Domain observation during direct overwrite on magneto-optical recording films
Journal Article
·
· Appl. Phys. Lett.; (United States)
Domain patterns were observed with a polarized microscope during direct thermomagnetic overwrite at a fixed bias magnetic field. The size of a recorded domain can be changed reversibly by irradiation of laser pulses with various durations. By scanning a rapidly pulsed laser beam on a film, a stripe domain can be written, erased, and manipulated. This technique may be used in a new type of rewritable memory device. These overwrite behaviors can be explained with a model which assumes that an initial domain formed during laser pulse heating shrinks during cooling.
- Research Organization:
- Central Research Laboratory, Hitachi, Ltd., Kokubunji, Tokyo 185, Japan (JP)
- OSTI ID:
- 5890178
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 55:3; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
COBALT ALLOYS
CURIE POINT
DOMAIN STRUCTURE
ELECTROMAGNETIC RADIATION
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
FILMS
HEATING
IRON ALLOYS
IRON BASE ALLOYS
LASER RADIATION
LASER-RADIATION HEATING
MAGNETISM
MAGNETO-OPTICAL EFFECTS
MAGNETRONS
MEDIUM TEMPERATURE
MEMORY DEVICES
MICROSCOPY
MICROWAVE EQUIPMENT
MICROWAVE TUBES
NITRIDES
NITROGEN COMPOUNDS
OPTICAL MICROSCOPY
PHYSICAL PROPERTIES
PLASMA HEATING
PNICTIDES
POLARIZATION
RADIATIONS
RARE EARTH ALLOYS
RECORDING SYSTEMS
SILICON COMPOUNDS
SILICON NITRIDES
SPUTTERING
TERBIUM ALLOYS
THERMODYNAMIC PROPERTIES
THERMOMAGNETISM
THIN FILMS
TRANSITION TEMPERATURE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
COBALT ALLOYS
CURIE POINT
DOMAIN STRUCTURE
ELECTROMAGNETIC RADIATION
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
FILMS
HEATING
IRON ALLOYS
IRON BASE ALLOYS
LASER RADIATION
LASER-RADIATION HEATING
MAGNETISM
MAGNETO-OPTICAL EFFECTS
MAGNETRONS
MEDIUM TEMPERATURE
MEMORY DEVICES
MICROSCOPY
MICROWAVE EQUIPMENT
MICROWAVE TUBES
NITRIDES
NITROGEN COMPOUNDS
OPTICAL MICROSCOPY
PHYSICAL PROPERTIES
PLASMA HEATING
PNICTIDES
POLARIZATION
RADIATIONS
RARE EARTH ALLOYS
RECORDING SYSTEMS
SILICON COMPOUNDS
SILICON NITRIDES
SPUTTERING
TERBIUM ALLOYS
THERMODYNAMIC PROPERTIES
THERMOMAGNETISM
THIN FILMS
TRANSITION TEMPERATURE