Spin-Phonon Interaction in Paramagnetic Crystals
نویسندگان
چکیده
منابع مشابه
Spinon phonon interaction and ultrasonic attenuation in quantum spin liquids.
Several experimental candidates for quantum spin liquids have been discovered in the past few years which appear to support gapless fermionic S=1/2 excitations called spinons. The spinons may form a Fermi sea coupled to a U(1) gauge field, and may undergo a pairing instability. We show that despite being charge neutral, the spinons couple to phonons in exactly the same way that electrons do in ...
متن کاملSpin Fluctuations in Paramagnetic Nickel
The temperature dependence of the cross section for inelastic magnetic scattering of neutrons in constant-q scan has been studied using results of renormalization group theory. The temperature behaviour of the peak in the-cross section and its width are in good agreement with the results of computation of the cross section for paramagnetic Ni using acurae energy bands. The spin fluctuations abo...
متن کاملPhonon modulation of the spin-orbit interaction as a spin relaxation mechanism in InSb quantum dots
We calculate the spin relaxation rates in a parabolic InSb quantum dots due to the spin interaction with acoustical phonons. We considered the deformation potential mechanism as the dominant electron-phonon coupling in the Pavlov-Firsov spin-phonon Hamiltonian. By studying suitable choices of magnetic field and lateral dot size, we determine regions where the spin relaxation rates can be practi...
متن کاملParamagnetic spin pumping.
We have demonstrated spin pumping from a paramagnetic state of an insulator La2NiMnO6 into a Pt film. Single-crystalline films of La2NiMnO6 which exhibit a ferromagnetic order at TC≈270 K were grown by pulsed laser deposition. The inverse spin Hall voltage induced by spin-current injection has been observed in the Pt layer not only in the ferromagnetic phase of La2NiMnO6, but also in a wide te...
متن کاملElectron spin-phonon interaction symmetries and tunable spin relaxation in silicon and germanium
Compared with direct-gap semiconductors, the valley degeneracy of silicon and germanium opens up new channels for spin relaxation that counteract the spin degeneracy of the inversion-symmetric system. Here the symmetries of the electron-phonon interaction for silicon and germanium are identified and the resulting spin lifetimes are calculated. Room-temperature spin lifetimes of electrons in sil...
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
سال: 1960
ISSN: 0031-899X
DOI: 10.1103/physrev.119.1204