Nuclear antiferromagnetism in rhodium metal at positive and negative nanokelvin temperatures

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
1993-05
Major/Subject
Mcode
Degree programme
Language
en
Pages
4
2818-2821
Series
Physical Review Letters, Volume 70, issue 18
Abstract
We have measured the dynamic susceptibility of polycrystalline rhodium foils down to 280 pK and up to -750 pK. These record-low and -high nuclear spin temperatures were reached by adiabatic demagnetization using initial polarizations of 83 and -60%. At T>0, the static susceptibility, integrated from NMR spectra, displays an antiferromagnetic Curie-Weiss law, with θ=-1.8±0.3 nK. At T
Description
Keywords
antiferromagnetism, negative temperatures, nuclear ordering
Other note
Citation
Hakonen , P J , Vuorinen , R T & Martikainen , J E 1993 , ' Nuclear antiferromagnetism in rhodium metal at positive and negative nanokelvin temperatures ' , Physical Review Letters , vol. 70 , no. 18 , pp. 2818-2821 . https://doi.org/10.1103/PhysRevLett.70.2818