Novel Quantum Criticality in CeRu$ 2$Si$ 2$ near Absolute Zero Observed by Thermal Expansion and Magnetostriction - Condensed Matter > Strongly Correlated ElectronsReport as inadecuate




Novel Quantum Criticality in CeRu$ 2$Si$ 2$ near Absolute Zero Observed by Thermal Expansion and Magnetostriction - Condensed Matter > Strongly Correlated Electrons - Download this document for free, or read online. Document in PDF available to download.

Abstract: We report linear thermal expansion and magnetostriction measurements forCeRu$ 2$Si$ 2$ in magnetic fields up to 52.6 mT and at temperatures down to 1mK. At high temperatures, this compound showed Landau-Fermi-liquid behavior:The linear thermal expansion coefficient and the magnetostriction coefficientwere proportional to the temperature and magnetic field, respectively. Incontrast, a pronounced non-Fermi-liquid effect was found below 50 mK. Thenegative contribution of thermal expansion and magnetostriction suggests theexistence of an additional quantum critical point.



Author: J. Yoshida, S. Abe, D. Takahashi, Y. Segawa, Y. Komai, H. Tsujii, K. Matsumoto, H. Suzuki, Y. Ōnuki

Source: https://arxiv.org/



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