Nuclear antiferromagnetism in rhodium metal at positive and negative nanokelvin temperatures

P. J. Hakonen; R. T. Vuorinen; J. E. Martikainen

doi:10.1103/PhysRevLett.70.2818

Nuclear antiferromagnetism in rhodium metal at positive and negative nanokelvin temperatures

P. J. Hakonen^*, R. T. Vuorinen, J. E. Martikainen

^*Corresponding author for this work

Department of Applied Physics

Research output: Contribution to journal › Article › Scientific › peer-review

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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

Original language	English
Pages (from-to)	2818-2821
Number of pages	4
Journal	Physical Review Letters
Volume	70
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevLett.70.2818
Publication status	Published - May 1993
MoE publication type	A1 Journal article-refereed

Keywords

antiferromagnetism
negative temperatures
nuclear ordering

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10.1103/PhysRevLett.70.2818

PhysRevLett.70.2818Final published version, 218 KB

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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",

keywords = "antiferromagnetism, negative temperatures, nuclear ordering, antiferromagnetism, negative temperatures, nuclear ordering, antiferromagnetism, negative temperatures, nuclear ordering",

author = "Hakonen, {P. J.} and Vuorinen, {R. T.} and Martikainen, {J. E.}",

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AB - 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

KW - antiferromagnetism

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KW - nuclear ordering

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KW - negative temperatures

KW - nuclear ordering

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Nuclear antiferromagnetism in rhodium metal at positive and negative nanokelvin temperatures

Abstract

Keywords

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