603 citations · 2.7k across the 47 of their papers we have counts for
8 papers · 1 filter
Spin-torque Dynamics for Noise Reduction in Vortex-based Sensors
Mafalda Jotta Garcia, Julien Moulin, Steffen Wittrock +12
Performance of magnetoresistive sensors is today mainly limited by their 1/f low-frequency noise. Here, we study this noise component in vortex-based TMR sensors. We compare the no…
An insulating doped antiferromagnet with low magnetic symmetry as a room temperature spin conduit
Andrew Ross, Romain Lebrun, Lorenzo Baldrati +10
We report room temperature long-distance spin transport of magnons in antiferromagnetic thin film hematite doped with Zn. The additional dopants significantly alter the magnetic an…
Electrical detection of the spin reorientation transition in antiferromagnetic TmFeO thin films by spin Hall magnetoresistance
Sven Becker, Andrew Ross, Romain Lebrun +7
TmFeO (TFO) is a canted antiferromagnet that undergoes a spin reorientation transition (SRT) with temperature between 82 K and 94 K in single crystals. In this temperature regi…
Beyond the gyrotropic motion: dynamic C-state in vortex spin torque oscillators
Steffen Wittrock, Philippe Talatchian, Miguel Romera Rabasa +9
In the present study, we investigate a dynamical mode beyond the gyrotropic (G) motion of a magnetic vortex core in a confined magnetic disk of a nano-pillar spin torque nano oscil…
Long-distance spin-transport across the Morin phase transition up to room temperature in ultra-low damping single crystals of the antiferromagnet α-Fe2O3
Romain Lebrun, Andrew Ross, Olena Gomonay +7
Antiferromagnetic materials can host spin-waves with polarizations ranging from circular to linear depending on their magnetic anisotropies. Until now, only easy-axis anisotropy an…
Concurrent magneto-optical imaging and magneto-transport readout of electrical switching of insulating antiferromagnetic thin films
Felix Schreiber, Lorenzo Baldrati, Christin Schmitt +4
We demonstrate stable and reversible current induced switching of large-area () antiferromagnetic domains in NiO/Pt by performing concurrent transport and magneto-opti…
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…
Structural sensitivity of the spin Hall magnetoresistance in antiferromagnetic thin films
Andrew Ross, Romain Lebrun, Camilo Ulloa +7
Reading the magnetic state of antiferromagnetic (AFM) thin films is key for AFM spintronic devices. We investigate the underlying physics behind the spin Hall magnetoresistance (SM…