Restoring the density-gradient expansion for exchange in solids and surfaces

被引:9194
作者
Perdew, John P. [1 ,2 ]
Ruzsinszky, Adrienn [1 ,2 ]
Csonka, Gabor I. [3 ]
Vydrov, Oleg A. [4 ]
Scuseria, Gustavo E. [4 ]
Constantin, Lucian A. [5 ]
Zhou, Xiaolan [1 ,2 ]
Burke, Kieron [6 ,7 ]
机构
[1] Tulane Univ, Dept Phys, New Orleans, LA 70118 USA
[2] Tulane Univ, Quantum Theory Grp, New Orleans, LA 70118 USA
[3] Univ Budapest Technol & Econom, Dept Chem, H-1521 Budapest, Hungary
[4] Rice Univ, Dept Chem, Houston, TX 77005 USA
[5] Donostia Int Phys Ctr, E-20018 Donostia San Sebastian, Basque Country, Spain
[6] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA
[7] Univ Calif Irvine, Dept Phys, Irvine, CA 92697 USA
基金
美国国家科学基金会;
关键词
D O I
10.1103/PhysRevLett.100.136406
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Popular modern generalized gradient approximations are biased toward the description of free-atom energies. Restoration of the first-principles gradient expansion for exchange over a wide range of density gradients eliminates this bias. We introduce a revised Perdew-Burke-Ernzerhof generalized gradient approximation that improves equilibrium properties of densely packed solids and their surfaces.
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页数:4
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