Open AccessULTRAHIGH-DENSITY DATA STORAGE ON AN ORGANIC MONOMER 3-PHENYL-1-UREIDONITRILE THIN FILM
Author(s) -
时东霞,
宋延林,
张昊旭,
解思深,
庞世瑾,
高鸿钧
Publication year - 2001
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.50.361
Subject(s) - materials science , pyrolytic carbon , substrate (aquarium) , thin film , highly oriented pyrolytic graphite , scanning tunneling microscope , voltage , electrical conductor , graphite , quantum tunnelling , optoelectronics , nanotechnology , composite material , electrical engineering , pyrolysis , organic chemistry , chemistry , oceanography , engineering , geology
Ultrahigh-density data storage on a 3-phenyl-1-ureidonitrile (PUN) thin film was performed using a scanning tunneling microscope. The recorded marks of 0.8 nm in diameter were obtained when voltage pulses of 4 V for 10ms were applied between the STM tip and highly ordered pyrolytic graphite substrate. The current-voltage relations at the local regions of the films indicate that the recorded region is conductive and the unrecorded region is in a high impedance state. A possible mechanism of this data storage was suggested and discussed.