Questionable collapse of the bulk modulus in CrN

In this comment we show that the main conclusion in a previous article, claiminga drastic increase in compressibility of CrN at the cubic to orthorhombic phasetransition, is unsupported by first-principles calculations. We show that if thecubic CrN phase is considered as a disordered magnetic materi...

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Bibliographic Details
Published inNature materials Vol. 9; no. 4; pp. 283 - 284
Main Authors Alling, Björn, Marten, Tobias, Abrikosov, Igor A
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 01.04.2010
Nature Publishing Group
Subjects
639/301/1034/1038
639/301/119/997
Biomaterials
Bulk modulus
Chemistry and Materials Science
Chromium nitride
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Condensed Matter Physics
correspondence
CrN
first-principles
Fysik
Kondenserade materiens fysik
magnetism
Materials Science
Nanotechnology
NATURAL SCIENCES
NATURVETENSKAP
Optical and Electronic Materials
phase-transition
Physics
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Summary:In this comment we show that the main conclusion in a previous article, claiminga drastic increase in compressibility of CrN at the cubic to orthorhombic phasetransition, is unsupported by first-principles calculations. We show that if thecubic CrN phase is considered as a disordered magnetic material, as supported bydifferent experimental data, rather then non-magnetic, the bulk modulus is almostunaffected by the transition.
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ISSN:1476-1122
1476-4660
1476-4660
DOI:10.1038/nmat2722