15k citations
- Max Planck SocietyDE125 papers
- Centre National de la Recherche ScientifiqueFR46 papers
- Institute of PhysicsPL42 papers
- Leibniz Institute for Solid State and Materials ResearchDE37 papers
- École Polytechnique Fédérale de LausanneCH31 papers
- Institut Laue-LangevinFR22 papers
- Helmholtz-Zentrum Berlin für Materialien und EnergieDE20 papers
- University of British ColumbiaCA20 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR19 papers
- National Academy of Sciences of UkraineUA18 papers
- Paul Scherrer InstituteCH18 papers
- ETH ZurichCH15 papers
23 papers · 2 filters
Spin-Orbital Entanglement Emerging from Frustration in the Kugel-Khomskii Model
W. Brzezicki, A. M. Oleś
We investigate the zero-temperature phase diagrams of the bilayer square-lattice Kugel-Khomskii () model involving entangled and singlet phases using mean-field cluster approa…
Depth profile of the ferromagnetic order in a YBaCuO / LaCaMnO superlattice on a LSAT substrate: a polarized neutron reflectometry study
M. A. Uribe-Laverde, D. K. Satapathy, I. Marozau +10
Using polarized neutron reflectometry (PNR) we have investigated a YBa2Cu3O7(10nm)/La2/3Ca1/3MnO3(9nm)]10 (YBCO/LCMO) superlattice grown by pulsed laser deposition on a La0.3Sr0.7A…
Evidence of a critical hole concentration in underdoped YBaCuO single crystals revealed by Cu NMR
S. -H. Baek, T. Loew, V. Hinkov +4
We report a Cu NMR investigation in detwinned YBaCuO single crystals, focusing on the highly underdoped regime (y=6.35-6.6). Measurements of both the spectra and…
Noncollinear Magnetic Order Stabilized by Entangled Spin-Orbital Fluctuations
Wojciech Brzezicki, Jacek Dziarmaga, Andrzej M. Oleś
Quantum phase transitions in the two-dimensional Kugel-Khomski model on a square lattice are studied using the plaquette mean field theory and the entanglement renormalization ansa…
An alternative functional renormalization group approach to the single impurity Anderson model
Michael Kinza, Jutta Ortloff, Johannes Bauer +1
We present an alternative functional renormalization group (fRG) approach to the single-impurity Anderson model at finite temperatures. Starting with the exact self-energy and inte…
On the Origin of Zigzag Magnetic Order in Iridium Oxide Na2IrO3
Jiří Chaloupka, George Jackeli, Giniyat Khaliullin
We explore the phase diagram of spin-orbit Mott insulators on a honeycomb lattice, within the Kitaev-Heisenberg model extended to its full parameter space. Zigzag-type magnetic ord…