g-factor anisotropy of hole quantum wires induced by Rashba interaction
نویسندگان
چکیده
منابع مشابه
g-factor anisotropy of hole quantum wires induced by Rashba interaction
We present calculations of the g factors for the lower conductance steps of three-dimensional hole quantum wires. Our results prove that the anisotropy with magnetic field orientation, relative to the wire, originates in the Rashba spin-orbit coupling. We also analyze the relevance of the deformation, as the wire evolves from three-dimensional toward a flat two-dimensional geometry. For high en...
متن کاملHole-spin dynamics and hole g-factor anisotropy in coupled quantum well systems
Due to its p-like character, the valence band in GaAs-based heterostructures offers rich and complex spindependent phenomena. One manifestation is the large anisotropy of Zeeman spin splitting. Using undoped, coupled quantum wells (QWs), we examine this anisotropy by comparing the hole-spin dynamics for highand low-symmetry crystallographic orientations of the QWs. We directly measure the hole ...
متن کاملMultichannel effects in Rashba quantum wires
We investigate intersubband mixing effects in multichannel quantum wires in the presence of Rashba spin-orbit coupling and attached to two terminals. When the contacts are ferromagnetic and their magnetization direction is perpendicular to the Rashba field, the spin-transistor current is expected to depend in an oscillatory way on the Rashba coupling strength due to spin coherent oscillations o...
متن کاملELECTRON AND HOLE g FACTOR ANISOTROPY IN CdTe/CdMgTe QUANTUM WELLS
Effective g factors of electrons and heavy holes in CdTe/CdMgTe quantum wells have been measured with high accuracy as a function of the angle between the magnetic field and the structure growth axis. As a result, we have observed the electron g factor anisotropy in A,B6-based heterostructures. The dependences of the g factor tensor components on the quantum-well width and the solid solution co...
متن کاملConductance in quantum wires by three quantum dots arrays
A noninteracting quantum-dot arrays side coupled to a quantum wire is studied. Transport through the quantum wire is investigated by using a noninteracting Anderson tunneling Hamiltonian. The conductance at zero temperature develops an oscillating band with resonances and antiresonances due to constructive and destructive interference in the ballistic channel, respectively. Moreover, we have fo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2011
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.84.075343