Research output: Contribution to Journal/Magazine › Comment/debate › peer-review
<mark>Journal publication date</mark> | 15/08/1992 |
---|---|
<mark>Journal</mark> | Physical review B |
Issue number | 7 |
Volume | 46 |
Number of pages | 4 |
Pages (from-to) | 4320-4323 |
Publication Status | Published |
<mark>Original language</mark> | English |
The fine structure of cyclotron (CR) and electric-dipole spin (EDSR) resonances in a heterostructure has been studied near the spin-split Landau-level crossing in a tilted magnetic field. Spin-orbit coupling splits the lines of the mixed CR-EDSR spectrum, the gaps being linear in the spin-orbit interaction. This effect is shown to be pronounced at the lowest Landau levels and sensitive to the magnetic-field orientation in the plane in the case of wide quantum wells. The polarization dependence of the EDSR efficiency far from the crossing region can help in distinguishing different spin-orbital terms in the effective two-dimensional Hamiltonian.