Nanomagnonics around the corner

Spintronics: Nanomagnonics around the corner

Dirk Grundler

Nature Nanotechnology 11, 407 (2016)

Reconfigurable magnonic conduits realized in domain walls: a, Spin wave of wavevector k propagating in a domain wall between two magnetic domains (top view). Spins precess at their given position (red arrows); electrons do not flow. The white arrows indicate magnetization vectors, M. b, A magnetic field, H, shifts the spin-wave nanochannel because a domain of magnetization, M, grows at the expense of the other domain. Magnetic volume charges are indicated by plus and minus signs.

A reconfigurable waveguide for energy-efficient transmission and local manipulation of information in a nanomagnetic device.

Haldar, A., Kumar, D., Adeyeye, A. O.  
Nature Nanotech. 11, 437 (2016)

Schematic of the experiment and operation principle.

Magnetic domain walls as reconfigurable spin-wave nanochannels
K. Wagner, A. Kákay, K. Schultheiss, A. Henschke, T. Sebastian & H. Schultheiss  
Nature Nanotechn. 11, 432 (2016)

Channelling principle, sample geometry and magnetization configuration.