On the magnetism of the normal state in MgB2

S. Reich*, G. Leitus, I. Felner

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The experimentally observed ferromagnetism in MgB2 in the normal state is attributed to microphase-separated inclusions of iron. This magnetic character is also observed when the iron content of the samples is reduced below 20 μg/g, however in these samples the diamagnetism of MgB2 is apparent and is measured. It is found experimentally that the diamagnetic susceptibility at room temperature of B element, MgB2, and MgB 4 is close to the ratio 1:2:4, suggesting that the diamagnetism in these borides is confined to the boron atoms. This observation supports a picture in which the two electrons of Mg are donated to B in MgB2.

Original languageEnglish
Pages (from-to)109-111
Number of pages3
JournalJournal of Superconductivity and Novel Magnetism
Volume15
Issue number2
StatePublished - 2002

Keywords

  • Iron impurity
  • Magnesium diboride
  • Normal state

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