منابع مشابه
Spin-wave interference in three-dimensional rolled-up ferromagnetic microtubes.
We have investigated spin-wave excitations in rolled-up Permalloy microtubes using microwave absorption spectroscopy. We find a series of quantized azimuthal modes which arise from the constructive interference of Damon-Eshbach-type spin waves propagating around the circumference of the microtubes, forming a spin-wave resonator. The mode spectrum can be tailored by the tube's radius and number ...
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The spin wave interference is studied in two dimensional Ising ferromagnet driven by two coherent spherical magnetic field waves by Monte Carlo simulation. The spin waves are found to propagate and interfere according to the classic rule of interference pattern generated by two point sources. The interference pattern of spin wave is observed in one boundary of the lattice. The interference patt...
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Magnetization dynamics in nanomagnets has attracted broad interest since it was predicted that a dc current flowing through a thin magnetic layer can create spin-wave excitations. These excitations are due to spin momentum transfer, a transfer of spin angular momentum between conduction electrons and the background magnetization, that enables new types of information processing. Here we show ho...
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Alexander Khitun, Dmitri E. Nikonov, and Kang L. Wang Department of Electrical Engineering, Device Research Laboratory, Focus Center on Functional Engineered Nano Architectonics (FENA), Western Institute of Nanoelectronics (WIN), University of California at Los Angeles, Los Angeles, California 90095-1594, USA Technology Strategy, Technology and Manufacturing Group, Intel Corporation, Santa Clar...
متن کاملHighly anisotropic quasiparticle interference patterns in the spin-density wave state of the iron pnictides
We investigate the impurity scattering induced quasiparticle interference in the (π, 0) spin-density wave phase of the iron pnictides. We use a five orbital tight binding model and our mean field theory in the clean limit captures key features of the Fermi surface observed in angle-resolved photoemission. We use a t-matrix formalism to incorporate the effect of doping induced impurities on this...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2006
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.2259813