Bose Glass-BEC Transition of Magnons in Tl${}_{1-x}$K${}_x$CuCl${}_3$

Fumiko Yamada, Hidekazu Tanaka, Toshio Ono +1

We report the magnetic-field induced Bose glass$-$BEC transition of magnons in Tl${}_{1-x}$K${}_x$CuCl${}_3$ and its critical behavior investigated through specific heat and ESR measurem…