Preparation and picosecond optical response of Bi system high-Tc superconductors

Yukihiro Tominari, Toshihiko Kiwa, Hironaru Murakami, Masayoshi Tonouchi, Takeshi Arai, Takafumi Aomine

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Bi2Sr2Ca1-xYxCu2 O8+δ single crystals were grown by traveling solvent floating zone method. The crystallinity and the superconducting property of the single crystals were characterized by X-ray diffraction and in-plane resistivity measurements. To investigate the ultrafast optical response, time-resolved pump-probe reflectivity measurements were carried out on the single crystals. As a result, fairly long relaxation times of about 20 and 6 ps of excited carriers were estimated for the crystals with x=0 and 0.2, respectively, as compared to 1.7 ps for YBa2Cu3O7-δ thin films in previous study. The relaxation time observed on the underdoped crystal with x=0.2 showed a good consistency with that of Bi2Sr2CaCu2O8+δ thin film in underdoped regime.

Original languageEnglish
Pages (from-to)332-336
Number of pages5
JournalPhysica C: Superconductivity and its applications
Volume367
Issue number1-4
DOIs
Publication statusPublished - Feb 15 2002

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Superconducting materials
Single crystals
Relaxation time
preparation
single crystals
relaxation time
Thin films
Crystals
thin films
floating
crystals
crystallinity
Pumps
pumps
reflectance
X ray diffraction
electrical resistivity
probes
diffraction
x rays

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Preparation and picosecond optical response of Bi system high-Tc superconductors. / Tominari, Yukihiro; Kiwa, Toshihiko; Murakami, Hironaru; Tonouchi, Masayoshi; Arai, Takeshi; Aomine, Takafumi.

In: Physica C: Superconductivity and its applications, Vol. 367, No. 1-4, 15.02.2002, p. 332-336.

Research output: Contribution to journalArticle

Tominari, Yukihiro ; Kiwa, Toshihiko ; Murakami, Hironaru ; Tonouchi, Masayoshi ; Arai, Takeshi ; Aomine, Takafumi. / Preparation and picosecond optical response of Bi system high-Tc superconductors. In: Physica C: Superconductivity and its applications. 2002 ; Vol. 367, No. 1-4. pp. 332-336.
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AU - Arai, Takeshi

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