Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2012 Mar 9;108(10):106602.
doi: 10.1103/PhysRevLett.108.106602. Epub 2012 Mar 5.

Local charge and spin currents in magnetothermal landscapes

Mathias Weiler  1 , Matthias Althammer, Franz D Czeschka, Hans Huebl, Martin S Wagner, Matthias Opel, Inga-Mareen Imort, Günter Reiss, Andy Thomas, Rudolf Gross, Sebastian T B Goennenwein
Affiliations

Local charge and spin currents in magnetothermal landscapes

Mathias Weiler et al. Phys Rev Lett. .

Abstract

A scannable laser beam is used to generate local thermal gradients in metallic (Co2FeAl) or insulating (Y3Fe5O12) ferromagnetic thin films. We study the resulting local charge and spin currents that arise due to the anomalous Nernst effect (ANE) and the spin Seebeck effect (SSE), respectively. In the local ANE experiments, we detect the voltage in the Co2FeAl thin film plane as a function of the laser-spot position and external magnetic field magnitude and orientation. The local SSE effect is detected in a similar fashion by exploiting the inverse spin Hall effect in a Pt layer deposited on top of the Y3Fe5O12. Our findings establish local thermal spin and charge current generation as well as spin caloritronic domain imaging.

PubMed Disclaimer

LinkOut - more resources