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The specific heat C and the electronic and phononic thermal conductivitieskappa_e and kappa_{ph} are calculated in the mixed state for magnetic fields Hnear H_{c2}. The effects of supercurrent flow and Andreev scattering of theAbrikosov vortex lattice on the quasiparticles are taken into account. Theresulting function C(H) is nearly linear while kappa_e(H) exhibits an upwardcurvature near H_{c2}. The slopes decrease with impurity scattering whichimproves the agreement with the data on MgB_2. The ratio of phonon relaxationtimes tau_n/tau_s = g(omega_0,H) for phonon energy omega_0, which is nearly astep function at omega_0 = 2Delta for the BCS state, is smeared out and tendsto one for increasing H. This leads to a rapid reduction of kappa_{ph}(H) inMgB_2 for relatively small fields due to the rapid suppression of the smallerenergy gap.Comment: 8 pages, 4 figures, accepted for publication in Phys. Rev. Letter

physical review letters

Specific Heat and Thermal Conductivity in the Mixed State of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">M</mml:mi><mml:mi mathvariant="normal">g</mml:mi><mml:msub><mml:mi mathvariant="normal">B</mml:mi><mml:mn mathvariant="normal">2</mml:mn></mml:msub></mml:math>

Specific Heat and Thermal Conductivity in the Mixed State ofMgB2