Cold Metal Clusters: Helium Droplets as a Nanoscale Cryostat

Journal Article · Tue Oct 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.3525· OSTI ID:388410

Bartelt, A; Close, J D; Federmann, F; Quaas, N; Toennies, J P ^[1]

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1. Max-Planck-Institut fuer Stroemungsforschung, Bunsenstrasse 10, D-37073 Goettingen (Germany)

In this Letter we study the formation of metal clusters of silver, indium, and europium embedded in helium droplets and present spectroscopic (UV) evidence that, contrary to common belief, metal atoms can be stable inside helium droplets. Our method provides a beam of metal clusters up to 2000amu with a precisely known temperature of 0.37K, 2 orders of magnitude lower than previously achieved for free metal clusters. This dramatic decrease in temperature is important for high resolution spectroscopic experiments and opens the door to beam studies of superconducting metal clusters. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 388410
• Journal Information: Physical Review Letters, Vol. 77, Issue 17; Other Information: PBD: Oct 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
SILVER
SOLID CLUSTERS
INDIUM
EUROPIUM
HELIUM
DROPLETS
CLUSTER BEAMS
CRYOSTATS