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For rare-earth ions the spin–orbit interactions are much stronger than the crystal electric field (CEF) interactions. [9] The strong spin–orbit coupling makes J a relatively good quantum number, because the first excited multiplet is at least ~130 meV (1500 K) above the primary multiplet. The result is that filling it at room temperature ...
The effect is named after Gene Dresselhaus, who discovered this splitting in 1955. [1] Spin–orbit interaction is a relativistic coupling between the electric field produced by an ion-core and the resulting dipole moment arising from the relative motion of the electron, and its intrinsic magnetic dipole proportional to the electron spin. In an ...
The Rashba effect can be understood as a second order perturbation theory in which a spin-up hole, for example, jumps from a |,; state to a |,, +,; with amplitude then uses the spin–orbit coupling to flip spin and go back down to the |, +,; with amplitude . Note that overall the hole hopped one site and flipped spin.
As the spin/orbital interactions in such molecules are substantial and a change in spin is thus more favourable, intersystem crossing is most common in heavy-atom molecules (e.g. those containing iodine or bromine). This process is called "spin-orbit coupling". Simply-stated, it involves coupling of the electron spin with the orbital angular ...
If the spin–orbit interaction dominates over the effect of the external magnetic field, and are not separately conserved, only the total angular momentum = + is. The spin and orbital angular momentum vectors can be thought of as precessing about the (fixed) total angular momentum vector J → {\displaystyle {\vec {J}}} .
For what concerns the Rashba–Edelstein effect, the spin-split dispersion relation consists in two bands displaced along the k-axis due to a structural inversion asymmetry (SIA), accordingly to the Rashba effect (i.e., these bands show a linear splitting in k due to the spin-orbit coupling [10] [16]).
In atomic physics, spin–orbit coupling, also known as spin-pairing, describes a weak magnetic interaction, or coupling, of the particle spin and the orbital motion of this particle, e.g. the electron spin and its motion around an atomic nucleus. One of its effects is to separate the energy of internal states of the atom, e.g. spin-aligned and ...
Spin–orbit coupling leads to the fine structure of atomic spectra, which is used in atomic clocks and in the modern definition of the second. Precise measurements of the g -factor of the electron have played an important role in the development and verification of quantum electrodynamics .