Photo-induced insulator-metal phase transition observed by the terahertz pump-probe spectroscopy

2009 ◽  
Author(s):  
Makoto Nakajima ◽  
Naoko Takubo ◽  
Zenji Hiroi ◽  
Yutaka Ueda ◽  
Tohru Suemoto
Keyword(s):  
Phase Transition ◽  
Metal Phase ◽  
Pump Probe ◽  
Metal Phase Transition ◽  
Probe Spectroscopy

Photoinduced Solid Phase Transformation in Vanadium Dioxide Films

2005 ◽  
Vol 905 ◽  
Author(s):  
Sergiy Lysenko ◽  
Valentin Vikhnin ◽  
Armando Rua ◽  
Felix Fernandez ◽  
Huimin Liu
Keyword(s):  
Phase Transition ◽  
Vanadium Dioxide ◽  
Solid Phase ◽  
Relaxation Processes ◽  
Optical Pump ◽  
Pump Probe ◽  
Optical Generation ◽  
Metal Phase Transition ◽  
Solid Phase Transformation ◽  
Probe Spectroscopy

AbstractLaser induced insulator-to-metal phase transition in VO2 thin films was explored using femtosecond optical pump-probe spectroscopy. The transient reflection and relaxation processes in VO2 were observed during phase transition on 10-11 - 10-9 temporal-scale. Optical generation of carriers in VO2 initiates extremely fast changes in reflectivity which is strongly dependent on pump fluence. Analysis of transient optical properties allows suggesting the excitonic-controlled mechanism responsible for the light-induced phase transition in VO2.

Influence of light on the antiferromagnetic-insulator—ferromagnetic-metal phase transition in Pr0.6La0.1Ca0.3MnO3 thin films

2004 ◽  
Vol 30 (12) ◽  
pp. 948-955 ◽  
Author(s):  
P. Aleshkevych ◽  
M. Baran ◽  
R. Szymczak ◽  
H. Szymczak ◽  
V. A. Bedarev ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Ferromagnetic Metal ◽  
Metal Phase ◽  
Metal Phase Transition
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