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Title: Writing magnetic patterns with surface acoustic waves

A novel patterning technique that creates magnetization patterns in a continuous magnetostrictive film with surface acoustic waves is demonstrated. Patterns of 10 μm wide stripes of alternating magnetization and a 3 μm dot of reversed magnetization are written using standing and focusing acoustic waves, respectively. The magnetization pattern is size-tunable, erasable, and rewritable by changing the magnetic field and acoustic power. This versatility, along with its solid-state implementation (no moving parts) and electronic control, renders it as a promising technique for application in magnetic recording, magnonic signal processing, magnetic particle manipulation, and spatial magneto-optical modulation.
Authors:
; ; ;  [1]
  1. School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, Oregon 97331 (United States)
Publication Date:
OSTI Identifier:
22273886
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DATA PROCESSING; FILMS; MAGNETIC FIELDS; MAGNETIC MATERIALS; MAGNETIZATION; MAGNETO-OPTICAL EFFECTS; MAGNETOSTRICTION; MAGNONS; MODULATION; PARTICLES; SOUND WAVES; SURFACES