The orthorhombic-tetragonal phase transformation in LnBa2Cu3O7-δ (Ln=Y, La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb) was studied using careful isobar TG measurements under an oxygen partial pressure of 1 atm. As the atomic number within the lanthanide series increases, the transformation temperature tends to increase as well. This tendency is strongly related to the spacing of the nearest-neighbor oxygen atoms and is successfully interpreted in terms of the repulsion energy between them on the basis of a simple order-disorder transformation model proposed in our previous paper.
No takes yet. Share an insight, caveat, or question.
Nakabayashi et al. (1988) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: