Dislocations in MgB2

N. Jiang, B. Jiang, John Spence, S. Lee, S. Tajima

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2 Scopus citations

Abstract

The types of dislocation most commonly occurring in the superconductor MgB2 are investigated. Dislocations belonging to both the basal and the non-basal types have been observed. At 2 nm spatial resolution, dissociation of the basal dislocations into Shockley partials is not observed. The dislocation shapes are irregular, but many segments of dislocation are fairly straight. The core structure of the non-basal dislocations, with b=[0001] has also been observed by high-resolution electron microscopy. A step-like structure is suggested for this sessile dislocation.

Original languageEnglish (US)
Pages (from-to)495-501
Number of pages7
JournalPhilosophical Magazine Letters
Volume83
Issue number8
DOIs
StatePublished - Aug 1 2003

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ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Jiang, N., Jiang, B., Spence, J., Lee, S., & Tajima, S. (2003). Dislocations in MgB2. Philosophical Magazine Letters, 83(8), 495-501. https://doi.org/10.1080/0950083031000137848