526 citations · 1.8k across the 20 of their papers we have counts for
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Evolution of superconducting gap anisotropy in hole-doped 122 iron pnictides
Christian Platt, Gang Li, Mario Fink +2
Motivated by recent experimental findings, we investigate the evolution of the superconducting gap anisotropy in 122 iron pnictides as a function of hole doping. Employing both a f…
Spin-orbit coupling and odd-parity superconductivity in the quasi-one-dimensional compound LiMoO
Christian Platt, Weejee Cho, Ross H. McKenzie +2
Previous theoretical studies [W. Cho, C. Platt, R. H. McKenzie, and S. Raghu, Phys. Rev. B 92, 134514 (2015); N. Lera and J. V. Alvarez, Phys. Rev. B 92, 174523 (2015)] have sugges…
Spin-triplet superconductivity in a weak-coupling Hubbard model for the quasi-one-dimensional compound LiMoO
Weejee Cho, Christian Platt, Ross H. McKenzie +1
The purple bronze LiMoO is of interest due to its quasi-one-dimensional electronic structure and the possible Luttinger liquid behavior resulting from it. For su…
Accessing topological superconductivity via a combined STM and renormalization group analysis
Lars Elster, Christian Platt, Ronny Thomale +2
The search for topological superconductors has recently become a key issue in condensed matter physics, because of their possible relevance to provide a platform for Majorana bound…
Chiral -wave Superconductivity in SrPtAs
Mark H. Fischer, Titus Neupert, Christian Platt +5
Recent SR measurements on SrPtAs revealed time-reversal-symmetry breaking with the onset of superconductivity [Biswas et al., Phys. Rev. B 87, 180503(R) (2013)], suggesting an u…
Theory of superconductivity in a three-orbital model of SrRuO
Q. -H. Wang, C. Platt, Y. Yang +5
In conventional and high transition temperature copper oxide and iron pnictide superconductors, the Cooper pairs all have even parity. As a rare exception, SrRuO is the fir…
Anisotropic chiral d+id superconductivity in NaxCoO2 yH2O
Maximilian Kiesel, Christian Platt, Werner Hanke +1
Since its discovery, the superconducting phase in water-intercalated sodium cobaltates NaxCoO2 yH2O (x~0.3, y~1.3) has posed fundamental challenges in terms of experimental investi…
Deviating band symmetries and many-body interactions in a model hole doped iron pnictide superconductor
L. A. Wray, R. Thomale, C. Platt +6
We present a polarization resolved study of the low energy band structure in the optimally doped iron pnictide superconductor BaKFeAs (T=37K) using angl…
Competing many-body instabilities and unconventional superconductivity in graphene
Maximilian Kiesel, Christian Platt, Werner Hanke +2
The band structure of graphene exhibits van Hove singularities (VHS) at doping x=+- 1/8 away from the Dirac point. Near the VHS, interactions effects, enhanced due to the large den…
Mechanism for a Pairing State with Time-Reversal Symmetry Breaking in Iron-Based Superconductors
Christian Platt, Ronny Thomale, Carsten Honerkamp +2
The multipocket Fermi surfaces of iron-based superconductors promote pairing states with both s_{+-}-wave and d_{x^2-y^2}-wave symmetry. We argue that the competition between these…
From density functional theory to the functional renormalization group: superconductivity in the iron pnictide LiFeAs
Christian Platt, Ronny Thomale, Werner Hanke
A combined density functional theory and functional renormalization group method is introduced which takes into account orbital-dependent interaction parameters to derive the effec…
Exotic d-wave superconductivity in strongly hole doped K(x)Ba(1-x)Fe2As2
Ronny Thomale, Christian Platt, Werner Hanke +2
We investigate the superconducting phase in the K(x)Ba(1-x)Fe2As2 122 compounds from moderate to strong hole-doping regimes. Using functional renormalization group, we show that wh…
Order-Parameter Anisotropies in the Pnictides - An Optimization Principle for Multi-Band Superconductivity
Christian Platt, Ronny Thomale, Werner Hanke
Using general arguments of an optimization taking place between the pair wave function and the repulsive part of the electron-electron interaction, we analyze the superconducting g…
Why some Iron-based superconductors are nodal while others are nodeless
Ronny Thomale, Christian Platt, Werner Hanke +1
The symmetry of the order parameter in iron-based superconductors, especially the presence or absence of nodes, is still a question of debate. While contradictory experiments can b…
Doping-dependent pairing symmetry in the Iron-Pnictides
Ronny Thomale, Christian Platt, Jiangping Hu +2
We use the functional renormalization group method to analyze the phase diagram of a 4-band model for the iron-pnictides subject to band interactions with certain A_{1g} momentum d…
Pairing in the iron arsenides: a functional RG treatment
Christian Platt, Carsten Honerkamp, Werner Hanke
We study the phase diagram of a microscopic model for the superconducting iron arsenides by means of a functional renormalization group. Our treatment establishes a connection betw…