Quantum spin liquid and electric quadrupolar states of single crystal Tb${}_{2+x}$Ti${}_{2-x}$O${}_{7+y}$

M. Wakita, T. Taniguchi, H. Edamoto +2

The ground states of the frustrated pyrochlore oxide Tb${}_{2+x}$Ti${}_{2-x}$O${}_{7+y}$, sensitively depending on the small off-stoichiometry parameter $x$, have been studied by specifi…