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Electron Phase Microscopy of Magnetic Fields in Ferromagnets and Superconductors

Published online by Cambridge University Press:  17 June 2011

Akira Tonomura
Akira Tonomura*
Affiliation:
Advanced Science Institute, RIKEN, Wako, Saitama 351-0198, Japan Advanced Research Laboratory, Hitachi, Ltd., Hatoyama, Saitama 350-0395, Japan Initial Research Project, Okinawa Institute of Science and Technology, Kunigami, Okinawa 904-0411, Japan E-mail: akira.tonomura.zk@hitachi.com
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Abstract

Highly sensitive electron phase microscopy based on the Aharonov-Bohm (AB) effect principle has been used to observe microscopic distributions of magnetic fields in ferromagnets and superconductors. The observation examples include the unconventional behaviors of interlayer Josephson vortices in anisotropic layered high-Tc superconducting YBa2Cu3O7-δ (YBCO) thin films, which are produced when the applied magnetic field is greatly tilted to the layer plane, and the magnetic-field distributions of tiny magnetic heads for perpendicular recording and of colossal magnetoresistance (CMR) materials.

Keywords

superconductingelectron microprobemagnetic
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1318: Symposium SS/TT/UU/VV – Advances in Spectroscopy and Imaging of Surfaces and Nanostructures , 2011 , mrsf10-1318-ss06-01
Copyright
Copyright © Materials Research Society 2011

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References

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