Negative absolute temperatures
Journal Article
·
· Sci. Am.; (United States)
It is pointed out that there are a few physical systems whose temperature when measured on an absolute scale can assume negative values. Such temperatures are not colder than absolute zero; a system with a negative temperature can give heat to one at an infinite temperature and is therefore hotter. The mechanism for such negative temperatures is described, the main idea of which involves the orientation of the nuclear spins within the crystal lattice. (JFP)
- OSTI ID:
- 6796844
- Journal Information:
- Sci. Am.; (United States), Journal Name: Sci. Am.; (United States) Vol. 239:2; ISSN SCAMA
- Country of Publication:
- United States
- Language:
- English
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