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Pressure‐induced electrical resistivity saturation of Fe17Si
Author(s) -
Kiarasi Soushyant,
Secco Richard A.
Publication year - 2015
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201552029
Subject(s) - electrical resistivity and conductivity , saturation (graph theory) , condensed matter physics , scattering , impurity , materials science , debye model , curie temperature , temperature coefficient , chemistry , physics , optics , composite material , ferromagnetism , mathematics , organic chemistry , combinatorics , quantum mechanics
A large body of work has focused on resistivity saturation in systems where scattering is caused by impurities or by thermal effects. Electrical resistivity saturation is here classified as either static, where impurity scattering causes saturation, or dynamic, where changing external parameters such as temperature or pressure cause saturation. Resistivity measurements up to 5 GPa show pressure‐induced resistivity saturation in Fe17wt%Si by the change in sign from positive to negative of the temperature coefficient of resistivity. The pressure dependence of the Curie temperature is 10.2(8) K GPa −1 . The Debye temperature is calculated from the Bloch–Grüneisen equation and yields a pressure dependence of 40(9) K GPa −1 .