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dc.contributor.authorFeng, Huifang
dc.contributor.authorWu, Xiaozhi
dc.contributor.authorGan, Liyong
dc.contributor.authorWang, Rui
dc.contributor.authorWei, Qunyi
dc.date.accessioned2015-08-03T11:35:44Z
dc.date.available2015-08-03T11:35:44Z
dc.date.issued2013-11-23
dc.identifier.issn15571939
dc.identifier.doi10.1007/s10948-013-2441-8
dc.identifier.urihttp://hdl.handle.net/10754/563099
dc.description.abstractThe second-order elastic constants (SOECs) and third-order elastic constants (TOECs) of MgCNi3 and CdCNi3 are presented by using first-principles methods combined with homogeneous deformation theory. The Voigt-Reuss-Hill (VRH) approximation are used to calculate the bulk modulus B, shear modulus G, averaged Young's modulus E and Poisson's ratio ν for polycrystals and these effective modulus are consistent with the experiments. The SOECs under different pressure of MgCNi3 and CdCNi3 are also obtained based on the TOECs. Furthermore, the Zener anisotropy factor, Chung-Buessem anisotropy index, and the universal anisotropy index are used to describe the anisotropy of MgCNi3 and CdCNi3. The anisotropy of Young's modulus of single-crystal under different pressure is also presented. © 2013 Springer Science+Business Media New York.
dc.description.sponsorshipThe work is supported by the Natural Science Foundation of China (11104361) and Project No. CQDXWL2012015 supported by the Fundamental Research Funds for the Central Universities
dc.publisherSpringer Science + Business Media
dc.subjectElastic anisotropy
dc.subjectElastic constants
dc.subjectPressure
dc.titleThe elastic constants and anisotropy of superconducting MgCNi3 and CdCNi3 under different pressure
dc.typeArticle
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalJournal of Superconductivity and Novel Magnetism
dc.contributor.institutionCollege of Physics, Institute for Structure and Function, Chongqing University, 401331 Chongqing, China
dc.contributor.institutionCollege of Materials Science and Engineering, Chongqing University, 400044 Chongqing, China
kaust.personGan, Liyong


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