Title :
Terahertz spectroscopy: a powerful tool to explore scaling in condensed matter
Author :
Pronin, A.V. ; Romijn, I.G. ; Brom, H.B.
Author_Institution :
Kamerlingh Onnes Lab., Leiden Univ., Netherlands
fDate :
Sept. 27 2004-Oct. 1 2004
Abstract :
Summary form only given. The universal laws of complex systems close to phase transitions can often be expressed by scaling relations. We measured quantum phase transition metal-insulator-transition (MIT) in yttrium hydride. Yttrium hydride YH/sub x/ shows a remarkable transitions of its electronic and optical properties upon change of hydrogen concentration. Also we demonstrate that terahertz spectroscopy is a perfect tool to explore the frequency-temperature scaling in condensed matter.
Keywords :
electron density; high-frequency effects; metal-insulator transition; submillimetre wave spectra; thin films; yttrium compounds; Al/sub 2/O/sub 3/; YH/sub x/; condensed matter scaling; electronic properties; frequency temperature scaling relations; hydrogen concentration; metal-insulator-transition; optical properties; quantum phase transition; terahertz spectroscopy; ultraviolet spectra; yttrium hydride; Dielectric substrates; Fluctuations; Frequency; Insulation; Metal-insulator structures; Optical films; Spectroscopy; Temperature; Thermal conductivity;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Conference_Location :
Karlsruhe, Germany
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422048
