Bonding nature in MgB2

Eiji Nishibori, Masaki Takata, Makoto Sakata, Hiroshi Tanaka, Takahiro Muranaka, Jim Akimitsu

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)


The accurate charge density of MgB2 was observed at room temperature (R.T.) and 15 K by the maximum entropy method (MEM)/Rietveld analysis using synchrotron radiation powder data. The obtained charge density clearly revealed the covalent bonding feature of boron forming the 2D honeycomb network in the basal plane, on the other hand, Mg is found to be in divalent state. A subtle but clear charge concentration was found on boron 2D sheets at 15 K, which should be related to superconductivity.

Original languageEnglish
Pages (from-to)2252-2254
Number of pages3
Journaljournal of the physical society of japan
Issue number8
Publication statusPublished - Aug 2001
Externally publishedYes


  • Bonding nature
  • Charge density
  • Maximum entropy method
  • Mgb
  • Superconductivity
  • Synchrotron radiation

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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