Hot electron streaming and population inversion for polar and deformation scattering

Andronov, A. A.; Valov, V. A.; Козлов, В. А.; Mazov, L. S.

doi:10.1016/0038-1098(80)90096-4

Cited by 16 publications

(6 citation statements)

References 7 publications

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“…Before proceeding with the spin orientation by the electric current in a strong electric field we remind the reader of the main steps in the description of the spin-independent streaming distribution [21]. We assume the electric field E to be directed antiparallel to the in-plane axis x and satisfy the inequalities (3).…”

Section: Spin-independent Streaming Regimementioning

confidence: 99%

“…As for the angle p 0 ,y t tr = 2β yx p 0 t tr /h, its values can be comparable with or exceed unity. Indeed, in GaAs-based quantum-wells the linear-p coefficient can be estimated byhβ yx = 7 meV Å [33], which corresponds to the spin splitting 2β yx p 0 = 0.4 meV and 2β yx p 0 t tr /h ≈ 2 for t tr = 3.3×10 −12 s. Since φ x is small, equations (21) and (22) are applicable. However the spin correction δ S (2) p should be calculated for an arbitrary value of p,y t tr .…”

Section: Remarkable Spin-orbit Splittingmentioning

confidence: 99%

“…Then it loses energy by emitting an optical phonon and starts the next period of acceleration. Neglecting the spin effects, the streaming distribution has been analyzed for three-dimensional (3D) plasma [20][21][22] as well as for 2D electron gas [23][24][25][26]. It is obvious that in this case the ratio p dr / p lies in the range of 0.5.…”

Section: Introductionmentioning

confidence: 99%

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Spin-dependent phenomena in semiconductors in strong electric fields

Golub

Ivchenko

2013

New J. Phys.

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We develop a theory of spin-dependent phenomena in the streaming regime characterized by ballistic acceleration of electrons in the moderate electric field until they achieve the optical phonon energy and abruptly emit phonons. It is shown that the Dyakonov-Perel spin relaxation is drastically modified in this regime, the current-induced spin orientation remarkably increases, reaches a high value ≈2% in the electric field ∼ 1 kV cm −1 and falls with further increase in the field. The spin polarization enhancement is caused by squeezing of the electron momentum distribution in the direction of drift. We also predict field-induced oscillatory dynamics of spin polarization of the photocarriers excited into the conduction band by a short circularly polarized optical pulse.

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Section: Spin-independent Streaming Regimementioning

confidence: 99%

Section: Remarkable Spin-orbit Splittingmentioning

confidence: 99%

See 1 more Smart Citation

Spin-dependent phenomena in semiconductors in strong electric fields

Golub

Ivchenko

2013

New J. Phys.

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show abstract

“…Before proceeding with the spin orientation by the electric current in a strong electric field we remind the main steps in description of the spin-independent streaming distribution [21]. We assume the electric field E to be directed antiparallel to the in-plane axis x and satisfy the inequalities (3).…”

Section: Spin-independent Streaming Regimementioning

confidence: 99%

“…Then it loses its energy by emitting an optical phonon and starts the next period of acceleration. Neglecting spin effects, the streaming distribution has been analyzed for the three-dimensional (3D) plasma [20,21,22] as well as for 2D electron gas [23,24,25,26]. It is obvious that in this case the ratio p dr /p lies in the range of 0.5.…”

Section: Introductionmentioning

confidence: 99%

Spin-dependent phenomena in semiconductors in strong electric fields

Golub,

Ivchenko

2013

Preprint

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We develop a theory of spin-dependent phenomena in the streaming regime characterized by ballistic acceleration of electrons in the moderate electric field until they achieve the optical phonon energy and abruptly emit the phonons. It is shown that the Dyakonov-Perel spin relaxation is drastically modified in this regime, the current-induced spin orientation remarkably increases, reaches a high value ≈ 2 % in the electric field ∼ 1 kV/cm and falls with the further increase in the field. The spin polarization enhancement is caused by squeezing of the electron momentum distribution in the direction of drift. We also predict field-induced oscillatory dynamics of spin polarization of the photocarriers excited into the conduction band by a short circularly-polarized optical pulse.

show abstract