THE EFFECT OF DIRECT f-f HOPPING ON THE HYBRIDIZATION GAP INSULATING BEHAVIOR OF THE PERIODIC ANDERSON LATTICE
HU LIANG-BIN (胡梁宾)a, YANG FU-MIN (杨富民)a, SUN JIN-ZUO (孙金祚)a, LIN ZONG-HAN (林宗涵)b
a Department of Physics, Yantai University, Yantai 264005, China; b Chinese Center of Advanced Science and Technology (CCAST) (World Laboratory), Beijing 100080, China and Department of Physics, Peking University, Beijing 100871, China
Abstract By using the well known slave-boson technique and within the framework of mean field approximation, we study the effect of the direct f-f hopping on the low-temperature hybridization gap insulating behavior of the periodic Anderson lattice. The results show that the direct f-f hopping will decrease the hybridization gap or lead it to vanish. In the latter case, the lattice will exhibit no hybridization gap insulating behavior even if the lower renormalized band is fully occupied.
Received: 30 January 1996
Revised: 17 May 1996
Accepted manuscript online:
PACS:
75.30.Mb
(Valence fluctuation, Kondo lattice, and heavy-fermion phenomena)
HU LIANG-BIN (胡梁宾), YANG FU-MIN (杨富民), SUN JIN-ZUO (孙金祚), LIN ZONG-HAN (林宗涵) THE EFFECT OF DIRECT f-f HOPPING ON THE HYBRIDIZATION GAP INSULATING BEHAVIOR OF THE PERIODIC ANDERSON LATTICE 1996 Acta Physica Sinica (Overseas Edition) 5 849
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
