Short-range spin-phonon coupling in in-plane CuO nanowires: a low-temperature Raman investigation
نویسندگان
چکیده
We report an application of low-temperature Raman scattering on in-plane CuO nanowires, in which an overview of the characteristic parameter of spin-phonon coefficient, the interaction of incident light with the spin degrees of freedom, and size effects will be given. The appearance of spin-phonon coefficient decrease reflects the existence of finite size effect.
منابع مشابه
Influence of nonmagnetic Zn substitution on the lattice and magnetoelectric dynamical properties of the multiferroic material CuO
Dynamic magnetoelectric coupling in the improper ferroelectric Cu1−xZnxO (x = 0, x = 0.05) was investigated using terahertz time-domain spectroscopy to probe electromagnon and magnon modes. Zinc substitution was found to reduce the antiferromagnetic ordering temperature and widen the multiferroic phase, under the dual influences of spin dilution and a reduction in unit-cell volume. The impact o...
متن کاملادغام الگوی شبکه‌ای هولشتاین - کاندو برای توصیف نظریه ابررساناهای دمای بالا
It is a common knowledge that the formation of electron pairs is a necessary ingredient of any theoretical work describing superconductivity. Thus, finding the mechanism of the formation of the electron pairs is of utmost importance. There are some experiments on high transition temperature superconductors which support the electron-phonon (e-ph) interactions as the pairing mechanism (ARPES),...
متن کاملRaman evidence for the superconducting gap and spin–phonon coupling in the superconductor Ca(Fe0.95Co0.05)2As2
Inelastic light scattering studies on a single crystal of electron-doped Ca(Fe0.95Co0.05)2As2 superconductor, covering the tetragonal-to-orthorhombic structural transition as well as the magnetic transition at TSM ∼ 140 K and the superconducting transition temperature Tc ∼ 23 K, reveal evidence for superconductivity-induced phonon renormalization. In particular, the phonon mode near 260 cm−1 sh...
متن کاملInvestigation of phononic and thermal properties of InP by using pseudopotential method (Research Article)
In this paper, according to the density functional theory and semiharmonic approximation and solving kohen's equations using plane wave, band structure, phonon scattering; Dielectric tensor, Bourne effective charge, Raman cross-section; We calculated the infrared and specific heat capacity of indium phosphide in two-phase structures on zincblend (ZB) and salt rock (Rs). The results show that t...
متن کاملApplication of Raman microscopy for spin-phonon coupling and magnon excitation study in nanocrystals
There is a wild variety of Raman scattering techniques which may be used for characterization of phononphonon and spin-phonon interaction in nanocrystals. For magnetic nanocrystals, Raman microscopy is a useful tool to probe the spin-phonon coupling and exchange energy between antiferromagnetic next-nearestneighboring magnons in nanocrystals below the Néel temperature. This study shows that mul...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 8 شماره
صفحات -
تاریخ انتشار 2013