We found a plateau in the magnitude of the isolated magnetic moments as a function of the anisotropy of the transfer integral ($t^{\prime }/t$) in the gapless quantum spin liquid (QSL) phase of an $S=1/2$ triangular lattice molecular solid $X{\left[\mathrm{Pd}{\left(\mathrm{dmit}\right)}_2\right]}_2$, accomplished by a fine tuning of $t^{\prime }/t$ through the mixing of cations, $X$. In contrast, the magnetic susceptibility at the lowest temperature in the QSL phase parametrized by $t^{\prime }/t$ evinces an unconventional suppression approaching the quantum phase transition, implying significant critical fluctuations.

Close

PrevNext

View figure in article

• Magnetic susceptibility
• Phase diagrams
• Quantum phase transitions
• Quantum spin liquid