FREE-ELECTRON LASER STUDY OF THE PHOTOCONDUCTIVITY IN SMB6

Authors
OHTA H MOTOKAWA M KAMINSKI J KING AR KUNII S
Citation
H. Ohta et al., FREE-ELECTRON LASER STUDY OF THE PHOTOCONDUCTIVITY IN SMB6, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 331(1-3), 1993, pp. 260-264
Citations number
9
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
331
Issue
1-3
Year of publication
1993
Pages
260 - 264
Database
ISI
SICI code
0168-9002(1993)331:1-3<260:FLSOTP>2.0.ZU;2-0
Abstract
The application of the UCSB FEL to the observation of photoconductivit y in the valence fluctuating substance SmB6 is shown. The photoconduct ivity of single crystal SmB6 was measured in the region from 30 to 105 cm-1 at 4.2 and 8 K. The FEL intensity dependence of the photoconduct ivity shows the existence of an energy gap around 100 cm-1. Two kinds of relaxation decay have been observed at 4.2 K in the weak FEL intens ity region. The relaxation processes in SmB6 are discussed.