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

J. Yoshida, S. Abe, D. Takahashi +6

We 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, thi…