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cond-mat.supr-con2019
Multiorbital singlet pairing and superconductivity
Emilian M. Nica, Qimiao Si
Recent experiments in multiband Fe-based and heavy-fermion superconductors have challenged the long-held dichotomy between simple - and -wave spin-singlet pairing states. Her…
cond-mat.str-el2019
Kondo effect due to a hydrogen impurity in graphene: a multichannel Kondo problem with diverging hybridization
Zheng Shi, Emilian M. Nica, Ian Affleck
We consider the Kondo effect arising from a hydrogen impurity in graphene. As a first approximation, the strong covalent bond to a carbon atom removes that carbon atom without brea…
cond-mat.supr-con2019
Interacting Majorana fermions in strained nodal superconductors
Emilian M. Nica, Onur Erten
Landau levels (LL) have been predicted to emerge in systems with Dirac nodal points under applied non-uniform strain. We consider 2D, singlet (2D-S) and 3D equ…