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Physical Review B
We performed first-principle calculations on the exchange interaction (EI) between atoms in BCC-Fe strained volumetrically. Our results show that the volume-dependence of the EI deviates considerably from the Bethe-Slater curve. This behavior is discussed in terms of the on-site and/or inter-site direct exchange interactions between electrons.doi:10.1103/physrevb.82.144304 fatcat:mlza5domsnfpbbhq5dteejwg74