Femtosecond thermomodulation measurements of Co/Cu and Ag/Cu multilayer films

Ding Liu, Ping He, D. R. Alexander

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Femtosecond transient reflectivities of Co/Cu and Ag/Cu multilayer films were measured to study the electron-lattice relaxation in these systems. The measurement results suggest that the thickness of Cu layers does not influence the electron relaxation time. A slow decaying signal, which is absent in Ag/Cu films, was observed in Co/Cu films and it is attributed to the spin excitations in the Co layers.

Original languageEnglish (US)
Pages (from-to)249-251
Number of pages3
JournalApplied Physics Letters
Volume62
Issue number3
DOIs
StatePublished - Dec 1 1993

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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