Impact of Scaling on the Dipolar Coupling in Magnet–Insulator–Magnet Structures
| Autor: | Zhihong Chen, Joerg Appenzeller, Penumatcha Ashish Verma, Vinh Quang Diep, Lin Chia-Ching, Supriyo Datta |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Physics Magnetic domain Magnetic energy Electromagnet Condensed matter physics Force between magnets Demagnetizing field 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Electronic Optical and Magnetic Materials law.invention law Magnet 0103 physical sciences Electrical and Electronic Engineering Single domain 0210 nano-technology Magnetic dipole–dipole interaction |
| Zdroj: | IEEE Transactions on Magnetics. 52:1-7 |
| ISSN: | 1941-0069 0018-9464 |
| Popis: | The ability to control the magnetization of individual nanomagnets has made possible a broad class of devices, which store and manipulate information in the form of magnetization. For these devices to serve as building blocks for computation, they must be concatenable while allowing the information to flow in a directional manner. One scheme that has been proposed for this is the use of a dipolar coupling unit, a vertical stack of magnet–insulator–magnet, in which the information is transmitted from one magnet to the other through dipolar interaction. In this paper, we have used a novel magnetic force microscopy-based approach to demonstrate that a vertical dipolar coupling unit can be used to transfer information. We also investigated how the strength of the interaction can be maximized while preserving the directionality. The experimental observations were understood using micromagnetic simulations, and a scaling approach has been proposed for ultra-thin magnets. |
| Databáze: | OpenAIRE |
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