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Giant spin-polarized current in a Dirac fermion system at cyclotron resonance

Olbrich, P., Zoth, C., Vierling, P., Dantscher, K.-M., Budkin, G.V., Tarasenko, Sergey, Belkov, V.V., Kozlov, D.A., Kvon, Z.D., Mikhailov, N.N., Dvoretsky, S.A. and Ganichev, Sergey (2013) Giant spin-polarized current in a Dirac fermion system at cyclotron resonance. arXiv.org.

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We report on the observation of the giant spin-polarized photocurrent in HgTe/HgCdTe quantum well (QW) of critical thickness at which a Dirac spectrum emerges. Exciting QW of 6.6 nm width by terahertz (THz) radiation and sweeping magnetic field we detected a resonant photocurrent. Remarkably, the position of the resonance can be tuned from negative (-0.4 T) to positive (up to 1.2 T) magnetic ...


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Item type:Article
Institutions:Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
Identification Number:
arXiv:1301.4572v1arXiv ID
3.21.Fg, 72.25.Fe, 78.67.De, 73.63.HsPACS
Dewey Decimal Classification:500 Science > 530 Physics
Created at the University of Regensburg:Unknown
Item ID:27923
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