Pressure-Induced Valence Crossover and Novel Metamagnetic Behavior near the Antiferromagnetic Quantum Phase Transition of YbNi${}_3$Ga${}_9$

K. Matsubayashi, T. Hirayama, T. Yamashita +7

We report electrical resistivity, ac magnetic susceptibility and X-ray absorption spectroscopy measurements of intermediate valence YbNi${}_3$Ga${}_9$ under pressure and magnetic f…