Ferromagnetism and Kondo insulator behavior in the disordered periodic Anderson model
U Yu, K Byczuk, D Vollhardt - Physical review letters, 2008 - APS
U Yu, K Byczuk, D Vollhardt
Physical review letters, 2008•APSThe effect of binary alloy disorder on the ferromagnetic phases of f-electron materials is
studied within the periodic Anderson model. We find that disorder in the conduction band
can drastically enhance the Curie temperature T c due to an increase of the local f moment.
The effect may be explained qualitatively and even quantitatively by a simple theoretical
ansatz. The emergence of an alloy Kondo insulator at noninteger filling is also pointed out.
studied within the periodic Anderson model. We find that disorder in the conduction band
can drastically enhance the Curie temperature T c due to an increase of the local f moment.
The effect may be explained qualitatively and even quantitatively by a simple theoretical
ansatz. The emergence of an alloy Kondo insulator at noninteger filling is also pointed out.
The effect of binary alloy disorder on the ferromagnetic phases of -electron materials is studied within the periodic Anderson model. We find that disorder in the conduction band can drastically enhance the Curie temperature due to an increase of the local moment. The effect may be explained qualitatively and even quantitatively by a simple theoretical ansatz. The emergence of an alloy Kondo insulator at noninteger filling is also pointed out.
American Physical Society