih, Vanessa

doi:10.1016/j.physb.2023.415088

Title: Measurement of optically-pumped electron spin polarization in n-GaAs at high external electric fields

Journal Article · Wed Jun 28 00:00:00 EDT 2023 · Physica. B, Condensed Matter

DOI:https://doi.org/10.1016/j.physb.2023.415088· OSTI ID:2006637

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University of Michigan, Ann Arbor, MI (United States)

We use the technique of time-resolved Kerr rotation (TRKR) to measure the electron spin polarization generated by optical spin pumping in an n-type gallium arsenide (GaAs) epilayer when an external electric field is simultaneously applied on the sample. The drift of the electron spins under the influence of the external electric field is captured with spatial scans of the pump–probe separation. A significant decay in the magnitude of electron spin polarization with electric field is observed and is attributed to the increased inhomogeneous broadening caused by the field-induced drift and the hot electron effects. Here, we extend the electric field range to as high as the Gunn threshold field in the measurement and we do not observe a spin amplification effect due to the spin Gunn effect under our experimental scheme.

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Research Organization:: Univ. of Michigan, Ann Arbor, MI (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0016206

OSTI ID:: 2006637

Alternate ID(s):: OSTI ID: 1988682

Journal Information:: Physica. B, Condensed Matter, Vol. 666; ISSN 0921-4526

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

References (18)

Spintronics: Fundamentals and applications Žutić, Igor; Fabian, Jaroslav; Das Sarma, S. Reviews of Modern Physics, Vol. 76, Issue 2 https://doi.org/10.1103/RevModPhys.76.323	journal	April 2004
Spin Relaxation near the Metal-Insulator Transition: Dominance of the Dresselhaus Spin-Orbit Coupling Intronati, Guido A.; Tamborenea, Pablo I.; Weinmann, Dietmar Physical Review Letters, Vol. 108, Issue 1 https://doi.org/10.1103/PhysRevLett.108.016601	journal	January 2012
Transport of a persistent spin helix drifting transverse to the spin texture Passmann, F.; Bristow, A. D.; Moore, J. N. Physical Review B, Vol. 99, Issue 12 https://doi.org/10.1103/PhysRevB.99.125404	journal	March 2019
Spin Gunn Effect Qi, Yunong; Yu, Zhi-Gang; Flatté, Michael E. Physical Review Letters, Vol. 96, Issue 2 https://doi.org/10.1103/PhysRevLett.96.026602	journal	January 2006
Microwave oscillations of current in III–V semiconductors Gunn, J. B. Solid State Communications, Vol. 1, Issue 4 https://doi.org/10.1016/0038-1098(63)90041-3	journal	September 1963
Current-Controlled Spin Precession of Quasistationary Electrons in a Cubic Spin-Orbit Field Altmann, P.; Hernandez, F. G. G.; Ferreira, G. J. Physical Review Letters, Vol. 116, Issue 19 https://doi.org/10.1103/PhysRevLett.116.196802	journal	May 2016
Illumination-induced modulation of conductivity and Gunn oscillation properties in epitaxial GaAs Hsu, Hua-Wei; Sih, Vanessa Journal of Applied Physics, Vol. 129, Issue 9 https://doi.org/10.1063/5.0041508	journal	March 2021
Spintronics: A Spin-Based Electronics Vision for the Future Wolf, S. A.; Awschalom, D. D.; Buhrman, R. A. Science, Vol. 294, Issue 5546, p. 1488-1495 https://doi.org/10.1126/science.1065389	journal	November 2001
Metal-Insulator Transition Mott, N. F. Reviews of Modern Physics, Vol. 40, Issue 4 https://doi.org/10.1103/RevModPhys.40.677	journal	October 1968
Lateral drag of spin coherence in gallium arsenide Kikkawa, J. M.; Awschalom, D. D. Nature, Vol. 397, Issue 6715 https://doi.org/10.1038/16420	journal	January 1999
Electron spin relaxation under drift in GaAs Barry, E. A.; Kiselev, A. A.; Kim, K. W. Applied Physics Letters, Vol. 82, Issue 21 https://doi.org/10.1063/1.1578180	journal	May 2003
Spin-Orbit Coupling Effects in Zinc Blende Structures Dresselhaus, G. Physical Review, Vol. 100, Issue 2 https://doi.org/10.1103/PhysRev.100.580	journal	October 1955
Anisotropic expansion of drifting spin helices in GaAs quantum wells Anghel, S.; Poshakinskiy, A. V.; Schiller, K. Physical Review B, Vol. 103, Issue 3 https://doi.org/10.1103/PhysRevB.103.035429	journal	January 2021
Bias-dependent electron spin lifetimes in n-GaAs and the role of donor impact ionization Furis, M.; Smith, D. L.; Crooker, S. A. Applied Physics Letters, Vol. 89, Issue 10 https://doi.org/10.1063/1.2345608	journal	September 2006
A novel mechanism for spin dephasing due to spin-conserving scatterings Wu, M. W.; Ning, C. Z. The European Physical Journal B, Vol. 18, Issue 3 https://doi.org/10.1007/s100510070021	journal	December 2000
Spin lifetimes and strain-controlled spin precession of drifting electrons in GaAs Beck, M.; Metzner, C.; Malzer, S. Europhysics Letters (EPL), Vol. 75, Issue 4 https://doi.org/10.1209/epl/i2006-10151-4	journal	August 2006
All-electric all-semiconductor spin field-effect transistors Chuang, Pojen; Ho, Sheng-Chin; Smith, L. W. Nature Nanotechnology, Vol. 10, Issue 1 https://doi.org/10.1038/nnano.2014.296	journal	December 2014
Electronic analog of the electro‐optic modulator Datta, Supriyo; Das, Biswajit Applied Physics Letters, Vol. 56, Issue 7 https://doi.org/10.1063/1.102730	journal	February 1990

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Title: Measurement of optically-pumped electron spin polarization in n-GaAs at high external electric fields

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