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Phase stability of Cr n+ 1 GaC n MAX phases from first principles and Cr 2 GaC thin‐film synthesis using magnetron sputtering from elemental targets
Author(s) -
Petruhins Andrejs,
Ingason Arni Sigurdur,
Dahlqvist Martin,
Mockute Aurelija,
Junaid Muhammad,
Birch Jens,
Lu Jun,
Hultman Lars,
Persson Per O. Å.,
Rosen Johanna
Publication year - 2013
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201308025
Subject(s) - sputter deposition , antiferromagnetism , thin film , ab initio , phase (matter) , analytical chemistry (journal) , transmission electron microscopy , cavity magnetron , epitaxy , ab initio quantum chemistry methods , crystallography , ground state , materials science , chemistry , sputtering , nanotechnology , condensed matter physics , physics , atomic physics , molecule , organic chemistry , chromatography , layer (electronics)
Ab‐initio calculations have been used to investigate the phase stability and magnetic state of Cr n+ 1 GaC n MAX phase. Cr 2 GaC ( n = 1) was predicted to be stable, with a ground state corresponding to an antiferromagnetic spin configuration. Thin‐film synthesis by magnetron sputtering from elemental targets, including liquid Ga, shows the formation of Cr 2 GaC, previously only attained from bulk synthesis methods. The films were deposited at 650 °C on MgO(111) substrates. X‐ray diffraction and high‐resolution transmission electron microscopy show epitaxial growth of (000ℓ) MAX phase. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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