X. Chen et al., TEMPERATURE-DEPENDENT X-RAY-DIFFRACTION STUDY OF LATTICE VIBRATIONAL BEHAVIOR IN BI-SYSTEM SUPERCONDUCTOR, Solid state communications, 96(12), 1995, pp. 957-959
Temperature dependent X-ray diffraction is carried out in order to stu
dy lattice vibrational behavior in Bi1.6Pb0.4Sr2Ca2Cu3-xFexOy (x=0 and
0.08 respectively). The study focuses attention on the (002) diffract
ion peak. The lattice parameters and the anomalous behavior of the int
ensity of the (002) peak show the existence of a lattice softening eff
ect at approximately 130 and 200 K. The samples with different values
of T-c show different vibrational behavior.