Journal/Book/Conference Title Title
Physical Review Letters
We report a Raman scattering study of low-temperature, pressure-induced melting of the charge-density- wave (CDW) phase of 1T-TiSe2. Our measurements reveal that the collapse of the CDW state occurs in three stages: (i) For P<5 kbar, the pressure dependence of the CDW amplitude mode energies and intensities are indicative of a ‘‘crystalline’’ CDW regime; (ii) for 5<P<25 kbar, there is a decrease in the CDW amplitude mode energies and intensities with increasing pressure that suggests a regime in which the CDW softens, and exhibits enhanced fluctuations; and (iii) for P > 25 kbar, the absence of amplitude modes reveals a metallic regime in which the CDW has melted.
Department of Physics
Original Publication Date
DOI of published version
UNI ScholarWorks, University of Northern Iowa, Rod Library
©2003 C.S. Snow, J.F. Karpus, S.L.Cooper, T.E. Kidd, and T.-C. Chiang. The copyright holder has granted permission for posting.
Snow, C. S.; Karpus, J. F.; Cooper, S. L.; Kidd, T. E.; and Chiang, T.-C., "Quantum Melting of the Charge-Density-Wave State in 1T-TiSe2" (2003). Faculty Publications. 16.