Theory of "ferrisuperconductivity" in $U_{1-x}T{h}_{x}B{e}_{13}$

Abstract

We construct a two component Ginzburg-Landau theory with coherent pair motion and incoherent quasiparticles for the phase diagram of $U_{1-x}T{h}_{x}B{e}_{13}$. The two staggered superconducting states live at the Brillouin zone center and the zone boundary, and coexist for temperatures $T\le T_{c2}$ at concentrations $x_{c1}\approx 0.02\le x\le x_{c2}\approx 0.04$. We predict below $T_{c2}$ appearance of a charge density wave (CDW) and Be-sublattice distortion. The distortion explains the $\mu$SR relaxation anomaly, and Th-impurity mediated scattering of ultrasound to CDW fluctuations explains the attenuation peak.

4 pages, 4 eps figures, REVTeX

References in corpus (4)

• Electronic Liquid Crystal Phases of a Doped Mott Insulator
• The Order Parameter for the Superconducting Phases of UPt${}_3$
• Superconductivity, Josephson coupling and order parameter symmetry in striped cuprates
• Staggered Pairing Phenomenology for UPd_2Al_3 and UNi_2Al_3

Cited by in corpus (4)

• Superconducting phases of f-electron compounds
• Odd-frequency superconducting states with different types of Meissner response: Problem of coexistence
• Superconductivity of Composite Particles in Two-Channel Kondo Lattice
• Tc for non s-wave pairing superconductors correlated with coherence length and effective mass