54 citations · 479 across the 28 of their papers we have counts for
11 papers · 1 filter
High-accuracy evaluation of non-thermal magnetic states beyond spin-wave theory: applications to higher-energy states
Wesley Roberts, Michael Vogl, Roderich Moessner +1
We present an approximation scheme based on selective Hilbert space truncation for characterizing non-thermal states of magnetic systems beyond spin-wave theory. We study applicati…
Fidelity of the Kitaev honeycomb model under a quench
Wesley Roberts, Michael Vogl, Gregory A. Fiete
Motivated by rapid developments in the field of quantum computing and the increasingly diverse nature of qubits, we theoretically study the influence that quenched outside disturba…
Light driven magnetic transitions in transition metal dichalcogenide heterobilayers
Michael Vogl, Swati Chaudhary, Gregory A. Fiete
Motivated by the recent excitement around the physics of twisted transition metal dichalcogenide (TMD) multilayer systems, we study strongly correlated phases of TMD heterobilayers…
Fractional Spin fluctuations and quantum liquid signature in Gd2ZnIrO6
Birender Singh, Deepu Kumar, Vivek Kumar +5
Hitherto, the discrete identification of quantum spin liquid phase, holy grail of condensed matter physics, remains a challenging task experimentally. However, the precursor of qua…
The Future of the Correlated Electron Problem
A. Alexandradinata, N. P. Armitage, Andrey Baydin +44
A central problem in modern condensed matter physics is the understanding of materials with strong electron correlations. Despite extensive work, the essential physics of many of t…
Coupling of lattice, spin and intra-configurational excitations of Eu3+ in Eu2ZnIrO6
Birender Singh, M. Vogl, S. Wurmehl +3
In Eu2ZnIrO6, effectively two atoms are active i.e. Ir is magnetically active, which results in complex magnetic ordering within the Ir sublattice at low temperature. On the other…
Exact resummation of the Holstein-Primakoff expansion and differential equation approach to operator square-roots
Michael Vogl, Pontus Laurell, Hao Zhang +2
Operator square-roots are ubiquitous in theoretical physics. They appear, for example, in the Holstein-Primakoff representation of spin operators and in the Klein-Gordon equation.…
Kramer doublets, phonons, crystal-field excitations and their coupling in Nd2ZnIrO6
Birender Singh, M. Vogl, S. Wurmehl +3
We report comprehensive Raman-scattering measurements on a single crystal of double-perovskite Nd2ZnIrO6 in temperature range of 4-330 K, and spanning a broad spectral range from 2…
Complex magnetic properties in the mixed 4f -5d double perovskite iridates Ln2ZnIrO6 (Ln = Nd, Sm, Eu & Gd)
M. Vogl, R. Morrow, A. A. Aczel +5
In this work, we report on the synthesis and magnetic properties of a series of double perovskites LnZnIrO with Ln = Nd, Sm, Eu & Gd. These compounds present new examples o…
Disordered magnetism in the double perovskite LaCaScIrO6 with a distorted fcc lattice of Ir4+
M. Vogl, G. Bastien, R. Sarkar +9
The synthesis and characterization of the previously unknown material LaCaScIrO is reported. LaCaScIrO presents a new example of the rare case of a double perovskite with t…
Kitaev Magnetism and Fractionalized Excitations in Double Perovskite Sm2ZnIrO6
Birender Singh, M. Vogl, S. Wurmehl +3
The quest for Kitaev spin liquids in particular three dimensional solids is long sought goal in condensed matter physics, as these states may give rise to exotic new types of quasi…