High‐density thermomagnetic recording method using a scanning tunneling microscope
作者:
J. Nakamura,
M. Miyamoto,
S. Hosaka,
H. Koyanagi,
期刊:
Journal of Applied Physics
(AIP Available online 1995)
卷期:
Volume 77,
issue 2
页码: 779-781
ISSN:0021-8979
年代: 1995
DOI:10.1063/1.359000
出版商: AIP
数据来源: AIP
摘要:
A new thermomagnetic recording method using tunneling current in a scanning tunneling microscope as a heating source is proposed. In the experiment, pulse voltage of from 2–8 V with a pulse width of 1 ms is applied to the sample, while the probe position is kept at a bias voltage of 0.2 V and a tunneling current of 0.3 nA. As a result, we have demonstrated that thermally recorded magnetic domains are formed in a Pt/Co multilayered film and minimum domains as small as 0.2 &mgr;m in diameter are observed using a polarized optical microscope. ©1995 American Institute of Physics.
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