159 research outputs found
Phases and phase transitions in spin-triplet ferromagnetic superconductors
Recent results for the coexistence of ferromagnetism and unconventional
superconductivity with spin-triplet Cooper pairing are reviewed on the basis of
the quasi-phenomenological Ginzburg-Landau theory. New results are reported.
The results are discussed in view of applications to metallic compounds as
UGe2, URhGe, ZrZn2.Comment: 32 pages, 5 figs, Miktex; Chapter in ``Progress in Ferromagnetism
Research'' (NOVA, N. Y., 2004
Diamagnetic susceptibility of spin-triplet ferromagnetic superconductors
We calculate the diamagnetic susceptibility in zero external magnetic field
above the phase transition from ferromagnetic phase to phase of coexistence of
ferromagnetic order and unconventional superconductivity. For this aim we use
generalized Ginzburg-Landau free energy of unconventional ferromagnetic
superconductor with spin-triplet electron pairing. A possible application of
the result to some intermetallic compounds is briefly discussed.Comment: 7 pages, 1 figur
New critical behavior in unconventional ferromagnetic superconductors
New critical behavior in unconventional superconductors and superfluids is
established and described by the Wilson-Fisher renormalization-group method.
For certain ordering symmetries a new type of fluctuation-driven first order
phase transitions at finite and zero temperature are predicted. The results can
be applied to a wide class of ferromagnetic superconducting and superfluid
systems, in particular, to itinerant ferromagnets as UGe2 and URhGe.Comment: 12 pages, 6 fig
Phase transitions to spin-triplet ferromagnetic superconductivity in neutron stars
Effects of the anisotropy of Cooper pairs in spin-triplet ferromagnetic
superconductors are investigated on the basis of the Ginzburg-Landau theory. A
special attention is paid to the triggering of the superconducting state by the
ferromagnetic order. The ground states of these superconductors are outlined
and discussed. The idea about a possible coexistence of ferromagnetism and
spin-triplet superconductivity in neutron stars is introduced.Comment: 10 pages Latex2e, 2 figs, Proc. of the Leiden Workshop on Realistic
Models in Astrophysical Matter (AIP, N.Y., 2004
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