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A perspective on surface-adsorbed single atom magnets as atomic-scale magnetic memory

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Title
A perspective on surface-adsorbed single atom magnets as atomic-scale magnetic memory
Author(s)
F. Donati; A.J. Heinrich
Publication Date
2021-10-18
Journal
Applied Physics Letters, v.119, no.16
Publisher
American Institute of Physics Inc.
Abstract
© 2021 Author(s).Downscaling single magnetic bits to the ultimate size of individual atoms would open the possibility to maximize the magnetic storage density on a solid surface. However, realizing stable magnets of the size of one atom remained an elusive challenge for more than a decade. Recent advances show that single lanthanide atoms on suitable surfaces can preserve their magnetization on a timescale of days at a temperature of 1 K or below. Such properties enable the use of these atoms as stable magnets for low temperature experiments, opening a platform for testing magnetic recording techniques at the atomic scale. In this article, we describe the single atom magnets that have been investigated and the methods employed to address their magnetic properties. We will discuss the limitations of the present systems and techniques and identify the challenges to close the gap toward potential future technological applications.
URI
https://pr.ibs.re.kr/handle/8788114/10653
DOI
10.1063/5.0070483
ISSN
0003-6951
Appears in Collections:
Center for Quantum Nanoscience(양자나노과학 연구단) > 1. Journal Papers (저널논문)
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