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Conferences > UP > 2014 > 07.Mon.D > 07.Mon.D.7

Competition Between Thermal and Non-Thermal Processes During Femtosecond Switching of Phase Change Materials

Lutz Waldecker, Timothy A. Miller, Miquel Rude, Valerio Pruneri, Robert Simpson, Ralph Ernstorfer, and Simon Wall

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Abstract

We use ultrafast optics and electron diffraction to measure irreversible amorphization of crystalline Ge2Sb2Te5 phase change films. We find that light directly modifies the local bonding environment leading to a hardening of bonds.

© 2014 Optical Society of America

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