Author/Authors :
Zhu، نويسنده , , Z. and Musfeldt، نويسنده , , J.L. and Wang، نويسنده , , Y.J. and Sarrao، نويسنده , , Kevan J. and Fisk، نويسنده , , Z. and Negishi، نويسنده , , H. and Inoue، نويسنده , , M.، نويسنده ,
Abstract :
We report far-infrared transmission measurements of η-Mo4O11 at temperatures above and below the two charge-density-wave (CDW) transitions at 109 and 35 K. We analyze the exotic splitting patterns of the vibrational features in terms of the nature of the structural distortions. Data on γ-Mo4O11, is also shown to compare with the η-phase material. Preliminary far-infrared reflectance spectra of η-Mo4O11 taken in the presence of an external magnetic field is also presented.
Keywords :
metal-insulator phase transition , Structural phase transition , Magnetic measurements , infrared and Raman spectroscopy
