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 allows to move from charge to spin based logic gates. We study a proof-of-principle logic device based on the ferrimagnetic insulator Yttrium Iron Garnet, with Pt strips acting as injectors and detectors for non-equilibrium magnons. We experimentally observe incoherent superposition of magnons generated by different injectors. This allows to implement a fully functional majority gate, enabling multiple logic operations (AND and OR) in one and the same device. Clocking frequencies of the order of several GHz and straightforward down-scaling make our device promising for applications.
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11 July 2016
Research Article|
July 14 2016
Magnon-based logic in a multi-terminal YIG/Pt nanostructure
Kathrin Ganzhorn;
Kathrin Ganzhorn
a)
1
Walther-Meißner-Institut
, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany
2Physik-Department,
Technische Universität München
, 85748 Garching, Germany
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Stefan Klingler;
Stefan Klingler
1
Walther-Meißner-Institut
, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany
2Physik-Department,
Technische Universität München
, 85748 Garching, Germany
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Tobias Wimmer
;
Tobias Wimmer
1
Walther-Meißner-Institut
, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany
2Physik-Department,
Technische Universität München
, 85748 Garching, Germany
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Stephan Geprägs;
Stephan Geprägs
1
Walther-Meißner-Institut
, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany
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Rudolf Gross
;
Rudolf Gross
1
Walther-Meißner-Institut
, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany
2Physik-Department,
Technische Universität München
, 85748 Garching, Germany
3
Nanosystems Initiative Munich
, 80799 Munich, Germany
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Hans Huebl;
Hans Huebl
b)
1
Walther-Meißner-Institut
, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany
2Physik-Department,
Technische Universität München
, 85748 Garching, Germany
3
Nanosystems Initiative Munich
, 80799 Munich, Germany
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Sebastian T. B. Goennenwein
Sebastian T. B. Goennenwein
c)
1
Walther-Meißner-Institut
, Bayerische Akademie der Wissenschaften, 85748 Garching, Germany
2Physik-Department,
Technische Universität München
, 85748 Garching, Germany
3
Nanosystems Initiative Munich
, 80799 Munich, Germany
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a)
Electronic mail: kathrin.ganzhorn@wmi.badw.de
b)
Electronic mail: huebl@wmi.badw.de
c)
Electronic mail: goennenwein@wmi.badw.de
Appl. Phys. Lett. 109, 022405 (2016)
Article history
Received:
May 12 2016
Accepted:
July 04 2016
Citation
Kathrin Ganzhorn, Stefan Klingler, Tobias Wimmer, Stephan Geprägs, Rudolf Gross, Hans Huebl, Sebastian T. B. Goennenwein; Magnon-based logic in a multi-terminal YIG/Pt nanostructure. Appl. Phys. Lett. 11 July 2016; 109 (2): 022405. https://doi.org/10.1063/1.4958893
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