d−WaveScaling Relations in the Mixed-State Specific Heat ofYBa2Cu3

Abstract

The low temperature specific heat of a high purity YBa 2 Cu 3 O 7.00 single crystal grown in a BaZrO 3 crucible is measured from 1.2 to 10 K in magnetic fields from 0 to 14 T. The anisotropic component of the excess specific heat due to field,

Gap symmetry of superconducting borocarbide YNi2B2C and skutterudite PrOs4Sb12

“…This √ H dependence of the specific heat has been seen in YBCO [22,23], LSCO [24] and Sr 2 RuO 4 [21]. Further the √ H dependence of χ s and the H linear dependence of T −1 1 have been seen by NMR in a slightly underdoped Bi2212 [25].…”

Impurity scattering effects on the low-temperature specific heat ofd-wave superconductors

“…Very recently, the scaling behavior of the electronic specific heat contribution C e (T,H) has been predicted by theory [13,14], and confirmed by experiments [5,[9][10][11]. However, several papers reported that the non-linear H dependence of g was also observed in conventional superconductors [15,16], and raised the question The analysis of C(T,H) was carried out for data from 0.6 to 7 K. Varying the temperature range to 8 K or to 6 K does not lead to any significant change of the results.…”

“…The T 2 temperature dependence of the electronic term in C at zero magnetic field H=0 and the H 1/2 dependence of the linear term coefficient g have been interpreted as strong evidence of the line nodes of order parameter [3][4][5][6][7][8][9][10][11][12]. Very recently, the scaling behavior of the electronic specific heat contribution C e (T,H) has been predicted by theory [13,14], and confirmed by experiments [5,[9][10][11].…”

Depression of Quasiparticle Density of States at Zero Energy inLa1.9Sr0.1Cu1−Chang1, Lin2, Yang3 2000Phys. Rev. Lett.

“…There are now at least two questions remaining controversial. One is the extended quasiparticle states and quasiparticle transport in the mixed state [1][2][3], which has been intensively studied by the methods like the thermal conductivity [4,5] and specific heat [6][7][8][9]. The other is the quasiparticle density of states in the presence of impurities or disorders.…”