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.
Terahertz spectroscopy: a powerful tool to explore scaling in condensed matter
2004-01-01
87863 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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