Magnetic Films on Nanoparticle Arrays

Albrecht, Manfred

doi:10.2174/1876531901204010042

Cited by 15 publications

(6 citation statements)

References 81 publications

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“…[23] An alternate way of obtaining controlled and scalable fabrication of 3D curvilinear nanostructures is the utilization of the curvature templates with the subsequent thin film coatings. Typically, spherical particles [45,169,246,247] (Figure 7c) and nanocylinders [235,248] are used as templates for the anisotropic coating, when only some part of the curvilinear structure is magnetically functionalized. This allows to study the formation of dipolar-induced arrangement of out-of-plane [249] and in-plane magnetized [9,235,250] thin magnetic shells and realization of the magnetically controlled Janus micromotors, [45,[251][252][253] investigations of magnetoresistive effects on the magnetically capped monolayer of spherical particles.…”

Section: Fabrication Methodsmentioning

confidence: 99%

“…[18] Copyright 2017, American Physical Society. methods, for example, MFM, that provide a spatial resolution up to 50 nm for curved nanoobjects; [9,101,169,245,247,[303][304][305][306][307] MOKE microscopy, [27,144,235,248,294] that recently was enabled for pump-probe time-resolved measurements of micro-tetrapod geometries; [284] electron-based methods, including Lorentz transmission electron microscopy (TEM) [308,309] and off-axis electron holography, [310,311] that allows to perform the detail static reconstruction of magnetic textures in flat [312,313] and 3D [240,287,314] curved geometries, see Figure 8g; scanning electron technique with polarization analysis (SEMPA), [315] that is suitable for imaging flat curved magnetic geometries, [288,316] see Figure 8h; X-ray-based visualization methods, including X-ray magnetic circular dichroism photoelectron emission microscopy (XMCD-PEEM). [9,24,25,317,318] While these methods are limited to the analysis of simple magnetic geometries, the visualization of complex 3D shape geometries requires the utilization of the tomographic-based approaches.…”

Section: Characterization Methodsmentioning

confidence: 99%

“…Namely, it is possible to form the random textures by incident ion-beam erosion of substrates [101,255,256] or periodical textures by means particles self-assembly. [45,169,246,247] Varying these approaches for the template fabrication will help to form 3D templates with predefined topographic and altitude profiles, which is the required developments that would presumably lead to the fabrication of 3D nanostructures with the same quality and precision as those obtained within the 2D lithography techniques. The utilization of the strain-induced magnetic origami [359][360][361] is another perspective direction, that allows to construct various predefined 3D magnetic designs in combination with standard lithography.…”

Section: Fabricationmentioning

confidence: 99%

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New Dimension in Magnetism and Superconductivity: 3D and Curvilinear Nanoarchitectures

et al. 2021

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condensed matter physics, including cell membranes, [1] nematic crystals, [2,3] superfluids, [4] semiconductors, [5][6][7][8] ferromagnets, [9] and superconductors. [10,11] Currently, much attention is paid to strongly correlated electronic systems, for example, ferromagnets and superconductors, as they provide a unique tool to manipulate the topology of coexisting vector and scalar fields, associated with geometries of conventional systems.Until recently, in the case of magnetism, the influence of the geometry on the spin vector fields was addressed primarily by the design of the sample boundaries. This approach naturally brings the shape anisotropy to the system and leads to the formation of specific spin textures, for example, magnetic vortices [12] and antivortices [13] as well as provides control over the dynamics of the topologically nontrivial magnetic solitons. [14][15][16][17][18] This discussion also tackles the state of the art in modern experimental antiferromagnetism, where the design of the sample topography and boundaries allows to control the domain wall states. [19][20][21][22] With the development of novel fabrication techniques allowing to realize complex 3D architectures, not only the boundary effects but also the extrinsic geometrical properties (e.g., local curvatures) can be addressed rigorously for the case of ferromagnets [23][24][25][26][27] as well as superconductors. [28][29][30] The explored effects are directly related to the interplay between the Traditionally, the primary field, where curvature has been at the heart of research, is the theory of general relativity. In recent studies, however, the impact of curvilinear geometry enters various disciplines, ranging from solid-state physics over soft-matter physics, chemistry, and biology to mathematics, giving rise to a plethora of emerging domains such as curvilinear nematics, curvilinear studies of cell biology, curvilinear semiconductors, superfluidity, optics, 2D van der Waals materials, plasmonics, magnetism, and superconductivity. Here, the state of the art is summarized and prospects for future research in curvilinear solid-state systems exhibiting such fundamental cooperative phenomena as ferromagnetism, antiferromagnetism, and superconductivity are outlined. Highlighting the recent developments and current challenges in theory, fabrication, and characterization of curvilinear micro-and nanostructures, special attention is paid to perspective research directions entailing new physics and to their strong application potential. Overall, the perspective is aimed at crossing the boundaries between the magnetism and superconductivity communities and drawing attention to the conceptual aspects of how extension of structures into the third dimension and curvilinear geometry can modify existing and aid launching novel functionalities. In addition, the perspective should stimulate the development and dissemination of research and development oriented techniques to facilitate rapid transitions from laboratory demonstrations to industry-...

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Section: Fabrication Methodsmentioning

confidence: 99%

Section: Characterization Methodsmentioning

confidence: 99%

Section: Fabricationmentioning

confidence: 99%

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New Dimension in Magnetism and Superconductivity: 3D and Curvilinear Nanoarchitectures

et al. 2021

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“…In our example the particles have been covered by a CoPd multilayer that is magnetically not connected between the individual particles, as demonstrated by the contrast in the magnetic force microscopy (MFM) image. Such a technique has been pushed far with FePt alloys to realize bit-patterned media for magnetic recording [80], but has not been transferred to a practical device level due to difficulties in the reliability and the scalability. The next example (Fig.…”

Section: 31-self-assembly Versus Top-down Approaches: An Overviewmentioning

confidence: 99%

Self-assembly of nanoalloys

Brune¹,

Courty²,

Petit³

et al. 2013

Nanoalloys

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“…Furthermore, structural and magnetic damage does not occur. In fact, nanofabrication of magnetic films using the self-assembly technique has recently been widely reported [18,19].…”

Section: Introductionmentioning

confidence: 99%