Temperature effect on the mechanical properties of gold nano films with different thickness

Bîrleanu, Corina; Pustan, Marius; Merie, Violeta; Müller, Raluca; Voicu, Rodica; Baracu, Angela; Craciun, Stefan Ionut

doi:10.1088/1757-899x/147/1/012021

Cited by 21 publications

(16 citation statements)

References 15 publications

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“…The calculated slopes with their corresponding errors and the transfer efficiencies (TEs) (strain induced in the PMN-PT actuator equals 100%) are given in Table I. Interestingly, the sample bonded via the SU8 coating shows a much higher transfer efficiency (69%) than for gold thermo-compression bonding (25%) although the Young’s modulus of hardened SU8 (≈2–4 GPa26) is about 20 times lower than the modulus of a thin gold layer (≈60–70 GPa27). This seems counterintuitive in the first place, as one might think that a harder layer results in a higher strain transfer, while the opposite is observed here.…”

Section: Discussion Of Results and Simulationsmentioning

confidence: 99%

Comparison of different bonding techniques for efficient strain transfer using piezoelectric actuators

Ziss

Martín‐Sánchez

Lettner

et al. 2017

Journal of Applied Physics

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In this paper, strain transfer efficiencies from a single crystalline piezoelectric lead magnesium niobate-lead titanate substrate to a GaAs semiconductor membrane bonded on top are investigated using state-of-the-art x-ray diffraction (XRD) techniques and finite-element-method (FEM) simulations. Two different bonding techniques are studied, namely, gold-thermo-compression and polymer-based SU8 bonding. Our results show a much higher strain-transfer for the “soft” SU8 bonding in comparison to the “hard” bonding via gold-thermo-compression. A comparison between the XRD results and FEM simulations allows us to explain this unexpected result with the presence of complex interface structures between the different layers.

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Section: Discussion Of Results and Simulationsmentioning

confidence: 99%

Comparison of different bonding techniques for efficient strain transfer using piezoelectric actuators

Ziss

Martín‐Sánchez

Lettner

et al. 2017

Journal of Applied Physics

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“…Such increase in work of adhesion due to low surface roughness has been reported in gold nano thin lms. 43 3.2 Gas sensing studies 3.2.1. Sensitivity.…”

Section: Characterizationmentioning

confidence: 99%

Phase tuned synthesis of titanium dioxide nanoparticles for room temperature enhanced ammonia detection

et al. 2017

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“…All simulations are in 3D. As indicated earlier, failure of the NFT is a major impediment holding back the implementation of HAMR and so we look to keep temperatures of the Au film under 400 K. Even with temperature rises of ~100 K the hardness of Au films may be reduced by half and adhesion forces contributing to film dislocation can significantly increase [51,52]. The disk rotational speed is typically 5400 rpm and the linear speed used for the recording is roughly 20 m/s, resulting in roughly 1 ns for the heating process.…”

Section: Thermal Behaviormentioning

confidence: 99%

Optical and thermal analysis of the light-heat conversion process employing an antenna-based hybrid plasmonic waveguide for HAMR

Abadía¹,

Bello²,

Zhong³

et al. 2018

Opt. Express

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Abstract:We investigate a tapered, hybrid plasmonic waveguide which has previously been proposed as an optically efficient near-field transducer (NFT), or component thereof, in several devices which aim to exploit nanofocused light. We numerically analyze how light is transported through the waveguide and ultimately focused via effective-mode coupling and taper optimization. Crucial dimensional parameters in this optimization process are identified that are not only necessary to achieve maximum optical throughput, but also optimum thermal performance with specific application towards heat-assisted magnetic recording (HAMR). It is shown that existing devices constructed on similar waveguides may benefit from a heat spreader to avoid deformation of the plasmonic element which we achieve with no cost to the optical efficiency. For HAMR, our design is able to surpass many industry requirements in regard to both optical and thermal efficiency using pertinent figure of merits like 8.5% optical efficiency. 503-510 (2015). 15. C. Peng, "Efficient excitation of a monopole optical transducer for near-field recording," J. Appl. Phys. 112(4), 043108 (2012). 16. X. He, L. Yang, and T. Yang, "Optical nanofocusing by tapering coupled photonic-plasmonic waveguides," Opt.Express 19

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Temperature effect on the mechanical properties of gold nano films with different thickness

Cited by 21 publications

References 15 publications

Comparison of different bonding techniques for efficient strain transfer using piezoelectric actuators

Comparison of different bonding techniques for efficient strain transfer using piezoelectric actuators

Phase tuned synthesis of titanium dioxide nanoparticles for room temperature enhanced ammonia detection

Optical and thermal analysis of the light-heat conversion process employing an antenna-based hybrid plasmonic waveguide for HAMR

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