Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Quasiparticle damping in two-dimensional superconductors with unconventional pairing. / Titov, M. L.; Yashenkin, A. G.; Aristov, D. N.
в: Physical Review B, Том 52, № 14, 01.01.1995, стр. 10626-10632.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Quasiparticle damping in two-dimensional superconductors with unconventional pairing
AU - Titov, M. L.
AU - Yashenkin, A. G.
AU - Aristov, D. N.
PY - 1995/1/1
Y1 - 1995/1/1
N2 - We calculate the damping of excitations due to four-fermionic interaction in the case of two-dimensional superconductors with nodes in the spectrum. At zero temperature and low frequencies it reveals gapless ω3 behavior at the nodal points. With the frequency increasing the crossover to the normal-state regimes appears. At high frequencies the damping strongly depends on details of a normal-state spectrum parametrization. Two important particular cases such as the models of almost free and tight-binding electrons are studied explicitly and the characteristic scales are expressed through the model-free parameters of the spectrum at the nodal points. The possibility of crossover in temperature dependence of damping in the superconducting phase is discussed.
AB - We calculate the damping of excitations due to four-fermionic interaction in the case of two-dimensional superconductors with nodes in the spectrum. At zero temperature and low frequencies it reveals gapless ω3 behavior at the nodal points. With the frequency increasing the crossover to the normal-state regimes appears. At high frequencies the damping strongly depends on details of a normal-state spectrum parametrization. Two important particular cases such as the models of almost free and tight-binding electrons are studied explicitly and the characteristic scales are expressed through the model-free parameters of the spectrum at the nodal points. The possibility of crossover in temperature dependence of damping in the superconducting phase is discussed.
UR - http://www.scopus.com/inward/record.url?scp=0007001825&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.52.10626
DO - 10.1103/PhysRevB.52.10626
M3 - Article
AN - SCOPUS:0007001825
VL - 52
SP - 10626
EP - 10632
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 14
ER -
ID: 36121187