Individual Atomic-Scale Magnets Interacting with Spin-Polarized Field-Emitted Electrons

2012 ◽  
Vol 109 (9) ◽  
Author(s):  
Anika Schlenhoff ◽  
Stefan Krause ◽  
Andreas Sonntag ◽  
Roland Wiesendanger
Keyword(s):  
2001 ◽  
Vol 86 (18) ◽  
pp. 4132-4135 ◽  
Author(s):  
D. Wortmann ◽  
S. Heinze ◽  
Ph. Kurz ◽  
G. Bihlmayer ◽  
S. Blügel

1991 ◽  
Vol 231 ◽  
Author(s):  
R. Wiesendanger ◽  
D. Buergler ◽  
G. Tarrach ◽  
I.V. Shvets ◽  
H.-J. Guentherodt

AbstractWe report on a novel promising technique for the investigation of magnetic structures at surfaces at high spatial resolution, ultimately down to the atomic scale. This technique is based on the observation of vacuum tunneling of spin-polarized electrons by means of a scanning tunneling microscope (STM). We discuss appropriate probe tips for the spin-polarized STM (SPSTM) and describe initial experimental results. We further focus on the information obtained by SPSTM. Finally, the perspectives of SPSTM will be discussed.


2002 ◽  
Vol 89 (22) ◽  
Author(s):  
Haiqiang Yang ◽  
Arthur R. Smith ◽  
Margarita Prikhodko ◽  
Walter R. L. Lambrecht

Nano Letters ◽  
2017 ◽  
Vol 17 (9) ◽  
pp. 5660-5665 ◽  
Author(s):  
Nadine Hauptmann ◽  
Jan W. Gerritsen ◽  
Daniel Wegner ◽  
Alexander A. Khajetoorians

2004 ◽  
Vol 561 (2-3) ◽  
pp. 154-170 ◽  
Author(s):  
Arthur R. Smith ◽  
Rong Yang ◽  
Haiqiang Yang ◽  
Walter R.L. Lambrecht ◽  
Alexey Dick ◽  
...  

Science ◽  
2019 ◽  
Vol 363 (6431) ◽  
pp. 1065-1067 ◽  
Author(s):  
Cody Friesen ◽  
Hermann Osterhage ◽  
Johannes Friedlein ◽  
Anika Schlenhoff ◽  
Roland Wiesendanger ◽  
...  

The tunneling of spin-polarized electrons across a magnetic tunnel junction driven by a temperature gradient is a fundamental process for the thermal control of electron spin transport. We experimentally investigated the atomic-scale details of this magneto-Seebeck tunneling by placing a magnetic probe tip in close proximity to a magnetic sample at cryogenic temperature, with a vacuum as the tunneling barrier. Heating the tip and measuring the thermopower of the junction while scanning across the spin texture of the sample lead to spin-resolved Seebeck coefficients that can be mapped at atomic-scale lateral resolution. We propose a spin detector for spintronics applications that is driven solely by waste heat, using magneto-Seebeck tunneling to convert spin information into a voltage that can be used for further data processing.


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