TY - JOUR
T1 - Quasiparticle spectrum and thermodynamics of φ solitons (discommensurations) in the charge-density-wave state
AU - Sasaki, Kazuo
AU - Maki, Kazumi
PY - 1986/1/1
Y1 - 1986/1/1
N2 - The quasiparticle spectrum associated with a soliton (discommensuration) in the quasi-one-dimensional charge-density-wave state is determined theoretically. Making use of the quasiparticle spectrum, we calculate the charge and the entropy associated with a soliton. We find that in the temperature region λ/NT/Δ1, the charge and the entropy of a soliton per chain are given by Q=(2e/N)[1-2βΔK1(βΔ)] and Sφ=(4λ/πN2)(βΔ)3K0 (βΔ), respectively, where Δ is the quasiparticle energy gap, β=1/T, N is the degree of commensurability, λ10-2 is a small parameter, and Kn(z) are modified Bessel functions.
AB - The quasiparticle spectrum associated with a soliton (discommensuration) in the quasi-one-dimensional charge-density-wave state is determined theoretically. Making use of the quasiparticle spectrum, we calculate the charge and the entropy associated with a soliton. We find that in the temperature region λ/NT/Δ1, the charge and the entropy of a soliton per chain are given by Q=(2e/N)[1-2βΔK1(βΔ)] and Sφ=(4λ/πN2)(βΔ)3K0 (βΔ), respectively, where Δ is the quasiparticle energy gap, β=1/T, N is the degree of commensurability, λ10-2 is a small parameter, and Kn(z) are modified Bessel functions.
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U2 - 10.1103/PhysRevB.33.2665
DO - 10.1103/PhysRevB.33.2665
M3 - Article
AN - SCOPUS:35949021007
VL - 33
SP - 2665
EP - 2673
JO - Physical Review B
JF - Physical Review B
SN - 0163-1829
IS - 4
ER -