Infrared studies of high Tc superconductors

D. B. TANNER; G. L. CARR; FENG CAO; S. L. HERR; K. KAMARAS; J. S. KIM; C. D. PORTER; D. B. ROMERO; G. R. STEWART; N. TACHE; S. ETEMAD; T. VENKATESAN; B. DUTTA; A. INAM; X. D. WU; M. REEDYK; D. A. BONN; J. D. GARRETT; J. E. GREEDAN; T. TIMUSK

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 1990),
paper JTUD1

Infrared studies of high T_c superconductors

D. B. TANNER, G. L. CARR, FENG CAO, S. L. HERR, K. KAMARAS, J. S. KIM, C. D. PORTER, D. B. ROMERO, G. R. STEWART, N. TACHE, S. ETEMAD, T. VENKATESAN, B. DUTTA, A. INAM, X. D. WU, M. REEDYK, D. A. BONN, J. D. GARRETT, J. E. GREEDAN, and T. TIMUSK

Conference on Lasers and Electro-Optics 1990

Baltimore, Maryland United States
21–25 May 1990
ISBN: 1-55752-131-X

From the session
Joint Symposium on Ultrafast Optoeletronics: 3-High Tc Superconductors; Semiconductors (JTUD)

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
D. B. TANNER, G. L. CARR, F. CAO, S. L. HERR, K. KAMARAS, J. S. KIM, C. D. PORTER, D. B. ROMERO, G. R. STEWART, N. TACHE, S. ETEMAD, T. VENKATESAN, B. DUTTA, A. INAM, X. D. WU, M. REEDYK, D. A. BONN, J. D. GARRETT, J. E. GREEDAN, and T. TIMUSK, "Infrared studies of high Tc superconductors," in Conference on Lasers and Electro-Optics, T. Giallorenzi, S. Guch, Jr., A. Johnson, and R. Lind, eds., Vol. 7 of OSA Technical Digest (Optica Publishing Group, 1990), paper JTUD1.

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Save article

Abstract

Two open questions about the IR properties of high-T_c superconductors are the superconducting energy gap and the nature of the strong mid-IR absorption We discuss the IR reflectance of epitaxially grown laser deposited films of YBa₂Cu₃O_7–4 and of single crystals of Bi:Sr₂CaCu₂O₈ Below Tr_c both show Kero abvorption^1-3 at low fre- quencies (120-140 cm⁻¹ for YBa₂Cu₃O_7–4 and 250-300 cm⁻¹ for bisco). At higher frequencies (420-470 cm⁻¹ for VBa₂Cu₃O_7-4 and 470-520 cm⁻¹ for bisco), there is a characteristic knee in the reflectance^1,3-5 and a corresponding minimum in σ₁(ω).

PDF Article

More Like This

Infrared look at the high Tc superconductors

D. B. Tanner, Feng Cao, S. L. Herr, C. D. Porter, K. Kamaras, S. Etemad, T. Venkatesan, E. Chase, A. Inam, X. O. Woo, M. S. Hedge, B. Datta, D. A. Bonn, M. Reedy, J. D. Garrett, J. E. Greedan, C. V. Stager, and T. Timusk
WS2 OSA Annual Meeting (FIO) 1989

Femtosecond Thermomodulation Study of Conventional and High-Tc Superconductors

S. D. Brorson, A. Kazeroonian, J. S. Moodera, D. W. Face, T. K. Cheng, E. P. Ippen, M. S. Dresselhaus, G. Dresselhaus, G. L. Doll, T. Venkatesan, X. D. Wu, and A. Inam
WF3 International Conference on Ultrafast Phenomena (UP) 1990

Femtosecond Absorption Studies of Nonequilibrium Electronic Processes in High-Tc Superconductors

J. Chwalek, C. Uher, S. Gupta, J. Whitaker, J. Agostinelli, and M. Lelental
WF2 International Conference on Ultrafast Phenomena (UP) 1990

Previous Article Next Article