183 citations · 1k across the 28 of their papers we have counts for
28 papers
Efficient spin-pumping and spin transport across epitaxial MnSn(0001) noncollinear antiferromagnet/permalloy interfaces
Surya N. Panda, Ning Mao, Nikolai Peshcherenko +5
The generation and control of spin currents are crucial for advancing next-generation spintronic technologies. These technologies depend on materials capable of efficiently sourcin…
How to Measure and Model Light-Induced Spin Transfer
Sinéad A. Ryan, Mohamed F. Elhanoty, Anya Grafov +13
Femtosecond laser light can transfer spin angular momentum between magnetic subspecies that exhibit hybridized valence bands within an alloy or compound, and represents the fastest…
Unidirectional motion of topological defects mediating continuous rotation processes
Marisel Di Pietro Martínez, Luke Alexander Turnbull, Jeffrey Neethirajan +9
Topological defects play a critical role across many fields, mediating phase transitions and macroscopic behaviors as they move through space. Their role as robust information carr…
Spin-to-charge conversion in orthorhombic RhSi topological semimetal crystalline thin films
Surya N. Panda, Qun Yang, Darius Pohl +10
The rise of non-magnetic topological semimetals, which provide a promising platform for observing and controlling various spin-orbit effects, has led to significant advancements in…
Superconducting Penetration Depth Through a Van Hove Singularity: SrRuO Under Uniaxial Stress
Eli Mueller, Yusuke Iguchi, Fabian Jerzembeck +12
In the unconventional superconductor SrRuO, uniaxial stress along the direction tunes the Fermi level through a Van Hove singularity (VHS) in the density of states,…
Giant spin-charge conversion in ultrathin films of the MnPtSb half-Heusler compound
E. Longo, A. Markou, C. Felser +6
Half-metallic half-Heusler compounds with strong spin-orbit-coupling and broken inversion symmetry in their crystal structure are promising materials for generating and absorbing s…
Optically controlling the competition between spin flips and intersite spin transfer in a Heusler half-metal on sub-100 fs timescales
Sinéad A. Ryan, Peter C. Johnsen, Mohamed F. Elhanoty +10
The direct manipulation of spins via light may provide a path toward ultrafast energy-efficient devices. However, distinguishing the microscopic processes that can occur during ult…
Helicity-dependent Ultrafast Photocurrents in Weyl Magnet MnSn
Dominik Hamara, Gunnar F. Lange, Farhan Nur Kholid +4
We present an optical pump-THz emission study on non-collinear antiferromagnet MnSn. We show that MnSn acts as a source of THz radiation when irradiated by femtosecond lase…
Molecular Beam Epitaxy of a Half-Heusler Topological Superconductor Candidate YPtBi
Jiwoong Kim, Kajetan M. Fijalkowski, Johannes Kleinlein +6
The search for topological superconductivity has motivated investigations into materials that combine topological and superconducting properties. The half-Heusler compound YPtBi ap…
Spintronic THz emitters based on transition metals and semi-metals/Pt multilayers
J. Hawecker, E. Rongione, A. Markou +11
Spintronic terahertz (THz) emitters (STE) based on the inverse spin Hall effect in ferromagnetic/heavy metal (FM/HM) heterostructures have become important sources for THz pulse ge…
Giant intrinsic anomalous terahertz Faraday rotation in the magnetic Weyl semimetal CoMnGa at room temperature
Xingyue Han, Anastasios Markou, Jonathan Stensberg +3
We report measurement of terahertz anomalous Hall conductivity and Faraday rotation in the magnetic Weyl semimetal CoMnGa thin films as a function of the magnetic field, temper…
Spin-voltage-driven efficient terahertz spin currents from the magnetic Weyl semimetals CoMnGa and CoMnAl
Genaro Bierhance, Anastasios Markou, Oliver Gueckstock +7
Magnetic Weyl semimetals are an emerging material class that combines magnetic order and a topologically non-trivial band structure. Here, we study ultrafast optically driven spin…
Anisotropic magneto-thermal transport in CoMnGa thin films
Philipp Ritzinger, Helena Reichlova, Dominik Kriegner +9
Ferromagnetic CoMnGa has recently attracted significant attention due to effects related to non-trivial topology of its band structure, however a systematic study of canonical…
Hard Magnetic Topological Semimetals in XPt3: Harmony of Berry Curvature
Anastasios Markou, Jacob Gayles, Elena Derunova +6
Topological magnetic semimetals, like Co3Sn2S2 and Co2MnGa, are known to display exotic transport properties, such as large intrinsic anomalous (AHE) due to uncompensated Berry cur…
Role of magnetic exchange interactions in chiral-type Hall effects of epitaxial MnPtSn films
Peter Swekis, Jacob Gayles, Dominik Kriegner +5
Tetragonal Mn-based Heusler compounds feature rich exchange interactions and exotic topological magnetic textures, such as antiskyrmions, complimented by the chiral-type Hall effec…
Origin of the quasi-quantized Hall effect in ZrTe5
Stanislaw Galeski, Toni Ehmcke, Rafal Wawrzynczak +24
The quantum Hall effect (QHE) is traditionally considered a purely two-dimensional (2D) phenomenon. Recently, a three-dimensional (3D) version of the QHE has been reported in the D…
Unconventional Hall response in the quantum limit of HfTe5
S. Galeski, X. Zhao, R. Wawrzyńczak +14
Interacting electrons confined to their lowest Landau level in a high magnetic field can form a variety of correlated states, some of which manifest themselves in a Hall effect. Al…
Anomalous and topological Hall effects in epitaxial thin films of the noncollinear antiferromagnet MnSn
James M. Taylor, Anastasios Markou, Edouard Lesne +6
Noncollinear antiferromagnets with a D0 (space group = 194, P6/mmc) hexagonal structure have garnered much attention for their potential applications in topological sp…
Thickness dependence of the anomalous Nernst effect and the Mott relation of Weyl-semimetal Co2MnGa thin films
Gyu-Hyeon Park, Helena Reichlova, Richard Schlitz +12
We report a robust anomalous Nernst effect in Co2MnGa thin films in the thickness regime between 20 and 50 nm. The anomalous Nernst coefficient varied in the range of -2.0 to -3.0…
Imaging and writing magnetic domains in the non-collinear antiferromagnet MnSn
Helena Reichlova, Tomas Janda, Joao Godinho +12
Harnessing the unique properties of non-collinear antiferromagnets (AFMs) will be essential for exploiting the full potential of antiferromagnetic spintronics. Indeed, many of the…
Magnetic and electrical transport signatures of uncompensated moments in epitaxial thin films of the non-collinear antiferromagnet MnIr
James M. Taylor, Edouard Lesne, Anastasios Markou +13
Non-collinear antiferromagnets, with either an L1 cubic crystal lattice (e.g. MnIr and MnPt) or a D0 hexagonal structure (e.g. MnSn and MnGe),…
Thickness dependence of the anomalous Hall effect in thin films of the topological semimetal CoMnGa
Anastasios Markou, Dominik Kriegner, Jacob Gayles +8
Topological magnetic semimetals promise large Berry curvature through the distribution of the topological Weyl nodes or nodal lines and further novel physics with exotic transport…
Epitaxial growth, structural characterization and exchange bias of non-collinear antiferromagnetic MnIr thin films
James M. Taylor, Edouard Lesne, Anastasios Markou +8
Antiferromagnetic materials are of great interest for spintronics. Here we present a comprehensive study of the growth, structural characterization, and resulting magnetic properti…
All Electrical Access to Topological Transport Features in MnPtSn Films
Richard Schlitz, Peter Swekis, Anastasios Markou +7
The presence of non-trivial magnetic topology can give rise to non-vanishing scalar spin chirality and consequently a topological Hall or Nernst effect. In turn, topological transp…