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cond-mat.str-el2007
The Friedel-Anderson and Kondo Impurity Problem for Arbitrary s-Band Density of States and Exchange Interaction
Gerd Bergmann
In his renormalization paper of the Kondo effect Wilson replaced the full band of s-electrons by a small number of ''Wilson states''. He started from a rather artificial symmetric…
cond-mat.mes-hall2007
Spacial Modulation of the Magnetization in Cobalt Nanowires
Gerd Bergmann, Yaqi Tao, Jia G. Lu +1
Cobalt nanowires with a diameter in the range between 50 to 100nm can be prepared as single-crystal wires with the easy axis (the c-axis) perpendicular to the wire axis. The compet…