对“Tl $_{1-x}$ K $_x$ CuCl $_3$中玻色玻璃到三重子凝聚体的转变“一文的评论
Comment on "Transition from Bose glass to a condensate of triplons in Tl$_{1-x}$K$_x$CuCl$_3$"
摘要：
我们认为，无序量子反铁磁体Tl $_{1-x}$ K $_x$ CuCl $_3$的量热数据的解释是由F. Yamada { \it等}在[Phys. Rev. B { \bf 83}，020409（R）（2011）]中的描述是不明确的。一致性分析表明无无序TlCuCl $_3$及其无序衍生物的交叉临界指数没有差异。此外，我们还对Tl $_{1-x}$ K $_x$ CuCl $_3$中存在适当的场致热力学相变提出了质疑。
英文摘要：
We argue that the interpretation of the calorimetric data for disordered quantum antiferromagnets Tl$_{1-x}$K$_x$CuCl$_3$ in terms of Bose Glass physics by F. Yamada {\it et al.} in [Phys. Rev. B {\bf 83}, 020409(R) (2011)] is not unambiguous. A consistent analysis shows no difference in the crossover critical index for the disorder-free TlCuCl$_3$ and its disordered derivatives. Furthermore, we question the very existence of a proper field-induced thermodynamic phase transition in Tl$_{1-x}$K$_x$CuCl$_3$.
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