TY - JOUR
T1 - Critical magnetic fields of superconducting Ba6C60
AU - Korenivski, V.
AU - Rao, K. V.
AU - Iqbal, Z.
PY - 1994
Y1 - 1994
N2 - We have measured the upper and lower critical fields of superconducting Ba6C60. Near Tc, from the slope of the measured upper critical field, dHc2/dT=0.45 T/K, we obtain the zero-temperature Ginzburg-Landau coherence length as GL=120. Using the lower critical-field data, the penetration depth at T=0 is estimated to be (0)=1800. Combining (0) with the value of GL, we estimate the Fermi energy EF to be =0.15 eV. Thus, in comparison with the alkali-metal-doped fullerenes, the superconducting parameters Hc2, GL, and the resulting Ginzburg-Landau parameter , are significantly different in the case of the superconducting Ba-doped fullerene.
AB - We have measured the upper and lower critical fields of superconducting Ba6C60. Near Tc, from the slope of the measured upper critical field, dHc2/dT=0.45 T/K, we obtain the zero-temperature Ginzburg-Landau coherence length as GL=120. Using the lower critical-field data, the penetration depth at T=0 is estimated to be (0)=1800. Combining (0) with the value of GL, we estimate the Fermi energy EF to be =0.15 eV. Thus, in comparison with the alkali-metal-doped fullerenes, the superconducting parameters Hc2, GL, and the resulting Ginzburg-Landau parameter , are significantly different in the case of the superconducting Ba-doped fullerene.
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U2 - 10.1103/PhysRevB.50.13890
DO - 10.1103/PhysRevB.50.13890
M3 - Article
AN - SCOPUS:2842598760
SN - 0163-1829
VL - 50
SP - 13890
EP - 13893
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
IS - 18
ER -