Pressure dependent intermediate valence behavior in YbNiGa${}_4$ and YbNiIn${}_4$

Z. E. Brubaker, R. L. Stillwell, P. Chow +12

We report a comprehensive structural and valence study of the intermediate valent materials YbNiGa${}_4$ and YbNiIn${}_4$ under pressures up to 60 GPa. YbNiGa${}_4$ undergoes a smo…