Details
| Original language | English |
|---|---|
| Article number | 206601 |
| Journal | Physical Review Letters |
| Volume | 101 |
| Issue number | 20 |
| Publication status | Published - 11 Nov 2008 |
Abstract
In this Letter, the first spin noise spectroscopy measurements in semiconductor systems of reduced effective dimensionality are reported. The nondemolition measurement technique gives access to the otherwise concealed intrinsic, low temperature electron spin relaxation time of n-doped GaAs (110) quantum wells and to the corresponding low temperature anisotropic spin relaxation. The Brownian motion of the electrons within the spin noise probe laser spot becomes manifest in a modification of the spin noise line width. Thereby, the spatially resolved observation of the stochastic spin polarization uniquely allows to study electron dynamics at equilibrium conditions with a vanishing total momentum of the electron system.
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In: Physical Review Letters, Vol. 101, No. 20, 206601, 11.11.2008.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Spin noise spectroscopy in GaAs (110) quantum wells
T2 - Access to intrinsic spin lifetimes and equilibrium electron dynamics
AU - Müller, Georg M.
AU - Römer, Michael
AU - Schuh, Dieter
AU - Wegscheider, Werner
AU - Hübner, Jens
AU - Oestreich, Michael
PY - 2008/11/11
Y1 - 2008/11/11
N2 - In this Letter, the first spin noise spectroscopy measurements in semiconductor systems of reduced effective dimensionality are reported. The nondemolition measurement technique gives access to the otherwise concealed intrinsic, low temperature electron spin relaxation time of n-doped GaAs (110) quantum wells and to the corresponding low temperature anisotropic spin relaxation. The Brownian motion of the electrons within the spin noise probe laser spot becomes manifest in a modification of the spin noise line width. Thereby, the spatially resolved observation of the stochastic spin polarization uniquely allows to study electron dynamics at equilibrium conditions with a vanishing total momentum of the electron system.
AB - In this Letter, the first spin noise spectroscopy measurements in semiconductor systems of reduced effective dimensionality are reported. The nondemolition measurement technique gives access to the otherwise concealed intrinsic, low temperature electron spin relaxation time of n-doped GaAs (110) quantum wells and to the corresponding low temperature anisotropic spin relaxation. The Brownian motion of the electrons within the spin noise probe laser spot becomes manifest in a modification of the spin noise line width. Thereby, the spatially resolved observation of the stochastic spin polarization uniquely allows to study electron dynamics at equilibrium conditions with a vanishing total momentum of the electron system.
UR - http://www.scopus.com/inward/record.url?scp=56249129279&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.101.206601
DO - 10.1103/PhysRevLett.101.206601
M3 - Article
AN - SCOPUS:56249129279
VL - 101
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 20
M1 - 206601
ER -