Magneto-Optical Readout from a Magnetized Nonspecular Oxide Surface
- 1 April 1963
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 34 (4), 1110-1111
- https://doi.org/10.1063/1.1729391
Abstract
This paper describes a magneto‐optical method for obtaining visual display and electronic readout of magnetic information recorded on a nonspecular oxide surface. A recorded oxide surface is placed in contact with a specular ferromagnetic surface, an external magnetic field is applied normal to the two surfaces in contact; and the recorded information is read out by means of the Kerr effect through the back of the specular surface. The method is a useful tool for studying defects in the writing process independently of the reading process in investigations of magnetic recording on oxide surfaces. It was observed that when the external field was applied, the magnetic pattern was either sharpened or caused to spread, depending on the polarity of the field.Keywords
This publication has 5 references indexed in Scilit:
- Magnetic Writing on Thin Films of MnBiJournal of Applied Physics, 1957
- Theory of the Faraday and Kerr Effects in FerromagneticsPhysical Review B, 1955
- The Mechanism of Colloid Agglomeration in the Formation of Bitter PatternsProceedings of the Physical Society. Section A, 1950
- Theory of the Formation of Powder Patterns on Ferromagnetic CrystalsPhysical Review B, 1949
- Magnetic Domain Patterns on Single Crystals of Silicon IronPhysical Review B, 1949