Title :
Photoexcited carrier dynamics in antiferromagnetic MnO studied by optical-pump THz-probe spectroscopy
Author :
Nishitani, Junichi ; Nagashima, Takeshi ; Hangyo, Masanori
Author_Institution :
Inst. of Laser Eng., Osaka Univ., Suita, Japan
Abstract :
We performed optical-pump terahertz-probe measurements on antiferromagnetic MnO. The transient decrease in transmission at the peak of THz single-cycle pulses suggests that photoexcited carriers are produced in MnO. Below the Neel temperature, magnon scattering mainly contributes the relaxation of photoexcited carriers.
Keywords :
Neel temperature; antiferromagnetic materials; carrier relaxation time; magnons; manganese compounds; optical pumping; terahertz wave spectra; MnO; Neel temperature; antiferromagnetic material; magnon scattering; optical-pump terahertz-probe spectroscopy; photoexcited carrier dynamics; photoexcited carrier relaxation; terahertz single-cycle pulses; Optical pulses; Optical pumping; Optical scattering; Temperature measurement; Ultrafast optics;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380229
