PHONON PULSE REFLECTION FROM FRESHLY CLEAVED INTERFACES BETWEEN SOLIDS AND LIQUID HELIUM

J. Weber , W. Sandmann , W. Dietsche , H. Kinder

Phonon pulses of 290 GHz were reflected from solid surfaces in contact with liquid helium. The surfaces were freshly cleaved at 1K, for the first time. Surprisingly, the reflection coefficient was nearly 100 % on these almost ideal surfaces.

Domaines: Articles anciens

J. Weber, W. Sandmann, W. Dietsche, H. Kinder. PHONON PULSE REFLECTION FROM FRESHLY CLEAVED INTERFACES BETWEEN SOLIDS AND LIQUID HELIUM. Journal de Physique Colloques, 1978, 39 (C6), pp.C6-242-C6-243. ⟨10.1051/jphyscol:19786106⟩. ⟨jpa-00217509⟩