TY - JOUR
T1 - Ferromagnetic superconductivity driven by changing Fermi surface topology
AU - Sandeman, KG
AU - Lonzarich, GG
AU - Schofield, Andrew
PY - 2003/4/1
Y1 - 2003/4/1
N2 - We introduce a simple but powerful zero temperature Stoner model to explain the unusual phase dia-gram of the ferromagnetic superconductor, UGe2. Triplet superconductivity is driven in the ferromagnetic phase by tuning the majority spin Fermi level through one of two peaks in the paramagnetic density of states (DOS). Each peak is associated with a metamagnetic jump in magnetization. The twin-peak DOS may be derived from a tight-binding, quasi-one-dimensional band structure, inspired by previous band-structure calculations.
AB - We introduce a simple but powerful zero temperature Stoner model to explain the unusual phase dia-gram of the ferromagnetic superconductor, UGe2. Triplet superconductivity is driven in the ferromagnetic phase by tuning the majority spin Fermi level through one of two peaks in the paramagnetic density of states (DOS). Each peak is associated with a metamagnetic jump in magnetization. The twin-peak DOS may be derived from a tight-binding, quasi-one-dimensional band structure, inspired by previous band-structure calculations.
UR - http://www.scopus.com/inward/record.url?scp=0038047527&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.90.167005
DO - 10.1103/PhysRevLett.90.167005
M3 - Article
C2 - 12731997
SN - 1079-7114
VL - 90
SP - 167005
JO - Physical Review Letters
JF - Physical Review Letters
IS - 16
ER -