207 citations · 662 across the 10 of their papers we have counts for
10 papers
Traveling/non-traveling phase transition and non-ergodic properties in the random transverse-field Ising model on the Cayley tree
Ankita Chakrabarti, Cyril Martins, Nicolas Laflorencie +3
We study the random transverse field Ising model on a finite Cayley tree. This enables us to probe key questions arising in other important disordered quantum systems, in particula…
ARPES study of orbital characters, symmetry breakings and pseudogaps in doped and pure Sr2IrO4
Alex Louat, Benjamin Lenz, Silke Biermann +6
Sr2IrO4 is characterized by a large spin-orbit coupling, which gives rise to bands with strongly entangled spin and orbital characters, called J=1/2 and J=3/2. We use light-polariz…
Magnetization density distribution of SrIrO: Deviation from a local picture
Jaehong Jeong, Benjamin Lenz, Arsen Gukasov +10
iridium oxides are of huge interest due to the potential for new quantum states driven by strong spin-orbit coupling. The strontium iridate SrIrO is particularly in th…
Spectral functions of SrIrO: theory versus experiment
Benjamin Lenz, Cyril Martins, Silke Biermann
The spin-orbit Mott insulator SrIrO has attracted a lot of interest in recent years from theory and experiment due to its close connection to isostructural high-tempera…
Non-local Coulomb correlations in pure and electron-doped : spectral functions, Fermi surface and pseudogap-like spectral weight distributions from oriented cluster dynamical mean field theory
Cyril Martins, Benjamin Lenz, Luca Perfetti +3
We address the role of non-local Coulomb correlations and short-range magnetic fluctuations in the high-temperature phase of SrIrO within state-of-the-art spectroscopic and…
Coulomb Correlations in 4d and 5d Oxides from First Principles - or How Spin-Orbit Materials choose their Effective Orbital Degeneracies
Cyril Martins, Markus Aichhorn, Silke Biermann
The interplay of spin-orbit interactions and Coulomb correlations has become a hot topic in condensed matter theory. Here, we review recent advances in dynamical mean-field theory-…
Magnetism, spin texture and in-gap states: Atomic specialization at the surface of oxygen-deficient SrTiO
Michaela Altmeyer, Harald O. Jeschke, Oliver Hijano-Cubelos +7
Motivated by recent spin- and angular-resolved photoemission (SARPES) measurements performed on the two-dimensional electronic states confined near the (001) surface of SrTiO i…
TRIQS/DFTTools: A TRIQS application for ab initio calculations of correlated materials
Markus Aichhorn, Leonid Pourovskii, Priyanka Seth +9
We present the TRIQS/DFTTools package, an application based on the TRIQS library that connects this toolbox to realistic materials calculations based on density functional theory (…
The effects of k-dependent self-energy in the electronic structure of correlated materials
T. Miyake, C. Martins, R. Sakuma +1
It is known from self-energy calculations in the electron gas and sp materials based on the GW approximation that a typical quasiparticle renormalization factor (Z factor) is appro…
Reduced effective spin-orbital degeneracy and spin-orbital ordering in paramagnetic transition metal oxides: Sr2IrO4 vs. Sr2RhO4
Cyril Martins, Markus Aichhorn, Loig Vaugier +1
We discuss the notions of spin-orbital polarization and ordering in paramagnetic materials, and address their consequences in transition metal oxides. Extending the combined densit…