Phys. Rev. Lett. 89, 025704 (2002) [4 pages]Origin of the High-Frequency Contributions to the Dielectric Loss in Supercooled LiquidsReceived 16 July 2001; published 24 June 2002 Dielectric loss spectra of four different glass formers revealing either β relaxation or excess wing are presented. We compare the effect of pressure and temperature on the mentioned processes. Our findings suggest that the excess wing and the β relaxation cannot be treated on the same footing. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.025704
DOI:
10.1103/PhysRevLett.89.025704
PACS:
64.70.Pf, 77.22.Gm
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