Novel Quantum Criticality in CeRu$_2$Si$_2$ near Absolute Zero Observed by Thermal Expansion and Magnetostriction

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dc.creatorYoshida, J.
dc.creatorAbe, S.
dc.creatorTakahashi, D.
dc.creatorSegawa, Y.
dc.creatorKomai, Y.
dc.creatorTsujii, H.
dc.creatorMatsumoto, K.
dc.creatorSuzuki, H.
dc.creatorŌnuki, Y.
dc.date2008-10-10
dc.date2008-12-19
dc.date.accessioned2026-07-07T12:20:09Z
dc.date.available2026-07-07T12:20:09Z
dc.descriptionWe report linear thermal expansion and magnetostriction measurements for CeRu$_2$Si$_2$ in magnetic fields up to 52.6 mT and at temperatures down to 1 mK. At high temperatures, this compound showed Landau-Fermi-liquid behavior: The linear thermal expansion coefficient and the magnetostriction coefficient were proportional to the temperature and magnetic field, respectively. In contrast, a pronounced non-Fermi-liquid effect was found below 50 mK. The negative contribution of thermal expansion and magnetostriction suggests the existence of an additional quantum critical point.
dc.identifierhttps://arxiv.org/abs/0810.1791
dc.identifierhttp://arxiv.org/abs/0810.1791
dc.identifierPhys. Rev. Lett. 101, 256402 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.256402
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/212991
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleNovel Quantum Criticality in CeRu$_2$Si$_2$ near Absolute Zero Observed by Thermal Expansion and Magnetostriction
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