Nonlinear magnetogyrotropic photogalvanic effect

Abstract

References (36)

No Citing Articles

Download: PDF (441 kB) or Buy this Article (US$25) (Use Article Pack)

H. Diehl,¹ V. A. Shalygin,² L. E. Golub,³ S. A. Tarasenko,³ S. N. Danilov,¹ V. V. Bel'kov,^1,3 E. G. Novik,⁴ H. Buhmann,⁴ C. Brüne,⁴ L. W. Molenkamp,⁴ E. L. Ivchenko,³ and S. D. Ganichev¹
¹Terahertz Center, University of Regensburg, 93040 Regensburg, Germany
²St. Petersburg State Polytechnic University, 195251 St. Petersburg, Russia
³A.F. Ioffe Physical-Technical Institute of the Russian Academy of Sciences, 194021 St. Petersburg, Russia
⁴Physical Institute (EP3), University of Würzburg, 97074 Würzburg, Germany

Received 20 May 2009; revised 3 July 2009; published 19 August 2009

Wereport on the observation of magnetic-field-induced photocurrent in HgTe/HgCdTe quantumwells of different widths. Both the intrasubband and interband absorptionof infrared/terahertz radiation in the heterostructures is shown to causea dc electric current in the presence of an in-planemagnetic field. The photocurrent behavior upon variation in the radiationpolarization, magnetic-field strength, and temperature is studied. At a moderatemagnetic field the current exhibits a linear field dependence. Athigh magnetic fields, however, it becomes nonlinear and is dominatedby a cubic in magnetic-field contribution. The latter effect isobserved in quantum wells with the inverted band structure only.The experimental results are analyzed in terms of the phenomenologicaltheory and microscopic models of magnetogyrotropic photogalvanic effect based onasymmetry of optical transitions and/or asymmetric relaxation of carriers inthe momentum space. The effect is shown to be relatedto the gyrotropic properties of the structures. The developed theoryof magnetogyrotropic photocurrent describes well all experimental results. It isshown that both intrasubband and interband optical transitions may leadto spin-related as well as to spin-independent magnetic-field-induced photocurrents.

URL:	http://link.aps.org/doi/10.1103/PhysRevB.80.075311
DOI:	10.1103/PhysRevB.80.075311
PACS:	73.21.Fg; 72.25.Fe; 78.67.De; 73.63.Hs 73.21.Fg Quantum wells (electron states/collective excitations) 72.25.Fe Optical creation of spin polarized carriers 78.67.De Optical properties of quantum wells 73.63.Hs Quantum wells (electronic transport) YEAR: 2009
KEYWORDS:	band structure, cadmium compounds, gyromagnetic effect, II-VI semiconductors, magnetoelectric effects, mercury compounds, photoconductivity, photovoltaic effects, semiconductor heterojunctions, semiconductor quantum wells

REFERENCES (36)

View in Separate Window/Tab

For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.

[JETP Lett. 39, 78 (1984)].
Y. S. Gui, C. R. Becker, N. Dai, J. Liu, Z. J. Qiu, E. G. Novik, M. Schäfer, X. Z. Shu, J. H. Chu, H. Buhmann, and L. W. Molenkamp, Phys. Rev. B 70, 115328 (2004).
V. Daumer, I. Golombek, M. Gbordzoe, E. G. Novik, V. Hock, C. R. Becker, H. Buhmann, and L. W. Molenkamp, Appl. Phys. Lett. 83, 1376 (2003).
X. C. Zhang, K. Ortner, A. Pfeuffer-Jeschke, C. R. Becker, and G. Landwehr, Phys. Rev. B 69, 115340 (2004).
S. N. Danilov, B. Wittmann, P. Olbrich, W. Eder, W. Prettl, L. E. Golub, E. V. Beregulin, Z. D. Kvon, N. N. Mikhailov, S. A. Dvoretsky, V. A. Shalygin, N. Q. Vinh, A. F. G. van der Meer, B. Murdin, and S. D. Ganichev, J. Appl. Phys. 105, 013106 (2009).
V. Lechner, L. E. Golub, P. Olbrich, S. Stachel, D. Schuh, W. Wegscheider, V. V. Bel'kov, and S. D. Ganichev, Appl. Phys. Lett. 94, 242109 (2009).
[JETP Lett. 57, 580 (1993)].
[JETP 88, 527 (1999)].
S. A. Tarasenko, Phys. Rev. B 77, 085328 (2008).
V. V. Bel'kov, P. Olbrich, S. A. Tarasenko, D. Schuh, W. Wegscheider, T. Korn, C. Schüller, D. Weiss, W. Prettl, and S. D. Ganichev, Phys. Rev. Lett. 100, 176806 (2008).
E. G. Novik, A. Pfeuffer-Jeschke, T. Jungwirth, V. Latussek, C. R. Becker, G. Landwehr, H. Buhmann, and L. W. Molenkamp, Phys. Rev. B 72, 035321 (2005).
B. A. Foreman, Phys. Rev. B 48, 4964 (1993).