TY - JOUR
T1 - Coexistence of ferromagnetism and Kondo effect in the underscreened Kondo lattice
AU - Perkins, N. B.
AU - Iglesias, J. R.
AU - Nú̃ez-Regueiro, M. D.
AU - Coqblin, B.
PY - 2007/9/1
Y1 - 2007/9/1
N2 - The coexistence of ferromagnetic order and Kondo behavior, that has been experimentally observed in some uranium compounds, is studied in the framework of an underscreened Kondo lattice model within the mean-field approach. For small values of JK compared to the bandwidth, a ferromagnetically ordered solution is obtained, while for larger values of JK a Kondo regime occurs with a Kondo temperature larger than the Curie temperature, suggesting a scenario for the coexistence of Kondo effect and ferromagnetic order.
AB - The coexistence of ferromagnetic order and Kondo behavior, that has been experimentally observed in some uranium compounds, is studied in the framework of an underscreened Kondo lattice model within the mean-field approach. For small values of JK compared to the bandwidth, a ferromagnetically ordered solution is obtained, while for larger values of JK a Kondo regime occurs with a Kondo temperature larger than the Curie temperature, suggesting a scenario for the coexistence of Kondo effect and ferromagnetic order.
UR - http://www.scopus.com/inward/record.url?scp=79051469287&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79051469287&partnerID=8YFLogxK
U2 - 10.1209/0295-5075/79/57006
DO - 10.1209/0295-5075/79/57006
M3 - Article
AN - SCOPUS:79051469287
SN - 0295-5075
VL - 79
JO - EPL
JF - EPL
IS - 5
M1 - 57006
ER -