Nanopatterning reconfigurable magnetic landscapes via thermally assisted scanning probe lithography

Albisetti E; Petti D; Pancaldi M; Madami M; Tacchi S; Curtis J; King WP; Papp Ádám; Csaba György; Porod W; Vavassori P; Riedo E; Bertacco R: Nanopatterning reconfigurable magnetic landscapes via thermally assisted scanning probe lithography.
NATURE NANOTECHNOLOGY, 11 (6). pp. 545-551. ISSN 1748-3387 (2016)

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Folyóiratcikk

Szerző azonosítók:

Név	ORCID	MTMT szerző azonosító
Albisetti E
Petti D
Pancaldi M
Madami M
Tacchi S
Curtis J
King WP
Papp Ádám		10045902
Csaba György		10057150
Porod W
Vavassori P
Riedo E
Bertacco R

Absztrakt (kivonat):

The search for novel tools to control magnetism at the nanoscale is crucial for the development of new paradigms in optics, electronics and spintronics. So far, the fabrication of magnetic nanostructures has been achieved mainly through irreversible structural or chemical modifications. Here, we propose a new concept for creating reconfigurable magnetic nanopatterns by crafting, at the nanoscale, the magnetic anisotropy landscape of a ferromagnetic layer exchange-coupled to an antiferromagnetic layer. By performing localized field cooling with the hot tip of a scanning probe microscope, magnetic structures, with arbitrarily oriented magnetization and tunable unidirectional anisotropy, are reversibly patterned without modifying the film chemistry and topography. This opens unforeseen possibilities for the development of novel metamaterials with finely tuned magnetic properties, such as reconfigurable magneto-plasmonic and magnonic crystals. In this context, we experimentally demonstrate spatially controlled spin wave excitation and propagation in magnetic structures patterned with the proposed method. © 2016 Macmillan Publishers Limited. All rights reserved.

Folyóirat címe:

NATURE NANOTECHNOLOGY

Megjelenés éve:

2016

Kötet:

Szám:

Oldalak:

pp. 545-551

ISSN:

1748-3387

Intézmény:

Pázmány Péter Katolikus Egyetem