Negative Heat Capacity for a Cluster of 147 Sodium Atoms

Autor:	Robert Kusche, Thomas Hippler, Bernd von Issendorff, Hellmut Haberland, Jörn Donges, Werner Kronmüller, Martin Schmidt
Jazyk:	angličtina
Rok vydání:	2001
Předmět:	Materials science chemistry Sodium Physics::Atomic and Molecular Clusters Cluster (physics) General Physics and Astronomy chemistry.chemical_element Thermodynamics Heat capacity Computer Science::Databases Lower temperature
DOI:	10.17877/de290r-12435
Popis:	There exists a surprising theoretical prediction for a small system: its microcanonical heat capacity can become negative. An increase of energy can-under certain conditions-lead to a lower temperature. Here we present experimental evidence that a cluster containing exactly 147 sodium atoms does indeed have a negative microcanonical heat capacity near its solid to liquid transition.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b7eb0b482e119130da74ee340fb21c2 Zobrazit plný text záznamu