Antiferromagnetic ordering in silver at picokelvin temperatures

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Abstract

Silver nuclei form an antiferromagnetic spin system in which the conduction-electron-mediated indirect Ruderman-Kittel exchange interaction dominates over the nuclear dipolar forces. We have studied magnetic ordering by measuring the dynamic susceptibility of polycrystalline silver foils down to about 0.5 nK (S > 0.4 R In2) using SQUID-NMR techniques. We obtain Tc=(560±60) pK for the transition temperature at B = 0 and Bc = 100 μT for the critical field extrapolated to T = 0.

Details

Original languageEnglish
Pages (from-to)903-904
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume104-107
Issue numberPART 2
Publication statusPublished - 2 Feb 1992
MoE publication typeA1 Journal article-refereed

    Research areas

  • antiferromagnetic order, nuclear spins, picokelvin temperatures

ID: 4380276