7 papers
Interface states at the boundary between ABC and ABA multilayer graphene structures
Maxence Grandadam, Sarah Pinon, Cristina Bena +1
We study the interfaces between ABC and ABA regions in multilayer graphene, in particular we consider regions in which the transition between the ABA and ABC structure arises due t…
Pole structure of the electronic self-energy with coexistence of Charge order and Superconductivity
Maxence Grandadam, Catherine Pépin
We compare the pole structure of the electronic Green's function obtained by Cluster Dynamical Mean Field Theory to the results from the fractionalized Pair Density Wave idea. In t…
Anomalous softening of phonon-dispersion in cuprate superconductors
Saheli Sarkar, Maxence Grandadam, Catherine Pépin
A softening of phonon-dispersion has been observed experimentally in under-doped cuprate superconductors at the charge-density wave (CDW) ordering wave vector. Interestingly, the s…
Electronic spectral function in fractionalized Pair Density Wave scenario
Maxence Grandadam, Debmalya Chakraborty, Xavier Montiel +1
Studies of the electronic spectral function in cuprates by Angle-Resolved Photo-Emission Spectroscopy reveal unusual features in the pseudogap phase that persist in the superconduc…
Fractionalizing a local pair density wave: a good "recipe" for opening a pseudo-gap
Maxence Grandadam, Debmalya Chakraborty, Catherine Pépin
We give a concise version of a recently proposed concept of fractionalization of an order parameter, thus generating a constraint through a fictitious gauge field. We argue that th…
Fluctuations and Higgs mechanism in Under-Doped Cuprates: a Review
C. Pépin, D. Chakraborty, M. Grandadam +1
The physics of the pseudo-gap phase of high temperature cuprate superconductors has been an enduring mystery in the past thirty years. The ubiquitous presence of the pseudo-gap pha…