Spin-wave quantization in ferromagnetic nickel nanowires |
| |
Authors: | Wang Z K Kuok M H Ng S C Lockwood D J Cottam M G Nielsch K Wehrspohn R B Gösele U |
| |
Institution: | Department of Physics, National University of Singapore, Singapore 117542, Republic of Singapore. |
| |
Abstract: | The dynamical properties of uniform two-dimensional arrays of nickel nanowires have been investigated by inelastic light scattering. Multiple spin waves are observed that are in accordance with dipole-exchange theory predictions for the quantization of bulk spin waves. This first study of the spin-wave dynamics in ferromagnetic nanowire arrays reveals strong mode quantization effects and indications of a subtle magnetic interplay between nanowires. The results show that it is important to take proper account of these effects for the fundamental physics and future technological developments of magnetic nanowires. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |