1
|
Schmidt CB, Priyadarshi S, Bieler M. Sub-picosecond temporal resolution of anomalous Hall currents in GaAs. Sci Rep 2017; 7:11241. [PMID: 28894193 PMCID: PMC5593959 DOI: 10.1038/s41598-017-11603-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 08/25/2017] [Indexed: 11/08/2022] Open
Abstract
The anomalous Hall (AH) and spin Hall effects are important tools for the generation, control, and detection of spin and spin-polarized currents in solids and, thus, hold promises for future spintronic applications. Despite tremendous work on these effects, their ultrafast dynamic response is still not well explored. Here, we induce ultrafast AH currents in a magnetically-biased semiconductor by optical femtosecond excitation at room temperature. The currents' dynamics are studied by detecting the simultaneously emitted THz radiation. We show that the temporal shape of the AH currents can be extracted by comparing its THz radiation to the THz radiation emitted from optically induced currents whose temporal shape is well known. We observe a complex temporal shape of the AH currents suggesting that different microscopic origins contribute to the current dynamics. This is further confirmed by photon energy dependent measurements revealing a current inversion at low optical excitation intensities. Our work is a first step towards full time resolution of AH and spin Hall currents and helps to better understand the underlying microscopic origins, being a prerequisite for ultrafast spintronic applications using such currents.
Collapse
Affiliation(s)
- Christian B Schmidt
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116, Braunschweig, Germany
- Leibniz Institute of Photonic Technology, 07745, Jena, Germany
| | - Shekhar Priyadarshi
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116, Braunschweig, Germany
- Institute of Physical Chemistry, University of Hamburg, 20146, Hamburg, Germany
| | - Mark Bieler
- Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116, Braunschweig, Germany.
| |
Collapse
|
2
|
Krauss M, Aeschlimann M, Schneider HC. Ultrafast spin dynamics including spin-orbit interaction in semiconductors. PHYSICAL REVIEW LETTERS 2008; 100:256601. [PMID: 18643687 DOI: 10.1103/physrevlett.100.256601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2008] [Indexed: 05/26/2023]
Abstract
This Letter presents a theoretical investigation of ultrafast spin-dependent carrier dynamics in semiconductors due to strong spin-orbit coupling using holes in bulk GaAs as a model system. By computing the microscopic carrier dynamics in the anisotropic hole-band structure including spin-orbit coupling, we obtain spin-relaxation times in quantitative agreement with measured hole-spin relaxation times [Phys. Rev. Lett. 89, 146601 (2002)10.1103/PhysRevLett.89.146601]. We show that different optical techniques for the measurement of hole-spin dynamics yield different results, in contrast to the case of electron-spin dynamics.
Collapse
Affiliation(s)
- Michael Krauss
- Physics Department and Research Center OPTIMAS, University of Kaiserslautern, P.O. Box 3049, 67663 Kaiserslautern, Germany.
| | | | | |
Collapse
|
3
|
Voisin C, Del Fatti N, Christofilos D, Vallée F. Ultrafast Electron Dynamics and Optical Nonlinearities in Metal Nanoparticles. J Phys Chem B 2001. [DOI: 10.1021/jp0038153] [Citation(s) in RCA: 541] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christophe Voisin
- Laboratoire d'Optique Quantique du CNRS, Ecole Polytechnique, 91128 Palaiseau, France, and CPMOH, CNRS-Université Bordeaux I, 351 cours de la Libération, 33405 Talence, France
| | - Natalia Del Fatti
- Laboratoire d'Optique Quantique du CNRS, Ecole Polytechnique, 91128 Palaiseau, France, and CPMOH, CNRS-Université Bordeaux I, 351 cours de la Libération, 33405 Talence, France
| | - Dimitris Christofilos
- Laboratoire d'Optique Quantique du CNRS, Ecole Polytechnique, 91128 Palaiseau, France, and CPMOH, CNRS-Université Bordeaux I, 351 cours de la Libération, 33405 Talence, France
| | - Fabrice Vallée
- Laboratoire d'Optique Quantique du CNRS, Ecole Polytechnique, 91128 Palaiseau, France, and CPMOH, CNRS-Université Bordeaux I, 351 cours de la Libération, 33405 Talence, France
| |
Collapse
|
4
|
Langot P, Christofilos D, Tommasi R, Vallée F. Femtosecond investigation of the hot-phonon effect in GaAs at room temperature. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:14487-14493. [PMID: 9985453 DOI: 10.1103/physrevb.54.14487] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
5
|
Bar-Ad S, Kner P, Marquezini MV, Chemla DS. Carrier Dynamics in the Quantum Kinetic Regime. PHYSICAL REVIEW LETTERS 1996; 77:3177-3180. [PMID: 10062153 DOI: 10.1103/physrevlett.77.3177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
6
|
Langot P, Tommasi R, Vallée F. Nonequilibrium hole relaxation dynamics in an intrinsic semiconductor. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:1775-1784. [PMID: 9986024 DOI: 10.1103/physrevb.54.1775] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
7
|
Hu BY, Flensberg K. Electron-electron scattering in linear transport in two-dimensional systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:10072-10077. [PMID: 9982572 DOI: 10.1103/physrevb.53.10072] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
8
|
Leitenstorfer A, Fürst C, Laubereau A, Kaiser W, Tränkle G, Weimann G. Femtosecond carrier dynamics in GaAs far from equilibrium. PHYSICAL REVIEW LETTERS 1996; 76:1545-1548. [PMID: 10061750 DOI: 10.1103/physrevlett.76.1545] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
9
|
Pötz W, Ziger M, Kocevar P. Tunneling of laser-generated free electrons in semiconductor double wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:1959-1969. [PMID: 9981264 DOI: 10.1103/physrevb.52.1959] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
10
|
Kash JA. Influence of the carrier distribution on carrier-carrier scattering in GaAs. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:4680-4683. [PMID: 9979325 DOI: 10.1103/physrevb.51.4680] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
11
|
Collet JH, Hunsche S, Heesel H, Kurz H. Influence of electron-hole correlations on the absorption of GaAs in the presence of nonthermalized carriers. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:10649-10655. [PMID: 9975162 DOI: 10.1103/physrevb.50.10649] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
12
|
Snoke DW. Density dependence of electron scattering at low density. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:11583-11591. [PMID: 9975291 DOI: 10.1103/physrevb.50.11583] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
13
|
Nintunze N, Osman MA. Ultrafast relaxation of highly photoexcited carriers in p-type and intrinsic GaAs. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:10706-10714. [PMID: 9975170 DOI: 10.1103/physrevb.50.10706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
14
|
Kane MG, Sun KW, Lyon SA. Ultrafast carrier-carrier scattering among photoexcited nonequilibrium carriers in GaAs. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:7428-7438. [PMID: 9974722 DOI: 10.1103/physrevb.50.7428] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
15
|
Mosková A, Mosko M. Exchange carrier-carrier scattering of photoexcited spin-polarized carriers in GaAs quantum wells: Monte Carlo study. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:7443-7452. [PMID: 10009483 DOI: 10.1103/physrevb.49.7443] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
16
|
Rossi F, Haas S, Kuhn T. Ultrafast relaxation of photoexcited carriers: The role of coherence in the generation process. PHYSICAL REVIEW LETTERS 1994; 72:152-155. [PMID: 10055589 DOI: 10.1103/physrevlett.72.152] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
17
|
Kash JA. Carrier-carrier scattering: An experimental comparison of bulk GaAs and GaAs/AlxGa1-xAs quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:18336-18339. [PMID: 10008489 DOI: 10.1103/physrevb.48.18336] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
18
|
Hunsche S, Heesel H, Ewertz A, Kurz H, Collet JH. Spectral-hole burning and carrier thermalization in GaAs at room temperature. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:17818-17826. [PMID: 10008412 DOI: 10.1103/physrevb.48.17818] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
19
|
Snoke DW. Theory of electron-electron scattering at low density. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:13346-13352. [PMID: 10005642 DOI: 10.1103/physrevb.47.13346] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|