Power Law Decay and Phase Rigidity for large-amplitude Coherent Phonons in Bismuth at Helium Temperature: Possible Evidence for Transient Supersolid State


O.V. Misochko;M.V. Lebedev

Key Words

Chinese Journal of Physics

Volume or Term/Year and Month of Publication

49卷1期(2011 / 02 / 01)

Page #

141 - 150

Content Language


English Abstract

Intense ultrafast laser excitation can produce transient states of condensed matter that would otherwise be inaccessible. At high excitation level, the interatomic forces can be altered, resulting in an unusual lattice dynamics. Here we report the study of coherent lattice dynamics in Bi made for various excitation levels at helium temperature. We demonstrate that under certain conditions, the fully symmetric phonons of large amplitude exhibit anomalous decay and phase rigidity, both of which possibly signaling the attainment of transient supersolid state.

Topic Category 基礎與應用科學 > 物理
Times Cited
  1. 朱秦億(2004)。鈀及鈀銀複合膜之製備、特性分析及其氫/氮選透性之研究。成功大學化學工程學系學位論文。2004。1-166。