Mw. Xiao et Zz. Li, Weak temperature dependence of angle-resolved photoemission within the periodic Anderson model, SOL ST COMM, 118(5), 2001, pp. 263-267
Within the framework of the periodic Anderson model, we have studied the an
gle-resolved photoemission spectroscopy of heavy-fermion systems by using t
he non-crossing approximation for lattice introduced by Crewe. It is found
that the spectroscopy is weak temperature-dependent as well as dispersive a
t T > 10 T-K, which is in qualitative agreement with the experiments on sin
gle-crystalline samples. (C) 2001 Published by Elsevier Science Ltd.