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Correlation-Driven Spin Reorientation via Competing Anisotropy Channels in CrPS4
Raju Baral, Harald O. Jeschke, Igor I. Mazin +3
We identify a correlation-driven mechanism for the temperature-induced spin reorientation in the quasi-one-dimensional van der Waals antiferromagnet CrPS4. Magnetic pair distributi…
Highly unusual, doubly-strongly-correlated, altermagnetic, 3D analogue of parent compounds of high-Tc cuprates
Harald O. Jeschke, Makoto Shimizu, Igor I. Mazin
Discovery of high-temperature superconductivity (HTSC) in strongly correlated cuprates opened a new chapter in condensed matter physics, breaking existing stereotypes of what is a…
Giant lattice softening at a Lifshitz transition in SrRuO
Hilary M. L. Noad, Kousuke Ishida, You-Sheng Li +11
The interplay of electronic and structural degrees of freedom in solids is a topic of intense research. Experience and intuition suggest that structural changes drive conduction el…
Magnetism and Fermiology of Kagome Magnet YMn6Sn4Ge2
Hari Bhandari, Rebecca L. Dally, Peter E. Siegfried +6
Kagome lattice magnets are an interesting class of materials as they can host topological properties in their magnetic and electronic structures. YMn6Sn6 is one such compound in wh…
Heterogeneous Ta-dichalcogenide bilayer: heavy fermions or doped Mott physics?
Lorenzo Crippa, Hyeonhu Bae, Paul Wunderlich +5
Controlling and understanding electron correlations in quantum matter is one of the most challenging tasks in materials engineering. In the past years a plethora of new puzzling co…
Silvanite AuAgTe: a rare case of gold superconducting material
Yehezkel Amiel, Gyanu P. Kafle, Evgenia V. Komleva +13
Gold is one of the most inert metals, forming very few compounds, some with rather interesting properties, and only two of them currently known to be superconducting under certain…
CrRhAs: a member of a large family of metallic kagome antiferromagnets
Y. N. Huang, Harald O. Jeschke, Igor I. Mazin
Kagome lattice materials are an important platform for highly frustrated magnetism as well as for a plethora of phenomena resulting from flat bands, Dirac cones and van Hove singul…
CoTe2: A quantum critical Dirac metal with strong spin fluctuations
Peter E. Siegfried, Hari Bhandari, Jeanie Qi +13
Quantum critical points separating weak ferromagnetic and paramagnetic phases trigger many novel phenomena. Dynamical spin fluctuations not only suppress the long-range order, but…
Suppressed fluctuations as the origin of the static magnetic order in strained SrRuO
Bongjae Kim, Sergii Khmelevskyi, Cesare Franchini +1
Combining first principle density functional calculations and Moriya's self-consistent renormalization theory, we explain the recently reported counterintuitive appearance of an or…
Unconventional pressure-driven metamagnetic transitions in topological van der Waals magnets
Tiema Qian, Eve Emmanouilidou, Chaowei Hu +3
Activating metamagnetic transitions between ordered states in van der Waals magnets and devices bring great opportunities in spintronics. We show that external pressure, which enha…
Origin of spin reorientation and intrinsic anomalous Hall effect in the kagome ferrimagnet TbMn6Sn6
D. Connor Jones, Suvadip Das, Hari Bhandari +6
TbMnSn has attracted a lot of recent interest for a variety of reasons, most importantly, because of the hypothesis that it may support quantum-limit Chern topological magn…
Electronic and magnetic properties of the RuX (X=Cl, Br, I) family: Two siblings -- and a cousin?
David A. S. Kaib, Kira Riedl, Aleksandar Razpopov +4
Motivated by recent reports of metallic behavior in the recently synthesized RuI, in contrast to the Mott-insulating nature of the actively discussed -RuCl, as well as R…
Phase diagram of a distorted kagome antiferromagnet and application to Y-kapellasite
Max Hering, Francesco Ferrari, Aleksandar Razpopov +4
We investigate the magnetism of a previously unexplored distorted spin-1/2 kagome model consisting of three symmetry-inequivalent nearest-neighbor antiferromagnetic Heisenberg coup…
Magnetic and electronic ordering phenomena in the [RuO] honeycomb lattice compound AgRuO
Walter Schnelle, Beluvalli E. Prasad, Claudia Felser +13
The silver ruthenium oxide AgRuO consists of honeycomb [RuO] layers, and can be considered an analogue of SrRuO with a different intercalation stage.…
Field-tunable toroidal moment in a chiral-lattice magnet
Lei Ding, Xianghan Xu, Harald O. Jeschke +13
A toroidal dipole moment appears independent of the electric and magnetic dipole moment in the multipole expansion of electrodynamics. It arises naturally from vortex-like arrangem…
Chiral properties of the zero-field spiral state and field-induced magnetic phases of the itinerant kagome metal YMnSn
Rebecca L. Dally, Dina Michel, Peter Siegfried +3
Applying a magnetic field in the hexagonal plane of YMnSn leads to a complex magnetic phase diagram of commensurate and incommensurate phases, one of which coexists with th…
Tuning the magnetism and band topology through antisite defects in Sb doped MnBi4Te7
Chaowei Hu, Shang-Wei Lien, Erxi Feng +6
The fine control of magnetism and electronic structure is crucial since the interplay between magnetism and band topology can lead to various novel magnetic topological states incl…
The spontaneous symmetry breaking in TaNiSe is structural in nature
Edoardo Baldini, Alfred Zong, Dongsung Choi +16
The excitonic insulator is an electronically-driven phase of matter that emerges upon the spontaneous formation and Bose condensation of excitons. Detecting this exotic order in ca…
Novel magnetic states and nematic spin chirality in the kagome lattice metal YMnSn
Nirmal J. Ghimire, Rebecca L. Dally, L. Poudel +9
Identification, understanding, and manipulation of novel magnetic textures is essential for the discovery of new quantum materials for future spin-based electronic devices. In part…
Ultrafast dynamics in normal and Charge Density Wave phase of 2H-NbSe2
A. Anikin, R. D. Schaller, G. P. Wiederrecht +3
We investigate carrier and collective mode dynamics in 2H-NbSe using time-resolved optical pump-probe spectroscopy and compare the results with first-principle calculations. Br…
A key role of correlation effects in the Lifshitz transition in SrRuO
Mark E. Barber, Frank Lechermann, Sergey V. Streltsov +8
Uniaxial pressure applied along an Ru-Ru bond direction induces an elliptical distortion of the largest Fermi surface of SrRuO, eventually causing a Fermi surface topologic…
prediction of a two-dimensional variant of the iridate IrO
Andriy Smolyanyuk, Markus Aichhorn, I. I. Mazin +1
We propose an insulating 2D phase of IrO, predicted by evolutionary algorithms. The predicted phase is a van der Waals crystal, in which Ir forms a trian…
Magnetization process of atacamite: a case of weakly coupled sawtooth chains
L. Heinze, H. O. Jeschke, I. I. Mazin +17
We present a combined experimental and theoretical study of the mineral atacamite CuCl(OH). Density functional theory yields a Hamiltonian describing anisotropic sawtooth c…
Normal state O NMR studies of SrRuO under uniaxial stress
Yongkang Luo, A. Pustogow, P. Guzman +11
The effects of uniaxial compressive stress on the normal state O nuclear magnetic resonance properties of the unconventional superconductor SrRuO are reported. T…