Consortium of Swiss Academic Libraries

Phenomenological theory of the s-wave state in superconductors without an inversion center

Frigeri, P. A. ; Agterberg, D. F. ; Milat, I. ; Sigrist, M.

In: The European Physical Journal B - Condensed Matter and Complex Systems, 2006, vol. 54, no. 4, p. 435-448

Consortium of Swiss Academic Libraries

Slave-boson mean-field theory of the Mott transition in the two-band Hubbard model

Rüegg, A. ; Indergand, M. ; Pilgram, S. ; Sigrist, M.

In: The European Physical Journal B - Condensed Matter and Complex Systems, 2005, vol. 48, no. 1, p. 55-64

Université de Fribourg

Magnetic domain formation in itinerant metamagnets

Binz, Benedikt ; Braun, H. B. ; Rice, T. M. ; Sigrist, M.

In: Physical Review Letters, 2006, vol. 96, p. 196406

We examine the effects of long-range dipolar forces on metamagnetic transitions and generalize the theory of Condon domains to the case of an itinerant electron system undergoing a first-order metamagnetic transition. We demonstrate that, within a finite range of the applied field, dipolar interactions induce a spatial modulation of the magnetization in the form of stripes or bubbles. Our...