Origin of the Giant Negative Thermal Expansion in Mn3(Cu0.5Ge0.5)N
Joint Authors
Source
Advances in Condensed Matter Physics
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-10-16
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The giant negative thermal expansion in the Ge-doped antiperovskite Mn3CuN compound is theoretically studied by using the first principles calculations.
We propose that such a negative thermal expansion property is essentially attributed to the magnetic phase transition, rather than to the lattice vibration of the Ge-doped compound.
Furthermore, we found that the doped Ge atoms in the compound significantly enhance the antiferromagnetic couplings between the nearest neighboring Mn ions, which effectively stabilizes the magnetic ground states.
In addition, the nature of the temperature-dependent changes in the volume of the Ge-doped compound was revealed.
American Psychological Association (APA)
Qu, B. Y.& He, H. Y.& Pan, B. C.. 2012. Origin of the Giant Negative Thermal Expansion in Mn3(Cu0.5Ge0.5)N. Advances in Condensed Matter Physics،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-507570
Modern Language Association (MLA)
Qu, B. Y.…[et al.]. Origin of the Giant Negative Thermal Expansion in Mn3(Cu0.5Ge0.5)N. Advances in Condensed Matter Physics No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-507570
American Medical Association (AMA)
Qu, B. Y.& He, H. Y.& Pan, B. C.. Origin of the Giant Negative Thermal Expansion in Mn3(Cu0.5Ge0.5)N. Advances in Condensed Matter Physics. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-507570
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-507570