Mass-Enhanced Fermi Liquid Ground State in Na${}_{1.5}$Co${}_2$O${}_4$

K. Miyoshi, E. Morikuni, K. Fujiwara +2

Magnetic, transport, and specific heat measurements have been performed on layered metallic oxide Na${}_{1.5}$Co${}_2$O${}_4$ as a function of temperature $T$. Below a characteristic tem…