%0 Book Section %1 statphys23_0575 %A Ekimoto, T. %A Yoshimori, A. %A Odagaki, T. %B Abstract Book of the XXIII IUPAP International Conference on Statistical Physics %C Genova, Italy %D 2007 %E Pietronero, Luciano %E Loreto, Vittorio %E Zapperi, Stefano %K energy free glass landscape statphys23 topic-9 transition %T Relaxation processes in the Free Energy Landscape %U http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=575 %X We present a phenomenological understanding of three relaxation processes; fast, slow and Johari-Goldstein(JG) in glass forming substances on the basis of the Free Energy Landscape(FEL). The representative point in the FEL is assumed to obey the time dependent Ginzburg-Landau(TDGL) type equation with the FEL as the driving force. We analyze the generalized susceptibility for a toy model of the FEL. We demonstrate that fast and slow relaxations are determined by the oscillatory motion within a basin and the jump motion among basins, respectively and that the relaxation time of these relaxations is determined by the curvature of the FEL around a local minimum and the depth of the FEL, respectively. We also demonstrate that JG relaxation is determined by the minor modulations of the FEL which is produced by the internal degree of freedom of constituents.

@incollection{statphys23_0575, abstract = {We present a phenomenological understanding of three relaxation processes; fast, slow and Johari-Goldstein(JG) in glass forming substances on the basis of the Free Energy Landscape(FEL). The representative point in the FEL is assumed to obey the time dependent Ginzburg-Landau(TDGL) type equation with the FEL as the driving force. We analyze the generalized susceptibility for a toy model of the FEL. We demonstrate that fast and slow relaxations are determined by the oscillatory motion within a basin and the jump motion among basins, respectively and that the relaxation time of these relaxations is determined by the curvature of the FEL around a local minimum and the depth of the FEL, respectively. We also demonstrate that JG relaxation is determined by the minor modulations of the FEL which is produced by the internal degree of freedom of constituents.}, added-at = {2007-06-20T10:16:09.000+0200}, address = {Genova, Italy}, author = {Ekimoto, T. and Yoshimori, A. and Odagaki, T.}, biburl = {https://www.bibsonomy.org/bibtex/254c8e295266c227488d61c054ec7922b/statphys23}, booktitle = {Abstract Book of the XXIII IUPAP International Conference on Statistical Physics}, editor = {Pietronero, Luciano and Loreto, Vittorio and Zapperi, Stefano}, interhash = {46e65807cfacdf6320b73d8180e226f4}, intrahash = {54c8e295266c227488d61c054ec7922b}, keywords = {energy free glass landscape statphys23 topic-9 transition}, month = {9-13 July}, timestamp = {2007-06-20T10:16:24.000+0200}, title = {Relaxation processes in the Free Energy Landscape}, url = {http://st23.statphys23.org/webservices/abstract/preview_pop.php?ID_PAPER=575}, year = 2007 }