Investigation of the Tunneling Spectra in HgBr₂-Intercalated Bi-2212 Single Crystals Below and Above T_c

Author

Cihan Kurter, Missouri University of Science and TechnologyFollow
Daniel V. Mazur
Lutfi Ozyuzer
David G. Hinks
Kenneth E. Gray, Missouri University of Science and TechnologyFollow

Abstract

Interlayer tunneling spectroscopy measurements were performed on mesa arrays of Bi-2212 single crystals, intercalated with HgBr₂. Tunneling conductances were obtained over a wide temperature range to examine the spectral features, especially the behavior of the quasiparticle peaks corresponding to superconducting energy gaps (SGs). Experimental spectra showed that gap-like features are still present even for the temperatures far above the transition temperature, T_c. This evidence is consistent with the idea that the SG evolves into a pseudogap above T_c for HgBr₂-intercalated Bi-2212 single crystals.

Recommended Citation

C. Kurter et al., "Investigation of the Tunneling Spectra in HgBr₂-Intercalated Bi-2212 Single Crystals Below and Above T_c," Physica C: Superconductivity and its Applications, vol. 460-462 II, no. SPEC. ISS., pp. 1090 - 1091, Elsevier, Sep 2007.

The definitive version is available at https://doi.org/10.1016/j.physc.2007.03.222

Department(s)

Physics

Second Department

Geosciences and Geological and Petroleum Engineering

Keywords and Phrases

Bismuth compounds; Intercalation; Josephson junction devices; Measurement theory; Mercury compounds; Single crystals; Spectroscopic analysis; Intrinsic Josephson junctions; Pseudogaps; Tunneling spectroscopy; Scanning tunneling microscopy

International Standard Serial Number (ISSN)

0921-4534

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2007 Elsevier, All rights reserved.

Publication Date

01 Sep 2007