Rashba Hamiltonian and electron transport
نویسندگان
چکیده
منابع مشابه
Anisotropic spin and charge transport in Rashba Hamiltonian .
We explore spin and charge transport phenomena in two dimensional electron gas in presence of Rashba spin-orbit coupling connected to two ideal Ferromagnetic leads. In particular we show through a combination of analytical and numerical calculation that the spin polarization which is transported depends on the Magnetization direction of ferromagnet even if the magneti-zation of both FM's are pa...
متن کاملUnconventional dc Transport in Rashba Electron Gases.
We discuss the transport properties of a disordered two-dimensional electron gas with strong Rashba spin-orbit coupling. We show that in the high-density regime where the Fermi energy overcomes the energy associated with spin-orbit coupling, dc transport is accurately described by a standard Drude's law, due to a nontrivial compensation between the suppression of backscattering and the relativi...
متن کاملSupplemental Material to “ Unconventional dc Transport in Rashba Electron Gases ”
To fix the notation, let us start by giving some details on the helicity eigenstates basis. The helicity operator is defined as S = [p̂⇥ ~ ]z and its eigenstates, |ksi, with s = ±1, satisfy the relation S|k±i = ±|k±i. A simple calculation shows in particular that |k±i can be expressed in terms of the standard spin eigenstates, |k "i and |k #i, as |k±i = (exp ( i✓k)|k "i± i|k #i)/ p 2 with ✓k = a...
متن کاملRashba interferometers: Spin-dependent single and two-electron interference
Quantum transport in semiconductor nanostructures can be described theoretically in terms of the propagation and scattering of electron probability waves. Within this approach, elements of a phase-coherent electric circuit play a role similar to quantumoptical devices that can be characterised by scattering matrices. Electronic analogues of well-know optical interferometers have been fabricated...
متن کاملRashba quantum wire: exact solution and ballistic transport.
The effect of Rashba spin-orbit interaction in quantum wires with hard-wall boundaries is discussed. The exact wavefunction and eigenvalue equation are worked out, pointing out the mixing between the spin and spatial parts. The spectral properties are also studied within perturbation theory with respect to the strength of the spin-orbit interaction and diagonalization procedure. A comparison is...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2001
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.64.121202