Magnetic permeability imaging of metals with a scanning near-field microwave microscope

Authors
Lee, SC Vlahacos, CP Feenstra, BJ Schwartz, A Steinhauer, DE Wellstood, FC Anlage, SM
Citation
Sc. Lee et al., Magnetic permeability imaging of metals with a scanning near-field microwave microscope, APPL PHYS L, 77(26), 2000, pp. 4404-4406
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
77
Issue
26
Year of publication
2000
Pages
4404 - 4406
Database
ISI
SICI code
0003-6951(200012)77:26<4404:MPIOMW>2.0.ZU;2-#
Abstract
We describe a scanning near-field microwave microscope which uses a loop pr obe to measure local magnetic properties of metallic samples on a length sc ale of 200 mum. We demonstrate imaging at 6 GHz through spatiallyresolved f erromagnetic resonance experiments on a single crystal of the colossal magn eto-resistive material La0.8Sr0.2MnO3. We find the experimental results are qualitatively and quantitatively well described by a simple model of the s ystem. (C) 2000 American Institute of Physics. [S0003- 6951(00)03951-6].