论文标题
在稀释的三角形晶格中，Spin-1/2合作Paramagnet的签名
Signatures of a spin-1/2 cooperative paramagnet in the diluted triangular lattice of Y$_2$CuTiO$_6$
论文作者
论文摘要
我们介绍了在50％位点稀释的三角形晶格旋转1/2系统中的疾病驱动动态合作paramagnet的热力学和动态实验特征的组合，y $ _2 $ cutio $ _6 $。磁性排序和旋转冷冻不存在至50 MK，远低于〜-134 K的居里魏斯尺度。我们观察到磁场和温度依赖性磁热容量和磁化数据的缩放崩溃，符合随机单体物理学的预期。我们的实验建立了对任何冰冻量表的抑制，如果目前的抑制量表，则通过三个以上的数量级，开放了许多有趣的可能性，例如稳定型稳定的远距离量子纠缠的基态。
We present a combination of thermodynamic and dynamic experimental signatures of a disorder driven dynamic cooperative paramagnet in a 50% site diluted triangular lattice spin-1/2 system, Y$_2$CuTiO$_6$. Magnetic ordering and spin freezing are absent down to 50 mK, far below the Curie Weiss scale of ~-134 K. We observe scaling collapses of the magnetic field- and temperature-dependent magnetic heat capacity and magnetisation data, respectively, in conformity with expectations from the random singlet physics. Our experiments establish the suppression of any freezing scale, if at all present, by more than three orders of magnitude, opening a plethora of interesting possibilities such as disorder-stabilized long range quantum entangled ground states.
