Electron spin resonance in a two-dimensional electron gas induced by current or by electric field

Wilamowski, Ż.; Ungier, W.; Jantsch, W.

doi:10.1103/physrevb.78.174423

Cited by 18 publications

(13 citation statements)

References 23 publications

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“…The ground state of the neutral center is a two-fold degenerate state with angular momentum m J = ±1, as the p-d exchange interaction is anti-ferromagnetic. 68 The exchange 68 Such a spin structure can be utilized to establish optical initialization and readout of Mn spin [98] as circularly polarized light (with spin σ J = ±1) selectively excites the m J = ±1 state due to the optical selection rules. interaction between the electron and the neutral center has two origins, the s-d exchange interaction and the electron-hole exchange interaction.…”

Section: Carrier Spin Relaxation In Iii-v and Ii-vi Paramagnetic Dilumentioning

confidence: 99%

“…For example, spin-orbit couplings enable coherent manipulation of spin by an electric field [53,[57][58][59][60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][75][76]. As the electric field is more easily accessible and controllable in genuine electronic devices at the nanoscale, the electrical manipulation of spins is important for semiconductor spintronics.…”

Section: A Short Introduction Of Spin Interactionsmentioning

confidence: 99%

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Spin dynamics in semiconductors

2010

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This article reviews the current status of spin dynamics in semiconductors which has achieved a lot of progress in the past years due to the fast growing field of semiconductor spintronics. The primary focus is the theoretical and experimental developments of spin relaxation and dephasing in both spin precession in time domain and spin diffusion and transport in spacial domain. A fully microscopic many-body investigation on spin dynamics based on the kinetic spin Bloch equation approach is reviewed comprehensively.Comment: a review article with 193 pages and 1103 references. To be published in Physics Reports

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Section: Carrier Spin Relaxation In Iii-v and Ii-vi Paramagnetic Dilumentioning

confidence: 99%

Section: A Short Introduction Of Spin Interactionsmentioning

confidence: 99%

Spin dynamics in semiconductors

2010

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“…An attempt to analyze some features of the ESR absorption within a semiclassical approach was also made in Ref. 28. It should be noticed that previously published works considered only the resonant response of the spin density to the Zeeman interaction with the magnetic field, i.e., the spin susceptibility, and to ac electric field.…”

Section: Introductionmentioning

confidence: 99%

Features of electron-spin-resonance excitation in impure asymmetric two-dimensional structures

Edelstein

2010

Phys. Rev. B

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The band spin-orbit coupling, which makes it possible for the orbital motion of electrons to affect the spin dynamics, is known to be present in crystals with destroyed mirror symmetry. A framework for analyzing effects of the spin-orbit coupling on spin-dependent electron kinetics is suggested and applied to the electronspin resonance on an electron gas in an impure asymmetric two-dimensional semiconductor structure. The general case of excitation of the resonance by both the electric and magnetic components of the microwave electromagnetic field is considered and the frequency-dependent tensors of the electric conductivity and spin susceptibility as well as the spin-current-correlation tensors, which additionally characterize the response of a broken-mirror-symmetry conducting media to an external electromagnetic field, are calculated. It is shown that the electric component of the resonant microwave field can excite the resonance more effectively than the magnetic component in spite of a small value of the spin-orbit coupling. The formalism presented allows one to consider the case when an external static magnetic field is arbitrary inclined with respect to the plane of the structure and the cyclotron frequency c corresponding to the perpendicular component of the field can take any value less that the Fermi energy ⑀ F . It is found that the cyclotron motion not only modifies the spin relaxation time but also has an effect on the spin precession giving rise to a shift of the Larmour frequency. The shift can be positive or negative depending on the sign of g factor of current carriers relative to the sign of their charge. It is shown that due to the cyclotron motion the spin resonance can also take place in the particular case of zero g factor. It is also found that because of the spin-velocity correlations the absorption of the linear polarized radiation can change its value at the magnetic field reversal.

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“…. correspond to the angular momenta parametrizing the non-equilibrium part of the occupation number, u [Eq (8)…”

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confidence: 99%

Effective lattice model for the collective modes in a Fermi liquid with spin-orbit coupling

Kumar

Maslov

2017

Phys. Rev. B

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A Fermi-liquid (FL) with spin-orbit coupling (SOC) supports a special type of collective modeschiral spin waves-which are oscillations of magnetization even in the absence of the external magnetic field. We study the chiral spin waves of a two-dimensional FL in the presence of both the Rashba and Dresselhaus types of SOC and also subject to the in-plane magnetic field. We map the system of coupled kinetic equations for the angular harmonics of the occupation number onto an effective one-dimensional tight-binding model, in which the lattice sites correspond to angular-momentum channels. Linear-in-momentum SOC ensures that the effective tight-binding model has only nearestneighbor hopping on a bipartite lattice. In this language, the continuum of spin-flip particle-hole excitations becomes a conduction band of the lattice model, whereas electron-electron interaction, parameterized by the harmonics of the Landau function, is mapped onto lattice defects of both on-site and bond type. Collective modes correspond to bound states formed by such defects. All the features of the collective-mode spectrum receive natural explanation in the lattice picture as resulting from the competition between on-site and bond defects. PACS numbers: 73.21.-b,78.40.-q,71.70.Ej arXiv:1701.02781v3 [cond-mat.mes-hall] 13 Jan 2017 #1 J' 2 #2 J J #2 #1 0 1 2 ! " J J J J J' 0 1 #1 J' 2 #2 J J c) 0 1 #1 t' 2 #2 J J ! " t t t' 0 1 #1 J 2 #2 J J ! # ! #

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Electron spin resonance in a two-dimensional electron gas induced by current or by electric field

Cited by 18 publications

References 23 publications

Spin dynamics in semiconductors

Spin dynamics in semiconductors

Features of electron-spin-resonance excitation in impure asymmetric two-dimensional structures

Effective lattice model for the collective modes in a Fermi liquid with spin-orbit coupling

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