Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Phonon anomalies in layered superconductors with unconventional pairing. / Yashenkin, A. G.; Aristov, D. N.; Maleyev, S. V.
в: Physica C: Superconductivity and its Applications, Том 261, № 1-2, 20.04.1996, стр. 137-146.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Phonon anomalies in layered superconductors with unconventional pairing
AU - Yashenkin, A. G.
AU - Aristov, D. N.
AU - Maleyev, S. V.
PY - 1996/4/20
Y1 - 1996/4/20
N2 - We calculate the electron contribution to the phonon damping in layered superconductor with nodes in the spectrum. In the long-wavelength limit this damping is gapless and quadratically depends on the momentum. Only the phonons propagating along some particular directions are damped. Being connected with the symmetry of the order parameter, the angular dependence of damping may be used for its identification, which is illustrated by examples. The phonon Kohn anomaly in the superconducting state of La2-xSrxCuO4 is also discussed. We attribute its "fine structure" previously observed for the magnetic structure factor by Won and Maki to the presence of low-energy crossover scale.
AB - We calculate the electron contribution to the phonon damping in layered superconductor with nodes in the spectrum. In the long-wavelength limit this damping is gapless and quadratically depends on the momentum. Only the phonons propagating along some particular directions are damped. Being connected with the symmetry of the order parameter, the angular dependence of damping may be used for its identification, which is illustrated by examples. The phonon Kohn anomaly in the superconducting state of La2-xSrxCuO4 is also discussed. We attribute its "fine structure" previously observed for the magnetic structure factor by Won and Maki to the presence of low-energy crossover scale.
UR - http://www.scopus.com/inward/record.url?scp=0030121761&partnerID=8YFLogxK
U2 - 10.1016/0921-4534(96)00156-6
DO - 10.1016/0921-4534(96)00156-6
M3 - Article
AN - SCOPUS:0030121761
VL - 261
SP - 137
EP - 146
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1-2
ER -
ID: 36121071