Multicracking and Magnetic Behavior of Ni<sub>80</sub>Fe<sub>20</sub> Nanowires Deposited onto a Polymer Substrate

Merabtine, Skander; Zighem, F.; Faurie, D.; Garcia-Sanchez, A.; Lupo, Pierpaolo; Adeyeye, A. O.

doi:10.1021/acs.nanolett.8b00922

Cited by 20 publications

(19 citation statements)

References 28 publications

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“…Especially, magnetic thin films and nanostructures on polymer substrates can be used for flexible/stretchable data storage and transfer devices or magnetoelectric sensors . Indeed, large arrays of magnetic nanostructures (nanowires, dots, antidots, …) are increasingly studied for spintronics and the transfer from “classical” to “polymer” substrates is of growing interest for broadening the range of applications extends . However, flexible or stretchable magnetic systems can be submitted to strains (generated during devices fabrication and use) so that it is crucial to understand their magnetoelastic behavior which can be complex in the case of nanostructure arrays.…”

Section: Strains Transmission Factors αXx and αYy For The Different Smentioning

confidence: 99%

“…are increasingly studied for spintronics and the transfer from "classical" to "polymer" substrates is of growing interest for broadening the range of applications extends. [15][16][17] However, flexible or stretchable magnetic systems can be submitted to strains (generated during devices fabrication [18] and use [19] ) so that it is crucial to understand their magnetoelastic behavior which can be complex in the case of nanostructure arrays. Indeed, strain heterogeneities in nanostructure/ polymer substrate systems due to the lateral patterning [20] can strongly influence the whole static and dynamic magnetic response.…”

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confidence: 99%

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Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

Challab

Zighem

Faurie

et al. 2018

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The control of magnetoelastic effects in magnetic media, their improvement or even their minimization according to the intended applications is a current problem. In this work, the effect of the elastic strain on the magnetic properties of Ni60Fe40 continuous films and nanowires deposited on Kapton® substrates has been investigated. For this purpose, piezoactuation mechanical tests are performed in situ with ferromagnetic resonance measurements. It has been observed that the continuous thin film and the array of nanowires exhibit distinct behaviors in the presence of an elastic strain field. Precisely, the induced magnetoelastic anisotropy is much less pronounced in the case of nanowires. This difference in behavior has been explained/investigated based on finite element simulations. These latter revealed that the average strain transmitted from flexible substrate to magnetic medium is less important in the case of nanowires compared to continuous film. This lack of strain transfer/transmission is related to the relative amount of free surface of the nanostructures combined with a strong mechanical contrast between Ni60Fe40 and Kapton (viz., a deposit relatively much more stiffer than the substrate). This important effect can be exploited in the future by controlling and optimizing geometries of nanostructures.

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Section: Strains Transmission Factors αXx and αYy For The Different Smentioning

confidence: 99%

mentioning

confidence: 99%

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

Challab

Zighem

Faurie

et al. 2018

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“…As shown in Figure b, the NP‐LFO (111) film nearly retains the values of H z c under bending. From a practical point of view, nanopillar arrays is reported to have better bending flexible fatigue than films, which can be a good choice for flexible devices with stable properties under bending.…”

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confidence: 99%

A Strategy to Modulate the Bending Coupled Microwave Magnetism in Nanoscale Epitaxial Lithium Ferrite for Flexible Spintronic Devices

Shen

Lan

et al. 2018

Advanced Science

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With the development of flexible electronics, the mechanical flexibility of functional materials is becoming one of the most important factors that needs to be considered in materials selection. Recently, flexible epitaxial nanoscale magnetic materials have attracted increasing attention for flexible spintronics. However, the knowledge of the bending coupled dynamic magnetic properties is poor when integrating the materials in flexible devices, which calls for further quantitative analysis. Herein, a series of epitaxial LiFe5O8 (LFO) nanostructures are produced as research models, whose dynamic magnetic properties are characterized by ferromagnetic resonance (FMR) measurements. LFO films with different crystalline orientations are discussed to determine the influence from magnetocrystalline anisotropy. Moreover, LFO nanopillar arrays are grown on flexible substrates to reveal the contribution from the nanoscale morphology. It reveals that the bending tunability of the FMR spectra highly depends on the demagnetization field energy of the sample, which is decided by the magnetism and the shape factor in the nanostructure. Following this result, LFO film with high bending tunability of microwave magnetic properties, and LFO nanopillar arrays with stable properties under bending are obtained. This work shows guiding significances for the design of future flexible tunable/stable microwave magnetic devices.

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“…(i) Curvilinear magneto-mechanical interaction should be addressed in the generalized theory of curvilinear magnetism. Due to a strong interconnection between the geometry and symmetry of the magnetic subsystem, the magnetostriction and magnetoelastic interactions [99,333,334] are envisioned to be crucial for the curvilinear magnetic framework as they are defining additional binding interconnections between the magnetic and geometrical spaces. Namely, the magnetostriction interaction through even a small tensile deformation could change the equilibrium magnetization distribution in torsional spring nanowires.…”

Section: Theorymentioning

confidence: 99%

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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Multicracking and Magnetic Behavior of Ni₈₀Fe₂₀ Nanowires Deposited onto a Polymer Substrate

Cited by 20 publications

References 28 publications

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

A Strategy to Modulate the Bending Coupled Microwave Magnetism in Nanoscale Epitaxial Lithium Ferrite for Flexible Spintronic Devices

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

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Multicracking and Magnetic Behavior of Ni80Fe20 Nanowires Deposited onto a Polymer Substrate

Cited by 20 publications

References 28 publications

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

Local Stiffness Effect on Ferromagnetic Response of Nanostructure Arrays in Stretchable Systems

A Strategy to Modulate the Bending Coupled Microwave Magnetism in Nanoscale Epitaxial Lithium Ferrite for Flexible Spintronic Devices

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

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Multicracking and Magnetic Behavior of Ni₈₀Fe₂₀ Nanowires Deposited onto a Polymer Substrate