174 citations · 2.7k across the 111 of their papers we have counts for
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cond-mat.str-el2000★ 3 cited
Coqblin-Schrieffer impurity in a singular metal
Yupeng Wang, P. Schlottmann
A Coqblin-Schrieffer impurity of spin coupled to the boundary of an open SU(N)-invariant chain with is studied. The model is integrable as a function of one co…
cond-mat.str-el2000★ 14 cited
Open su(4)-invariant spin ladder with boundary defects
Yupeng Wang, P. Schlottmann
The integrable su(4)-invariant spin-ladder model with boundary defect is studied using the Bethe ansatz method. The exact phase diagram for the ground state is given and the bounda…
cond-mat.str-el2000★ 1 cited
Absence of overscreened Kondo effect in ferromagnetic host
Jianhui Dai, Yupeng Wang
We study the low temperature behavior of a boundary magnetic impurity S'=1/2 in an open ferromagnetic Takhatajian-Babujian spin-S chain. For antiferromagnetic Kondo coupling, it is…