Nuclear magnetism in silver at positive and negative absolute temperatures in the low nanokelvin range

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Hakonen, Pertti J.
dc.contributor.author Yin, S.
dc.contributor.author Lounasmaa, O. V.
dc.date.accessioned 2015-09-14T09:01:21Z
dc.date.available 2015-09-14T09:01:21Z
dc.date.issued 1990
dc.identifier.citation Hakonen, Pertti J. & Yin, S. & Lounasmaa, O. V. 1990. Nuclear magnetism in silver at positive and negative absolute temperatures in the low nanokelvin range. Physical Review Letters. Volume 64, Issue 22. 2707-2710. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.64.2707 en
dc.identifier.issn 0031-9007 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/17657
dc.description.abstract We have investigated the susceptibility and entropy in the thermally isolated system of silver nuclei down to 0.8 nK and, at negative temperatures, up to -4.3 nK. Low-frequency SQUID-NMR techniques were employed to measure the dynamic sysceptibility. Curie-Weiss behavior was observed for the static susceptibility both at T>0 and T<0; for FTHETA we deduce -4.4±1.0 nK. Our results show directly that antiferromagnetic nuclear alignment at positive temperatures transforms into ferromagnetic orientation at T<0 in the nuclear-spin system of silver, dominated by exchange interaction. en
dc.format.extent 2707-2710
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society (APS) en
dc.relation.ispartofseries Physical Review Letters en
dc.relation.ispartofseries Volume 64, Issue 22
dc.rights © 1990 American Physical Society (APS). This is the accepted version of the following article: Hakonen, Pertti J. & Yin, S. & Lounasmaa, O. V. 1990. Nuclear magnetism in silver at positive and negative absolute temperatures in the low nanokelvin range. Physical Review Letters. Volume 64, Issue 22. 2707-2710. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.64.2707, which has been published in final form at http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.64.2707. en
dc.subject.other Physics en
dc.title Nuclear magnetism in silver at positive and negative absolute temperatures in the low nanokelvin range en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Physical Society (APS)
dc.contributor.school Perustieteiden korkeakoulu fi
dc.contributor.school School of Science en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.contributor.department Department of Applied Physics en
dc.subject.keyword nuclear magnetism en
dc.subject.keyword positive temperatures en
dc.subject.keyword negative temperatures en
dc.subject.keyword nanokelvin temperatures en
dc.identifier.urn URN:NBN:fi:aalto-201509144262
dc.type.dcmitype text en
dc.identifier.doi 10.1103/physrevlett.64.2707
dc.type.version Final published version en


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