Theory for phonon-induced superconductivity in MgB2

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Theory for phonon-induced superconductivity in MgB2. / Joas, C.; Eremin, Ilya; Manske, D.; Bennemann, K. H.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 65, No. 13, 132518, 01.04.2002, p. 1325181-1325184.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Joas, C, Eremin, I, Manske, D & Bennemann, KH 2002, 'Theory for phonon-induced superconductivity in MgB2', Physical Review B - Condensed Matter and Materials Physics, vol. 65, no. 13, 132518, pp. 1325181-1325184.

APA

Joas, C., Eremin, I., Manske, D., & Bennemann, K. H. (2002). Theory for phonon-induced superconductivity in MgB2. Physical Review B - Condensed Matter and Materials Physics, 65(13), 1325181-1325184. [132518].

Vancouver

Joas C, Eremin I, Manske D, Bennemann KH. Theory for phonon-induced superconductivity in MgB2. Physical Review B - Condensed Matter and Materials Physics. 2002 Apr 1;65(13):1325181-1325184. 132518.

Author

Joas, C. ; Eremin, Ilya ; Manske, D. ; Bennemann, K. H. / Theory for phonon-induced superconductivity in MgB2. In: Physical Review B - Condensed Matter and Materials Physics. 2002 ; Vol. 65, No. 13. pp. 1325181-1325184.

Bibtex

@article{91a4c068960e4151a065c2264611d64e,
title = "Theory for phonon-induced superconductivity in MgB2",
abstract = "We analyze superconductivity in MgB2 observed below Tc = 39 K resulting from electron-phonon coupling involving a mode at ℏω1 = 24 meV and, most importantly, the in-plane B-B E2g vibration at ℏω2 = 67 meV. The quasiparticles originating from π and σ states couple strongly to the low-frequency mode and the E2g vibrations, respectively. Using two-band Eliashberg theory, λπ = 1.4 and λσ = 0.7, we calculate the gap functions Δi(ω,O) (i = π, σ). Our results provide an explanation of recent tunneling experiments. We get Hc2ab/Hc2c ≈ 3.9.",
author = "C. Joas and Ilya Eremin and D. Manske and Bennemann, {K. H.}",
year = "2002",
month = apr,
day = "1",
language = "English",
volume = "65",
pages = "1325181--1325184",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "13",

}

RIS

TY - JOUR

T1 - Theory for phonon-induced superconductivity in MgB2

AU - Joas, C.

AU - Eremin, Ilya

AU - Manske, D.

AU - Bennemann, K. H.

PY - 2002/4/1

Y1 - 2002/4/1

N2 - We analyze superconductivity in MgB2 observed below Tc = 39 K resulting from electron-phonon coupling involving a mode at ℏω1 = 24 meV and, most importantly, the in-plane B-B E2g vibration at ℏω2 = 67 meV. The quasiparticles originating from π and σ states couple strongly to the low-frequency mode and the E2g vibrations, respectively. Using two-band Eliashberg theory, λπ = 1.4 and λσ = 0.7, we calculate the gap functions Δi(ω,O) (i = π, σ). Our results provide an explanation of recent tunneling experiments. We get Hc2ab/Hc2c ≈ 3.9.

AB - We analyze superconductivity in MgB2 observed below Tc = 39 K resulting from electron-phonon coupling involving a mode at ℏω1 = 24 meV and, most importantly, the in-plane B-B E2g vibration at ℏω2 = 67 meV. The quasiparticles originating from π and σ states couple strongly to the low-frequency mode and the E2g vibrations, respectively. Using two-band Eliashberg theory, λπ = 1.4 and λσ = 0.7, we calculate the gap functions Δi(ω,O) (i = π, σ). Our results provide an explanation of recent tunneling experiments. We get Hc2ab/Hc2c ≈ 3.9.

UR - http://www.scopus.com/inward/record.url?scp=0036538014&partnerID=8YFLogxK

M3 - Journal article

AN - SCOPUS:0036538014

VL - 65

SP - 1325181

EP - 1325184

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 13

M1 - 132518

ER -

ID: 226827831