200 citations · 569 across the 13 of their papers we have counts for
13 papers
Electrically induced angular momentum flow between separated ferromagnets
Richard Schlitz, Matthias Grammer, Tobias Wimmer +7
Converting angular momentum between different degrees of freedom within a magnetic material results from a dynamic interplay between electrons, magnons and phonons. This interplay…
Influence of low-energy magnons on magnon Hanle experiments in easy-plane antiferromagnets
Janine Gückelhorn, Akashdeep Kamra, Tobias Wimmer +5
Antiferromagnetic materials host pairs of spin-up and spin-down magnons which can be described in terms of a magnonic pseudospin. The close analogy between this magnonic pseudospin…
Magnon transport in /Pt nanostructures with reduced effective magnetization
Janine Gückelhorn, Tobias Wimmer, Manuel Müller +4
For applications making use of magnonic spin currents damping effects, which decrease the spin conductivity, have to be minimized. We here investigate the magnon transport in an yt…
Antiferromagnetic magnon pseudospin: Dynamics and diffusive transport
Akashdeep Kamra, Tobias Wimmer, Hans Huebl +1
We formulate a theoretical description of antiferromagnetic magnons and their transport in terms of an associated pseudospin. The need and strength of this formulation emerges from…
Quantitative comparison of magnon transport experiments in three-terminal YIG/Pt nanostructures acquired via dc and ac detection techniques
Janine Gückelhorn, Tobias Wimmer, Stephan Geprägs +3
All-electrical generation and detection of pure spin currents is a promising way towards controlling the diffusive magnon transport in magnetically ordered insulators. We quantitat…
Observation of Antiferromagnetic Magnon Pseudospin Dynamics and the Hanle effect
Tobias Wimmer, Akashdeep Kamra, Janine Gückelhorn +5
We report on experiments demonstrating coherent control of magnon spin transport and pseudospin dynamics in a thin film of the antiferromagnetic insulator hematite utilizing two Pt…
Anomalous spin Hall angle of a metallic ferromagnet determined by a multiterminal spin injection/detection device
Tobias Wimmer, Birte Coester, Stephan Geprägs +4
We report on the determination of the anomalous spin Hall angle in the ferromagnetic metal alloy cobalt-iron (CoFe, CoFe). This is accomplished by measuring the spin…
Spin transport in a magnetic insulator with zero effective damping
Tobias Wimmer, Matthias Althammer, Lukas Liensberger +5
Applications based on spin currents strongly profit from the control and reduction of their effective damping and their transport properties. We here experimentally observe magnon…
Current direction anisotropy of the spin Hall magnetoresistance in nickel ferrite thin films with bulk-like magnetic properties
Matthias Althammer, Amit Vikam Singh, Tobias Wimmer +5
We utilize spin Hall magnetoresistance (SMR) measurements to experimentally investigate the pure spin current transport and magnetic properties of nickel ferrite (NiFe2O4,NFO)/norm…
Non-local magnon transport in the compensated ferrimagnet GdIG
Kathrin Ganzhorn, Tobias Wimmer, Joseph Barker +8
We study the diffusive transport of magnons through the compensated ferrimagnetic insulator Gd3Fe5O12 (GdIG). The magnons are injected and detected electrically in a non-local meas…
Temperature dependence of the non-local spin Seebeck effect in YIG/Pt nanostructures
Kathrin Ganzhorn, Tobias Wimmer, Joel Cramer +7
We study the transport of thermally excited non-equilibrium magnons through the ferrimagnetic insulator YIG using two electrically isolated Pt strips as injector and detector. The…
Observation of the spin Nernst effect
Sibylle Meyer, Yan-Ting Chen, Sebastian Wimmer +8
The observation of the spin Hall effect triggered intense research on pure spin current transport. With the spin Hall effect, the spin Seebeck effect, and the spin Peltier effect a…
Magnon based logic in a multi-terminal YIG/Pt nanostructure
Kathrin Ganzhorn, Stefan Klingler, Tobias Wimmer +4
Boolean logic is the foundation of modern digital information processing. Recently, there has been a growing interest in phenomena based on pure spin currents, which allow to move…