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Title: High-pressure EXAFS Debye-Waller factors of metals
Authors: Nguyen, Viet Tuyen
Tran, Thi Hai
Nguyen, Thi Hong
Phan, Thi Thanh Hong
Ho, Khac Hieu
Keywords: EXAFS;Debye-Waller factors;Debye model;Anharmonicity;Pressure
Issue Date: 2017
Publisher: H. : ĐHQGHN
Series/Report no.: Vol. 33;No. 1 (2017)
Abstract: The anharmonic correlated Debye model has been developed to investigate the pressure effects on the extended X-ray absorption fine structure (EXAFS) Debye-Waller factors of metals. The recent well-established Grüneisen parameter expressions have been applied to formulate the pressure-dependent analytical expressions of the effective spring constant, correlated Debye frequency and temperature. Combing with the anharmonic correlated Debye model, the expression of EXAFS Debye–Waller factor under pressure can be derived. Numerical calculations, performed for Fe and Cu metals show reasonable agreement with experiments.
Description: p. 76-80
ISSN: 2588-1124
Appears in Collections:Mathematics and Physics

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