Affordable Access

Access to the full text

Ultrafast Phase-Coherence in Normal State of Underdoped Bi2Sr2CaCu2O8 + δ Thin Film

Authors
  • Murakami, H.1
  • Tonouchi, M.1, 2
  • Uchiyama, T.3, 4
  • Iguchi, I.3
  • Wang, Z.5
  • 1 Osaka University, Research Center for Superconductor Photyonics, Osaka, 565-0871, Japan , Osaka
  • 2 CREST-JST, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan , Suita, Osaka
  • 3 Tokyo Institute of Technology, Department of Physics, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan , Meguro-ku, Tokyo
  • 4 CREST-JST, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan , Meguro-ku, Tokyo
  • 5 Kansai Advanced Research Center, Communication Research Laboratory, Kobe, 651-2492, Japan , Kobe
Type
Published Article
Journal
Journal of Superconductivity
Publisher
Kluwer Academic Publishers-Plenum Publishers
Publication Date
Oct 01, 2002
Volume
15
Issue
5
Pages
345–350
Identifiers
DOI: 10.1023/A:1021066012747
Source
Springer Nature
Keywords
License
Yellow

Abstract

A phase-sensitive time-domain terahertz-transmission spectroscopy was carried out on a c-axis oriented underdoped Bi2Sr2CaCu2O8 + δ thin film. We directly extracted the complex refractive index and conductivity at frequencies from 0.3 to 1.5 THz by numerically solving the observed complex transmittance without Kramers–Kronig analysis. The frequency-resolved real and imaginary part of the conductivity (1.0 THz < f) showed a measurable increase below the characteristic temperature of T* ∼ 210 K because of the appearance of partial phase-coherence with an ultrashort lifetime less than about 1 ps.

Report this publication

Statistics

Seen <100 times