468 citations · 3k across the 60 of their papers we have counts for
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Spin Hall Magnetoresistance in Antiferromagnetic Insulators
Stephan Geprägs, Matthias Opel, Johanna Fischer +4
Antiferromagnetic materials promise improved performance for spintronic applications, as they are robust against external magnetic field perturbations and allow for faster magnetiz…
Engineering altermagnetic symmetry to enable anomalous Hall response in CrMnSb
Miriam G. Fischer, Lukas Odenbreit, Olena Gomonay +10
Altermagnets are a promising class of materials for spintronic applications. However, compounds that simultaneously combine the symmetry required to support an anomalous Hall effec…
Switchable Exchange Bias Resulting from Correlated Domain Structures in Orthogonally Coupled Antiferromagnet/Ferromagnet van der Waals Heterostructures
Aditya Kumar, Sadeed Hameed, Thibaud Denneulin +8
Van der Waals (vdW) magnetic heterostructures offer a versatile platform for engineering interfacial spin interactions with atomic precision, enabling nontrivial spin textures and…
Phase transitions associated with magnetic-field induced topological orbital momenta in a non-collinear antiferromagnet
Sihao Deng, Olena Gomonay, Jie Chen +12
Resistivity measurements are widely exploited to uncover electronic excitations and phase transitions in metallic solids. While single crystals are preferably studied to explore cr…
Antiferromagnetic insulatronics: spintronics in insulating 3d metal oxides with antiferromagnetic coupling
H. Meer, O. Gomonay, A. Wittmann +1
Antiferromagnetic transition metal oxides are an established and widely studied materials system in the context of spin-based electronics, commonly used as passive elements in exch…
Photocurrents, inverse Faraday effect and photospin Hall effect in MnAu
M. Merte, F. Freimuth, D. Go +6
Among antiferromagnetic materials, MnAu is one of the most intensively studied, and it serves as a very popular platform for testing various ideas related to antiferromagnetic…
Coupling of ferromagnetic and antiferromagnetic spin dynamics in MnAu/NiFe thin-film bilayers
Hassan Al-Hamdo, Tobias Wagner, Yaryna Lytvynenko +11
We investigate magnetization dynamics of MnAu/Py (NiFe) thin film bilayers using broadband ferromagnetic resonance (FMR) and Brillouin light scattering spectros…
Magnetic domain engineering in antiferromagnetic CuMnAs and MnAu devices
Sonka Reimers, Olena Gomonay, Oliver J. Amin +17
Antiferromagnetic materials hold potential for use in spintronic devices with fast operation frequencies and field robustness. Despite the rapid progress in proof-of-principle func…
Indirect optical manipulation of the antiferromagnetic order of insulating NiO by ultrafast interfacial energy transfer
Stephan Wust, Christopher Seibel, Hendrik Meer +14
We report the ultrafast, (sub)picosecond reduction of the antiferromagnetic order of the insulating NiO thin film in a Pt/NiO bilayer. This reduction of the antiferromagnetic order…
Strain-induced Shape Anisotropy in Antiferromagnetic Structures
Hendrik Meer, Olena Gomonay, Christin Schmitt +9
We demonstrate how shape-induced strain can be used to control antiferromagnetic order in NiO/Pt thin films. For rectangular elements patterned along the easy and hard magnetocryst…
Defect-driven antiferromagnetic domain walls in CuMnAs films
Sonka Reimers, Dominik Kriegner, Olena Gomonay +17
Efficient manipulation of antiferromagnetic (AF) domains and domain walls has opened up new avenues of research towards ultrafast, high-density spintronic devices. AF domain struct…
Antiferromagnetic Hysteresis above the Spin Flop Field
M. J. Grzybowski, C. F. Schippers, O. Gomonay +11
Magnetocrystalline anisotropy is essential in the physics of antiferromagnets and commonly treated as a constant, not depending on an external magnetic field. However, we demonstra…
Readout of a antiferromagnetic spintronics systems by strong exchange coupling of Mn2Au and Permalloy
S. P. Bommanaboyena, D. Backes, L. S. I. Veiga +14
In antiferromagnetic spintronics, the read-out of the staggered magnetization or Neel vector is the key obstacle to harnessing the ultra-fast dynamics and stability of antiferromag…
Magnon Transport in the Presence of Antisymmetric Exchange in a Weak Antiferromagnet
A. Ross, R. Lebrun, O. Gomonay +5
The Dzyaloshinskii-Moriya interaction (DMI) is at the heart of many modern developments in the research field of spintronics. DMI is known to generate noncollinear magnetic texture…
Effective strain manipulation of the antiferromagnetic state of polycrystalline NiO
A. Barra, A. Ross, O. Gomonay +9
As a candidate material for applications such as magnetic memory, polycrystalline antiferromagnets offer the same robustness to external magnetic fields, THz spin dynamics, and lac…
Direct imaging of current-induced antiferromagnetic switching revealing a pure thermomagnetoelastic switching mechanism
H. Meer, F. Schreiber, C. Schmitt +6
We unravel the origin of current-induced magnetic switching of insulating antiferromagnet/heavy metal systems. We utilize concurrent transport and magneto-optical measurements to i…
Spin Hall magnetoresistance in antiferromagnetic insulators
Stephan Geprägs, Matthias Opel, Johanna Fischer +5
Antiferromagnetic materials promise improved performance for spintronic applications, as they are robust against external magnetic field perturbations and allow for faster magnetiz…
Efficient spin torques in antiferromagnetic CoO/Pt quantified by comparing field- and current- induced switching
Lorenzo Baldrati, Christin Schmitt, Olena Gomonay +5
We achieve current-induced switching in collinear insulating antiferromagnetic CoO/Pt, with fourfold in-plane magnetic anisotropy. This is measured electrically by spin Hall magnet…
Propagation length of antiferromagnetic magnons governed by domain configurations
Andrew Ross, Romain Lebrun, Olena Gomonay +13
The compensated magnetic order and characteristic, terahertz frequencies of antiferromagnetic materials makes them promising candidates to develop a new class of robust, ultra-fast…
Mechanism of Néel order switching in antiferromagnetic thin films revealed by magnetotransport and direct imaging
Lorenzo Baldrati, Olena Gomonay, Andrew Ross +12
We probe the current-induced magnetic switching of insulating antiferromagnet/heavy metals systems, by electrical spin Hall magnetoresistance measurements and direct imaging, ident…
Spin colossal magnetoresistance in an antiferromagnetic insulator
Zhiyong Qiu, Dazhi Hou, Joseph Barker +3
Colossal magnetoresistance (CMR) refers to a large change in electrical conductivity induced by a magnetic field in the vicinity of a metal-insulator transition and has inspired ex…
Full angular dependence of the spin Hall and ordinary magnetoresistance in epitaxial antiferromagnetic NiO(001)/Pt thin films
Lorenzo Baldrati, Andrew Ross, Tomohiko Niizeki +11
We report the observation of the three-dimensional angular dependence of the spin Hall magnetoresistance (SMR) in a bilayer of the epitaxial antiferromagnetic insulator NiO(001) an…
Writing and Reading antiferromagnetic MnAu: Néel spin-orbit torques and large anisotropic magnetoresistance
S. Yu. Bodnar, L. Šmejkal, I. Turek +7
Antiferromagnets are magnetically ordered materials which exhibit no net moment and thus are insensitive to magnetic fields. Antiferromagnetic spintronics aims to take advantage of…
Manipulating antiferromagnets with magnetic fields: ratchet motion of multiple domain walls induced by asymmetric field pulses
Olena Gomonay, Mathias Kläui, Jairo Sinova
Future applications of antiferromagnets (AFs) in many spintronics devices rely on the precise manipulation of domain walls. The conventional approach using static magnetic fields i…