Using a phenomenological model, we discuss the consequences of spinon-holon
binding in the U(1) slave-boson approach to t-J model in the weak-coupling
limit. We find that spinon-holon binding produces a pseudogap normal
state with a segmented Fermi surface and the superconducting state
is formed by opening an “additional” d-wave gap on the segmented
Fermi surface. The d-wave gap merges with the pseudogap smoothly
as temperature T→0. The quasiparticles in the superconducting state
are coupled to external electromagnetic field with a coupling constant
of order xγ∕2 (x=hole concentration), where 0⩽γ⩽1.
%0 Journal Article
%1 Ng2005
%A Ng, Tai-Kai
%D 2005
%I American Physical Society
%J Phys. Rev. B
%K imported
%N 17
%P 172509
%R 10.1103/PhysRevB.71.172509
%T Spinon-holon binding in $ t-J $ model
%V 71
%X Using a phenomenological model, we discuss the consequences of spinon-holon
binding in the U(1) slave-boson approach to t-J model in the weak-coupling
limit. We find that spinon-holon binding produces a pseudogap normal
state with a segmented Fermi surface and the superconducting state
is formed by opening an “additional” d-wave gap on the segmented
Fermi surface. The d-wave gap merges with the pseudogap smoothly
as temperature T→0. The quasiparticles in the superconducting state
are coupled to external electromagnetic field with a coupling constant
of order xγ∕2 (x=hole concentration), where 0⩽γ⩽1.
@article{Ng2005,
abstract = {Using a phenomenological model, we discuss the consequences of spinon-holon
binding in the U(1) slave-boson approach to t-J model in the weak-coupling
limit. We find that spinon-holon binding produces a pseudogap normal
state with a segmented Fermi surface and the superconducting state
is formed by opening an “additional” d-wave gap on the segmented
Fermi surface. The d-wave gap merges with the pseudogap smoothly
as temperature T→0. The quasiparticles in the superconducting state
are coupled to external electromagnetic field with a coupling constant
of order xγ∕2 (x=hole concentration), where 0⩽γ⩽1.},
added-at = {2010-11-06T00:14:39.000+0100},
author = {Ng, Tai-Kai},
biburl = {https://www.bibsonomy.org/bibtex/2fe6e2ca4ff6369ff5e7bb9674da18235/nplumb},
doi = {10.1103/PhysRevB.71.172509},
file = {:C\:\\Users\\Nick\\Documents\\Papers\\Ng - Spinon-holon binding in t-J model.pdf:PDF},
interhash = {8533c05b5af69ca02ada3195cbef0371},
intrahash = {fe6e2ca4ff6369ff5e7bb9674da18235},
journal = {Phys. Rev. B},
keywords = {imported},
month = May,
number = 17,
numpages = {4},
owner = {Nick},
pages = 172509,
publisher = {American Physical Society},
timestamp = {2010-11-06T00:14:43.000+0100},
title = {Spinon-holon binding in $ t-J $ model},
volume = 71,
year = 2005
}