Resonant Amplification of Intrinsic Magnon Modes and Generation of New Extrinsic Modes in a Two-Dimensional Array of Interacting Multiferroic Nanomagnets by Surface Acoustic Waves

Nanoscale ◽  
2021 ◽  
Author(s):  
Anulekha De ◽  
Justine Lynn Drobitch ◽  
Sudip Majumder ◽  
Saswati Barman ◽  
S. Bandyopadhyay ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Spin Wave ◽  
Acoustic Waves ◽  
Kerr Effect ◽  
Surface Acoustic Waves ◽  
Optical Kerr Effect ◽  
Two Dimensional ◽  
Time Resolved ◽  
Magneto Optical Kerr Effect

Using time-resolved magneto optical Kerr effect (TR-MOKE) microscopy, we demonstrate surface-acoustic-wave (SAW) induced resonant amplification of intrinsic spin-wave (SW) modes, as well as generation of new extrinsic or driven modes...

scholarly journals Spin wave non-reciprocity and beating in permalloy by the time-resolved magneto-optical Kerr effect

2014 ◽  
Vol 47 (38) ◽  
pp. 385002 ◽  
Author(s):  
Siddharth Rao ◽  
Jungbum Yoon ◽  
Jan Rhensius ◽  
Charanjit S Bhatia ◽  
Hyunsoo Yang
Keyword(s):  
Spin Wave ◽  
Kerr Effect ◽  
Optical Kerr Effect ◽  
Time Resolved ◽  
Magneto Optical Kerr Effect

scholarly journals Formation of a Complex Topologies of SAW-Based Inertial Sensors by Laser Thin Film Local Evaporation

Micromachines ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 10
Author(s):  
Alexander Kukaev ◽  
Dmitry Lukyanov ◽  
Denis Mikhailenko ◽  
Daniil Safronov ◽  
Sergey Shevchenko ◽  
...  
Keyword(s):  
Thin Film ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Acoustic Waves ◽  
Inertial Sensors ◽  
Surface Acoustic Waves ◽  
Sensing Element ◽  
Small Series ◽  
Evaporation Technique ◽  
Photolithography Process

Originally, sensors based on surface acoustic waves are fabricated using photolithography, which becomes extremely expensive when a small series or even single elements are needed for the research. A laser thin film local evaporation technique is proposed to substitute the photolithography process in the production of surface acoustic wave based inertial sensors prototypes. To estimate its potential a prototype of a surface acoustic wave gyroscope sensing element was fabricated and tested. Its was shown that the frequency mismatch is no more than 1%, but dispersion of the wave on small inertial masses leads to a spurious parasitic signal on receiving electrodes. Possible ways of its neglecting is discussed.

scholarly journals Magneto-optical Kerr effect in spin split two-dimensional massive Dirac materials

2D Materials ◽  
2020 ◽  
Vol 7 (2) ◽  
pp. 025011 ◽  
Author(s):  
G Catarina ◽  
N M R Peres ◽  
J Fernández-Rossier
Keyword(s):  
Kerr Effect ◽  
Optical Kerr Effect ◽  
Two Dimensional ◽  
Dirac Materials ◽  
Magneto Optical Kerr Effect

scholarly journals Influence of Waterproof Films on the Atomization Behavior of Surface Acoustic Waves

Micromachines ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 794 ◽  
Author(s):  
Huang ◽  
Hu ◽  
Han ◽  
Lei ◽  
Yang
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Acoustic Waves ◽  
Short Circuit ◽  
Surface Acoustic Waves ◽  
Film Coating ◽  
Experimental Results ◽  
Commercial Application

One of the reasons why commercial application of surface acoustic wave (SAW) atomization is not possible is due to the condensation of aerosol droplets generated during atomization, which drip on the interdigitated transducer (IDT), thereby causing electrodes to short-circuit. In order to solve this problem, a SU-8-2002 film coating on an IDT is proposed in this paper. The waterproof performance of the film coating was tested on a surface acoustic wave (SAW) device several times. The experimental results reveal that the film coating was robust. The experiment also investigated the effects of the SU-8-2002 film on atomization behavior and heating.

Laser-Generated Surface Acoustic Wave Technique for Crack Monitoring – A Review

2013 ◽  
Vol 7 (2) ◽  
pp. 211-220 ◽  
Author(s):  
Kun Chen ◽  
◽  
Xing Fu ◽  
Dante J. Dorantes-Gonzalez ◽  
Yanning Li ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Acoustic Waves ◽  
Numerical Models ◽  
Surface Acoustic Waves ◽  
Detection Methods ◽  
Quantitative Detection ◽  
Quantitative Monitoring ◽  
Crack Monitoring ◽  
Wave Technique

In this paper, the principle of surface acoustic wave techniques and their application to the monitoring of cracks are presented and compared to other classic non-destructive techniques. A practical classification of methods regarding the excitation and detection of surface acoustic waves is enumerated, among them, laser-generated surface acoustic wave technique is carefully analyzed as a prospective technique, and two important detection methods using piezoelectric and light deflection are described. Then, the strategies and variables used in crack monitoring based on laser-generated surface acoustic wave technique are reviewed. To achieve the goal of quantitative detection of cracks, most researchers use numerical models and experiments to characterize main crack features. Discussions and prospective approaches for further quantitative monitoring of cracks are provided.

Observation of Ferromagnetic Resonance inSrRuO3by the Time-Resolved Magneto-Optical Kerr Effect

2009 ◽  
Vol 102 (17) ◽  
Author(s):  
M. C. Langner ◽  
C. L. S. Kantner ◽  
Y. H. Chu ◽  
L. M. Martin ◽  
P. Yu ◽  
...  
Keyword(s):  
Ferromagnetic Resonance ◽  
Kerr Effect ◽  
Optical Kerr Effect ◽  
Time Resolved ◽  
Magneto Optical Kerr Effect
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