Shock-loading effects on superconductivity of HgBa2CuOy

Ayako Yamamoto, S. Adachi, M. Kikuchi, A. Fukuoka, K. Tanabe, Y. Syono

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have investigated shock-loading effects on the structural and superconducting properties of a high-Tc superconducting oxide HgBa2CuOy (Hg-1201) by X-ray powder diffraction analysis, magnetic measurements and electron microscopy. Most of the shock experiments were performed using samples with pre-cooling to liquid nitrogen temperature in order to prevent decomposition due to temperature rise. The width of magnetization hysteresis (ΔM) of Hg-1201 was reduced by shock-loading, but it recovered and improved by subsequent appropriate annealing. The magnetization hysteresis loops and TEM observation indicate that this improvement of ΔM is probably caused by defects as pinning centers which were introduced by shock-loading and preserved by the annealing. The present study demonstrates that the pre-cooled shock-loading method is effective for introducing pinning centers into high-Tc superconductors, even for the composition including a volatile element such as Hg.

Original languageEnglish
Pages (from-to)90-96
Number of pages7
JournalPhysica C: Superconductivity and its Applications
Volume291
Issue number1-2
Publication statusPublished - 1997 Nov 15
Externally publishedYes

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Superconductivity
Magnetization
superconductivity
shock
Annealing
Magnetic variables measurement
Liquid nitrogen
Hysteresis loops
X ray powder diffraction
Oxides
Electron microscopy
Superconducting materials
Hysteresis
Transmission electron microscopy
Cooling
Decomposition
Temperature
Defects
hysteresis
Chemical analysis

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Yamamoto, A., Adachi, S., Kikuchi, M., Fukuoka, A., Tanabe, K., & Syono, Y. (1997). Shock-loading effects on superconductivity of HgBa2CuOy . Physica C: Superconductivity and its Applications, 291(1-2), 90-96.

Shock-loading effects on superconductivity of HgBa2CuOy . / Yamamoto, Ayako; Adachi, S.; Kikuchi, M.; Fukuoka, A.; Tanabe, K.; Syono, Y.

In: Physica C: Superconductivity and its Applications, Vol. 291, No. 1-2, 15.11.1997, p. 90-96.

Research output: Contribution to journalArticle

Yamamoto, A, Adachi, S, Kikuchi, M, Fukuoka, A, Tanabe, K & Syono, Y 1997, 'Shock-loading effects on superconductivity of HgBa2CuOy ', Physica C: Superconductivity and its Applications, vol. 291, no. 1-2, pp. 90-96.
Yamamoto A, Adachi S, Kikuchi M, Fukuoka A, Tanabe K, Syono Y. Shock-loading effects on superconductivity of HgBa2CuOy . Physica C: Superconductivity and its Applications. 1997 Nov 15;291(1-2):90-96.
Yamamoto, Ayako ; Adachi, S. ; Kikuchi, M. ; Fukuoka, A. ; Tanabe, K. ; Syono, Y. / Shock-loading effects on superconductivity of HgBa2CuOy . In: Physica C: Superconductivity and its Applications. 1997 ; Vol. 291, No. 1-2. pp. 90-96.
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AU - Syono, Y.

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