Numerical study on inductive detection of magnetostatic spin wave packet

Author

Nakashima, Yusuke ; Nagai, Keita ; Tanaka, Terumitsu ; Matsuyama, Kimihide ; Nozaki, Yukio

Author_Institution

Grad. Sch. of Inf. Sci. & Electr. Eng., Kyushu Univ., Fukuoka, Japan

fYear

2010

fDate

21-24 Nov. 2010

Firstpage

1894

Lastpage

1897

Abstract

Fundamental operations in magneto-static spin wave devices of nucleation, propagation and inductive detection for a spin wave packets (magnetic solitons) are numerically studied by using micromagnetic simulations. The collective spin dynamics and device performances are compared for three different spin wave modes. Simulation results of the group velocity reasonably agree with the theoretical prediction under a thin film approximation. Structural and operational parameters are optimized so as to maximize the inductive output voltage V_out. The practical V_out of 0.052 mV/μm² is obtained at optimized parameters in a spin wave mode of magneto-static backward volume wave.

Keywords

magnetic thin film devices; magnetostatic surface waves; magnetostatic wave devices; nucleation; numerical analysis; spin dynamics; spin waves; collective spin dynamics; device performances; group velocity; inductive detection; inductive output voltage; magnetic solitons; magneto-static backward volume wave; magnetostatic spin wave packet; micromagnetic simulations; nucleation; operational parameters; structural parameters; thin film approximation; group velocity; magneto static backward volume wave; magneto static forward volume wave; magneto static surface wave;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2010 - 2010 IEEE Region 10 Conference

Conference_Location

Fukuoka

ISSN

pending

Print_ISBN

978-1-4244-6889-8

Type

conf

DOI

10.1109/TENCON.2010.5686411

Filename

5686411