On the phase diagrams of the ferromagnetic superconductors ZrZn2 and UGe2

Abstract

A general phenomenological theory is presented for the phase behavior of ferromagnetic superconductors with spin-triplet electron Cooper pairing. The theory accounts in detail for the temperature-pressure phase diagram of ZrZn${}_2$, while the main features of the diagram for UGe${}_2$ are also described. Quantitative criteria are deduced for the U-type (type I) and Zr-type (type II) unconventional ferromagnetic superconductors with spin-triplet Cooper electron pairing. Some basic properties of quantum phase transitions are also elucidated.

4 pages, 3 figures; typos and minor mistakes has been removed

References in corpus (10)

• Superconductivity on the border of weak itinerant ferromagnetism in UCoGe
• Quantum Phase Transitions in the Itinerant Ferromagnet ZrZn${}_2$
• Unusual upper critical field of the ferromagnetic superconductor UCoGe
• Superconductivity induced by spark erosion in ZrZn2
• Some basic aspects of quantum phase transitions
• Meissner phases in spin-triplet ferromagnetic superconductors
• Coexistence of itinerant ferromagnetism and a non-unitary superconducting state with line nodes: possible application to UGe${}_2$
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Cited by in corpus (3)

• Thermodynamics of ferromagnetic superconductors with spin-triplet electron pairing
• Phenomenological description of anisotropy effects in some ferromagnetic superconductors
• Diamagnetic susceptibility of spin-triplet ferromagnetic superconductors