Correlation Between The Extraordinary Hall Constant And Electrical Resistivity Minima In Co-Rich Metallic Glasses
PHYSICAL REVIEW B(2004)
Abstract
The Hall effect has been studied in some Co-rich ferromagnetic metallic glasses which show resistivity (rho) minima at low temperatures. It is found that the extraordinary Hall constant (R-s) shows a corresponding minimum. The scaling relation R(s)similar torho(n) holds with nsimilar or equal to2 showing the dominance of quantum transport in these high-resistive disordered systems. The temperature dependences of magnetization and electrical resistivity are also interpreted in terms of existing theories.
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Key words
magnetic materials,thermal conductivity,hall effect,liquid metal,electrical resistance,metallic glass,spin wave
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