Far-infrared reflectivity of Bi2Sr2CaCu2O8+delta single crystals with different oxygen contents

Martin Prenninger; Robert G. Buckley; Philipp Keller; Harry S. Barowski; Anton Prueckl; Matthias Stumpf; Evgeny V. Pechen; Donald M. Pooke; Kohji Kishio; Karl F. Renk

doi:10.1117/12.241796

10 June 1996 Far-infrared reflectivity of Bi₂Sr₂CaCu₂O_8+delta single crystals with different oxygen contents

Martin Prenninger, Robert G. Buckley, Philipp Keller, Harry S. Barowski, Anton Prueckl, Matthias Stumpf, Evgeny V. Pechen, Donald M. Pooke, Kohji Kishio, Karl F. Renk

Author Affiliations +

Proceedings Volume 2696, Spectroscopic Studies of Superconductors; (1996) https://doi.org/10.1117/12.241796
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

Results are reported of an infrared reflectivity study of two high T_c superconducting Bi₂Sr₂CaCu₂O_{8 plus delta} single crystals. One of the samples was optimally- doped (T_c equals 91 K) and the other over-doped (T_c equals 73 K). It is observed that the reflectivity of the optimally-doped crystal is near unity at low temperature (10 K) and at frequencies below 400 cm^-1. The reflectivity of the over-doped crystal is significantly less than unity. The dynamical conductivity and the penetration depth of the optimally-doped crystal are similar to values for optimally-doped YBa₂Cu₃O_{7- delta} single crystal. However, the over-doped crystal displays significantly larger low frequency absorption. The results can be understood within a d-wave picture in which pair breaking increases with increasing hole doping and contributes to a significant quasiparticle density below T_c.

Citation Download Citation

Martin Prenninger, Robert G. Buckley, Philipp Keller, Harry S. Barowski, Anton Prueckl, Matthias Stumpf, Evgeny V. Pechen, Donald M. Pooke, Kohji Kishio, and Karl F. Renk "Far-infrared reflectivity of Bi₂Sr₂CaCu₂O_8+delta single crystals with different oxygen contents", Proc. SPIE 2696, Spectroscopic Studies of Superconductors, (10 June 1996); https://doi.org/10.1117/12.241796

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available