Domain observation during direct overwrite on magneto-optical recording films.

Autor: Suzuki, Yoshio, Ohta, Norio, Takahashi, Masahiko, Yonezawa, Seiji
Předmět:
Zdroj: Applied Physics Letters; 7/17/1989, Vol. 55 Issue 3, p315, 3p
Abstrakt: 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index