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{sup 3}He melting pressure thermometry

Journal Article · · Journal of Low Temperature Physics
DOI:https://doi.org/10.1007/BF00754593· OSTI ID:198186
; ;  [1]
  1. Univ. of Florida, Gainesville, FL (United States); and others
High-precision measurements of the {sup 3}He melting pressure versus temperature have been made from 500 {mu}K to 25 mK using a {sup 60}Co nuclear orientation primary thermometer and a Pt NMR susceptibility secondary thermometer. Temperatures for the fixed points on the melting curve are: the superfluid A transition T{sub A}=2.505 mK, the A-B transition T{sub AB}=1.948 mK, and the solid ordering temperature T{sub N}=0.934 mK. These fixed points and a functional form for P(T) constitute a convenient temperature scale, based on a primary thermometer, usable to well below 1 mK.
Sponsoring Organization:
USDOE
OSTI ID:
198186
Report Number(s):
CONF-950676--
Journal Information:
Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 1-2 Vol. 101; ISSN JLTPAC; ISSN 0022-2291
Country of Publication:
United States
Language:
English

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