Dislocations in MgB2

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

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


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
Issue number8
StatePublished - Aug 2003

ASJC Scopus subject areas

  • Condensed Matter Physics


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