{
    "contributor-id" "5ca58a6a-aa46-4e5a-a2e1-b3fc6bc2efa6" 
    "description" "This is a model of modified Morse potential for copper (Cu).  phi(r)=(D_0)/(2B-1) * [ e^(-2A*sqrt(B)(r-r_0)) - 2B e^(-A(r-r_0)/sqrt(B)) ].\nThe modification was introduced to improve agreement with experimental values for thermal expansion of face-centered cubic (fcc) crystals. This is accomplished by adjusting phi'', because it is largely responsible for the slope of thermal expansion as a function of temperature. D_0 and A are identical to the standard Morse potential when r=r_0. B is determined by the requirement that the thermal expansion should fit the experimental results near Debye temperature. The standard Morse potential is recovered for B = 1. The cutoff is set to a large value -- 1000 angstrom." 
    "developer" [
        "cd0d65a7-4710-412e-845e-069aa37f49ae" 
        "b7b7001d-220b-4f0c-96dc-5c0429833399"
    ] 
    "domain" "openkim.org" 
    "extended-id" "Pair_Morse_Modified_MacDonaldMacDonald_Cu__MO_034823476734_000" 
    "kim-api-version" "1.6" 
    "maintainer-id" "5ca58a6a-aa46-4e5a-a2e1-b3fc6bc2efa6" 
    "potential-type" "morse" 
    "publication-year" "2015" 
    "source-citations" [
        {
            "author" "MacDonald, Rosemary A. and MacDonald, William M." 
            "doi" "10.1103/PhysRevB.24.1715" 
            "issue" "4" 
            "journal" "Physical Review B" 
            "month" "Aug" 
            "pages" "1715--1724" 
            "publisher" "American Physical Society" 
            "recordkey" "MO_034823476734_000a" 
            "recordprimary" "recordprimary" 
            "recordtype" "article" 
            "title" "Thermodynamic properties of fcc metals at high temperatures" 
            "volume" "24" 
            "year" "1981"
        }
    ] 
    "species" [
        "Cu"
    ] 
    "title" "Modified Morse pair potential for copper due to MacDonald and MacDonald"
}