Tunneling spectrum indicating phonon contribution to high tc oxide superconductivity

R. Aoki; H. Murakami; M. Shirai; V. M. Svistunov; A. L. Dyachenko; D. N. Afanassyev

doi:10.1007/BF02562784

Tunneling spectrum indicating phonon contribution to high t_c oxide superconductivity

R. Aoki, H. Murakami, M. Shirai, V. M. Svistunov, A. L. Dyachenko, D. N. Afanassyev

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Abstract

Improved tunneling spectroscopy with [BSCCO(2212)/SiO₂]/Au, tip point contact junction enables us to observe significant, peaks in the tunneling conductance derivative spectrum d²t/d²V - V. Their peak energy eV_i could be systematically a.ssigoed by eV_i-Δ = nε₀ + hw_i (ph) with n=0,1,2, Here, hw_i means each phonon mode energy and ε₀ = 72me V was found just corresponding to the breathing mode of the Cu-O bond stretching in the Cue2 plane, which iudicates that these characteristic optical phonons play an essential role in the high T_c superconductivity. The infrared reflectance spectrum by Capizzi et al. on similar substance is found in peak correspondence.

Original language	English
Pages (from-to)	1339-1340
Number of pages	2
Journal	Czechoslovak Journal of Physics
Volume	46
Issue number	SUPPL. 3
DOIs	https://doi.org/10.1007/BF02562784
Publication status	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Tunneling spectrum indicating phonon contribution to high tc oxide superconductivity",

abstract = "Improved tunneling spectroscopy with [BSCCO(2212)/SiO2]/Au, tip point contact junction enables us to observe significant, peaks in the tunneling conductance derivative spectrum d2t/d2V - V. Their peak energy eVi could be systematically a.ssigoed by eVi-Δ = nε0 + hwi (ph) with n=0,1,2, Here, hwi means each phonon mode energy and ε0 = 72me V was found just corresponding to the breathing mode of the Cu-O bond stretching in the Cue2 plane, which iudicates that these characteristic optical phonons play an essential role in the high Tc superconductivity. The infrared reflectance spectrum by Capizzi et al. on similar substance is found in peak correspondence.",

author = "R. Aoki and H. Murakami and M. Shirai and Svistunov, {V. M.} and Dyachenko, {A. L.} and Afanassyev, {D. N.}",

year = "1996",

doi = "10.1007/BF02562784",

language = "English",

volume = "46",

pages = "1339--1340",

journal = "Czechoslovak Journal of Physics",

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TY - JOUR

T1 - Tunneling spectrum indicating phonon contribution to high tc oxide superconductivity

AU - Aoki, R.

AU - Murakami, H.

AU - Shirai, M.

AU - Svistunov, V. M.

AU - Dyachenko, A. L.

AU - Afanassyev, D. N.

PY - 1996

Y1 - 1996

N2 - Improved tunneling spectroscopy with [BSCCO(2212)/SiO2]/Au, tip point contact junction enables us to observe significant, peaks in the tunneling conductance derivative spectrum d2t/d2V - V. Their peak energy eVi could be systematically a.ssigoed by eVi-Δ = nε0 + hwi (ph) with n=0,1,2, Here, hwi means each phonon mode energy and ε0 = 72me V was found just corresponding to the breathing mode of the Cu-O bond stretching in the Cue2 plane, which iudicates that these characteristic optical phonons play an essential role in the high Tc superconductivity. The infrared reflectance spectrum by Capizzi et al. on similar substance is found in peak correspondence.

AB - Improved tunneling spectroscopy with [BSCCO(2212)/SiO2]/Au, tip point contact junction enables us to observe significant, peaks in the tunneling conductance derivative spectrum d2t/d2V - V. Their peak energy eVi could be systematically a.ssigoed by eVi-Δ = nε0 + hwi (ph) with n=0,1,2, Here, hwi means each phonon mode energy and ε0 = 72me V was found just corresponding to the breathing mode of the Cu-O bond stretching in the Cue2 plane, which iudicates that these characteristic optical phonons play an essential role in the high Tc superconductivity. The infrared reflectance spectrum by Capizzi et al. on similar substance is found in peak correspondence.

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JF - Czechoslovak Journal of Physics

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ER -

Tunneling spectrum indicating phonon contribution to high t_c oxide superconductivity

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