Phonon anomalies in layered superconductors with unconventional pairing

Standard

Phonon anomalies in layered superconductors with unconventional pairing. / Yashenkin, A. G.; Aristov, D. N.; Maleyev, S. V.

In: Physica C: Superconductivity and its Applications, Vol. 261, No. 1-2, 20.04.1996, p. 137-146.

Research output: Contribution to journal › Article › peer-review

Author

Yashenkin, A. G. ; Aristov, D. N. ; Maleyev, S. V. / Phonon anomalies in layered superconductors with unconventional pairing. In: Physica C: Superconductivity and its Applications. 1996 ; Vol. 261, No. 1-2. pp. 137-146.

BibTeX

@article{a6c6a5434fee418dbe2111b1a2d1da2f,

title = "Phonon anomalies in layered superconductors with unconventional pairing",

abstract = "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.",

author = "Yashenkin, {A. G.} and Aristov, {D. N.} and Maleyev, {S. V.}",

year = "1996",

month = apr,

day = "20",

doi = "10.1016/0921-4534(96)00156-6",

language = "English",

volume = "261",

pages = "137--146",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "1-2",

}

RIS

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