Effect of electron spin-spin exchange interaction on spin precession in coupled quantum well
نویسندگان
چکیده
منابع مشابه
Electron spin exchange processes in strongly coupled spin triads.
The complexes of Cu2+ hexafluoroacetylacetonate with two pyrazol-substituted nitronyl nitroxides are the choice systems to study the spin dynamics of strongly exchange-coupled spin triads. The large values of exchange coupling (ca. 100 cm-1) and high-resolution electron paramagnetic resonance (EPR) at Q- and W-bands (35 and 94 GHz) allowed us to observe and interpret specific characteristics of...
متن کاملLong-ranged spin-spin interaction of electron from unparticle exchange
Unparticles as recently suggested by H. Georgi are identities that are not constrained by dispersion relations but are governed by their scaling dimension, d. We show that their coupling to particles results in macroscopic interactions between matter. The interaction potentials are generally an inverse non-integral power of distance depending on d. This is totally different from known macroscop...
متن کاملEffects of Rashba spin splitting and exchange interaction in electron spin resonance in narrow- gap quantum well heterostructures
We report an electron spin resonance (ESR) study in n-type narrow-gap quantum well (QW) heterostructures. By using the Hartree-Fock approximation based on the 8 k·p Hamiltonian the many-body theory of the ESR in narrow-gap QWs is developed. We have discovered significant enhancement of the ESR g-factor and its low-magnetic-field divergence in both in asymmetric and symmetric QWs which is caused...
متن کاملElectron Spin Precession at CEBAF
The nuclear physics experiments at the Thomas Jefferson National Accelerator Facility often require longitudinally polarized electrons to be simultaneously delivered to three experimental halls. The degree of longitudinal polarization to each hall varies as function of the accelerator settings, making it challenging in certain situations to deliver a high degree of longitudinal polarization to ...
متن کاملSpin textures in strongly coupled electron spin and magnetic or nuclear spin systems in quantum dots.
Controlling electron spins strongly coupled to magnetic and nuclear spins in solid state systems is an important challenge in the field of spintronics and quantum computation. We show here that electron droplets with no net spin in semiconductor quantum dots strongly coupled with magnetic ion or nuclear spin systems break down at low temperature and form a nontrivial antiferromagnetic spatially...
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: Journal of Applied Physics
سال: 2011
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.3622324