114 citations · 910 across the 28 of their papers we have counts for
5 papers · 1 filter
Supersymmetric approach to heavy fermion systems
Aline Ramires, Piers Coleman
We propose a generalization of the supersymmetric representation of spins with symplectic symmetry, generalizing the rotation group of the spin from SU(2) to SP(N). As a test appli…
Theory of the Electron Spin Resonance in the Heavy Fermion Metal β-YbAlB4
Aline Ramires, Piers Coleman
The heavy fermion metal β-YbAlB4 exhibits a bulk room temperature conduction electron ESR signal which evolves into an Ising-anisotropic f-electron signal exhibiting hyperfine feat…
β-YbAlB4: a critical nodal metal
Aline Ramires, Piers Coleman, Andriy H. Nevidomskyy +1
We propose a model for the intrinsic quantum criticality of β-YbAlB4, in which a vortex in momentum space gives rise to a new type of Fermi surface singularity. The unquenched angu…
Quantum criticality in inter-band superconductors
Aline Ramires, Mucio A. Continentino
In fermionic systems with different types of quasi-particles, attractive interactions can give rise to exotic superconducting states, as pair density wave (PDW) superconductivity a…
Fluctuations in a superconducting quantum critical point of multi-band metals
Aline Ramires, Mucio A. Continentino
In multi-band metals quasi-particles arising from different atomic orbitals coexist at a common Fermi surface. Superconductivity in these materials may appear due to interactions w…