Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-3754
Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Pseudogap and superconducting gap in YBa2Cu3o6+x : a raman study
Authors: Opel, M.
Götzinger, M.
Hoffmann, C.
Nemetschek, R.
Philipp, R.
Venturini, Francesca
Hackl, R.
Erb, A.
Walker, E.
DOI: 10.21256/zhaw-3754
10.1023/A:1022513531861
Published in: Journal of Low Temperature Physics
Volume(Issue): 117
Issue: 3-4
Page(s): 347
Pages to: 351
Issue Date: 1999
Publisher / Ed. Institution: Kluwer
ISSN: 0022-2291
1573-7357
Language: English
Subjects: Raman spectrum; Magnetic material; Relaxation rate; Energy scale; Doping level
Subject (DDC): 530: Physics
Abstract: We present results of electronic Raman-scattering experiments in differently doped YBa 2 Cu 3 O 6+x . In B 2g symmetry, an analysis of the data in terms of a memory function approach is presented and dynamical relaxation rates Γ (ω, T) and mass-enhancement factors 1 + λ(ω, T) for the carriers are obtained. Starting from temperatures T > 180K, Γ(ω, T) and 1 + λ(ω,T) are extrapolated to lower temperatures and used to re-calculate Raman spectra. By comparison with our data, we find a loss of spectral weight between T c < T < T* at all doping levels x. T* is comparable to the pseudogap temperature found in other experiments. Below T c , the superconducting gap is observed. It depends on x and scales with T c whereas the energy scale of the pseudogap remains the same.
Further description: Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzench.)
URI: https://digitalcollection.zhaw.ch/handle/11475/7045
Fulltext version: Published version
License (according to publishing contract): Licence according to publishing contract
Departement: School of Engineering
Organisational Unit: Institute of Applied Mathematics and Physics (IAMP)
Appears in collections:Publikationen School of Engineering

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Opel, M., Götzinger, M., Hoffmann, C., Nemetschek, R., Philipp, R., Venturini, F., Hackl, R., Erb, A., & Walker, E. (1999). Pseudogap and superconducting gap in YBa2Cu3o6+x : a raman study. Journal of Low Temperature Physics, 117(3-4), 347–351. https://doi.org/10.21256/zhaw-3754
Opel, M. et al. (1999) ‘Pseudogap and superconducting gap in YBa2Cu3o6+x : a raman study’, Journal of Low Temperature Physics, 117(3-4), pp. 347–351. Available at: https://doi.org/10.21256/zhaw-3754.
M. Opel et al., “Pseudogap and superconducting gap in YBa2Cu3o6+x : a raman study,” Journal of Low Temperature Physics, vol. 117, no. 3-4, pp. 347–351, 1999, doi: 10.21256/zhaw-3754.
OPEL, M., M. GÖTZINGER, C. HOFFMANN, R. NEMETSCHEK, R. PHILIPP, Francesca VENTURINI, R. HACKL, A. ERB und E. WALKER, 1999. Pseudogap and superconducting gap in YBa2Cu3o6+x : a raman study. Journal of Low Temperature Physics. 1999. Bd. 117, Nr. 3-4, S. 347–351. DOI 10.21256/zhaw-3754
Opel, M., M. Götzinger, C. Hoffmann, R. Nemetschek, R. Philipp, Francesca Venturini, R. Hackl, A. Erb, and E. Walker. 1999. “Pseudogap and Superconducting Gap in YBa2Cu3o6+X : A Raman Study.” Journal of Low Temperature Physics 117 (3-4): 347–51. https://doi.org/10.21256/zhaw-3754.
Opel, M., et al. “Pseudogap and Superconducting Gap in YBa2Cu3o6+X : A Raman Study.” Journal of Low Temperature Physics, vol. 117, no. 3-4, 1999, pp. 347–51, https://doi.org/10.21256/zhaw-3754.


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