Minimal Phase-Change Marks Produced in Amorphous Ge2Sb2Te5 Films
Minimal Phase-Change Marks Produced in Amorphous Ge2Sb2Te5 Films
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DOI:
10.1143/jjap.43.l818
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发表时间:
2004-06
影响因子:
1.5
通讯作者:
T. Gotoh;K. Sugawara;Keiji Tanaka
中科院分区:
文献类型:
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作者:
T. Gotoh;K. Sugawara;Keiji Tanaka
The smallest mark which can be produced in phase-change recordings has been explored using an atomic force microscope. Electrical pulses applied to amorphous Ge2Sb2Te5 films through conducting cantilevers can produce crystalline marks, the size decreasing with decreases in input power, pulse duration, and film thickness. The smallest mark obtained is ∼10 nm in diameter in a film with thickness of ∼1 nm. Formation mechanism of the mark is discussed.