Journal ArticleDOI
On the feasibility of production of microkelvin temperature by nuclear demagnetisation
M N Mukherjee,R K Kar,T R Bose +2 more
TLDR
In this paper, an attempt has been made to show that PrBe13, a Van-Vleck paramagnet, can be used to produce a lattice temperature of 10µK. or lower.Abstract:
Nuclear demagnetisation as a means of refrigeration has been proposed and achieved long ago. In this paper an attempt has been made to show that PrBe13, a Van-Vleck paramagnet, can be used to produce a lattice temperature of 10µK. or lower. Such a calculation can be used for a computer simulation of the process.read more
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Book ChapterDOI
Rare earth and actinide beryllides: Structural chemistry and physical properties
TL;DR: The structural chemistry of beryllium intermetallic compounds is governed by the small atomic radius, low valence electron count and covalent bonding character of BER as discussed by the authors.
References
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Journal ArticleDOI
Electronic properties of beryllides of the rare earth and some actinides
TL;DR: In this paper, a magnetic study has been conducted of 17 beryllides of the form $M{\mathrm{Be}}_{13}$, $M$ being a rare earth, Th, U, and an alloy, and the expected nuclear cooling and ordering behavior is also thoroughly discussed.
Journal ArticleDOI
OBSERVATION OF COOPERATIVE NUCLEAR MAGNETIC ORDER IN PrCu$sub 2$ BELOW 54 mK.
TL;DR: In this paper, magnetic-susceptibility and specific-heat measurements in Van Vleck paramagnetic Pr${\mathrm{Cu}}_{2}$ down to 30 mK reveal that the Pr nuclei enter an antiferromagnetically ordered state below 54 mK.
Journal ArticleDOI
Relaxation Rates of Excited Nuclei in Liquid Metals
TL;DR: In this paper, the quadrupole relaxation rate τQ-1 in these metals, except in Tl, could be observed as the dominant contribution to the total rate at lower temperatures.
Journal ArticleDOI
Nuclear refrigeration of copper
TL;DR: In this paper, a conduction electron temperature of 0.37 mK, significantly lower than before, was achieved, and the nuclear stage could be kept below 2 mK for 12 hours.
Journal ArticleDOI
NUCLEAR COOLING IN PrPt$sub 5$ AND PrTl$sub 3$ TO BELOW 5 mdeg K.
K. Andres,E. Bucher +1 more