DocumentCode
444266
Title
Ultrafast demagnetization in ferromagnetic InMnAs
Author
Wang, J. ; Sun, C. ; Kono, J. ; Owia, A. ; Munekata, H.
Author_Institution
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Volume
2
fYear
2005
fDate
22-27 May 2005
Firstpage
733
Abstract
We have studied demagnetization processes in ferromagnetic InMnAs induced by femtosecond mid-infrared laser pulses. At high pump fluences, complete magnetization quenching was observed within a few picoseconds, implying an ultrafast ferro- to paramagnetic phase transition.
Keywords
III-V semiconductors; demagnetisation; ferromagnetic materials; ferromagnetic-paramagnetic transitions; high-speed optical techniques; indium compounds; laser beam effects; manganese compounds; InMnAs; demagnetization process; femtosecond mid-infrared laser pulse; ferromagnetic InMnAs; magnetization quenching; paramagnetic phase transition; ultrafast demagnetization; ultrafast ferromagnetic phase transition; Delay effects; Demagnetization; Laser transitions; Magnetic field measurement; Magnetization; Optical pulses; Paramagnetic materials; Reflectivity; Temperature; Ultrafast optics;
fLanguage
English
Publisher
ieee
Conference_Titel
Quantum Electronics and Laser Science Conference, 2005. QELS '05
Print_ISBN
1-55752-796-2
Type
conf
DOI
10.1109/QELS.2005.1548920
Filename
1548920
Link To Document