Comment on "Low-temperature phonon thermal conductivity of single-crystalline Nd_{2}CuO_{4}: Effects of sample size and surface roughness" by Li et al.

Abstract

In this Comment, we show that the experimental data reported by Li {\it et al.} (Phys. Rev. B {\bf 77}, 134501 (2008)) do not support the phonon specular reflection at low temperatures for high-T_c cuprates, because the phonon mean free path \ell calculated from their thermal conductivity data is much smaller than the averaged sample width above \sim 100 mK for both Nd_{2}CuO_{4} and YBa_{2}Cu_{3}O_{6.0} single crystals.

4 pages, 2 figures, accepted for publication in Phys. Rev. B

Cited by in corpus (7)

• Magnetic phase transitions and magnetoelectric coupling of GdFeO_3 single crystals probed by low-temperature heat transport
• Low-temperature heat transport of CuFe${}_{1-x}$Ga${}_x$O${}_2$ ($x=$ 0--0.12) single crystals
• Ising-type quantum spin liquid state in PrMgAl${}_{11}$O${}_{19}$
• Thermal conductivity across the metal-insulator transition in single crystalline hyperkagome Na${}_{3+x}$Ir${}_3$O${}_8$
• Low-temperature heat transport of spin-gapped quantum magnets
• Low-temperature heat transport of Nd_{2-x}Ce_{x}CuO_{4} single crystals
• Large magnetic heat transport in a Haldane chain material Ni(C$_3H_{10}N_2)_2NO_2ClO_4