Article
Chemistry, Multidisciplinary
David Hoch, Xiong Yao, Menno Poot
Summary: We introduce a novel method to geometrically tune the tension in prestrained resonators. The method involves making Si3N4 strings with a designed predisplacement and allows for the study of dissipation mechanisms dependent on the stress. The results obtained from experiments and simulations show that the geometrically controlled stress can not only tune the resonator frequencies but also the damping rate. The findings have significant implications for the design and optimization of resonators.
Article
Energy & Fuels
Mostafa E. Mobasher, Haim Waisman
Summary: The study introduces a novel approach for calculating energy dissipation during fluid-driven fracturing in saturated porous media, deriving analytical functions for solid and fluid energy dissipation modes based on a thermodynamic NLDT formulation. The model is used to simulate hydraulic fracturing, investigating energy dissipation mechanisms and providing a physics-based foundation for optimization.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2022)
Article
Chemistry, Multidisciplinary
Jing Li, Bintong Huang, Yuanhao Wang, Aijia Li, Yong Wang, Yangyang Pan, Jia Chai, Ze Liu, Yueming Zhai
Summary: The single-molecule technique for investigating unlabeled proteins in solution is challenging, but nanopore sensing offers a label-free tool for collecting structural information. This study developed a reliable method to convert a silicon nitride nanopore into a stable nanonet platform for single-entity sensing. The nanonet provides more structural information and captures the UV-light-induced structural-change process of individual proteins.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Rajamallu Karre, Dezhou Guo, Shuangxi Song, Yixuan Hu, Yu Liu, Qiang Guo, Pan Liu, Xiaodong Wang, Qi An, Kolan Madhav Reddy
Summary: Vacancies play a crucial role in the mechanical properties of ceramics. In hexagonal silicon nitride, intrinsic point defects trigger shear bands, which are mediated by nitrogen defects during pure shear deformation, indicating the importance of understanding vacancy-driven failure mechanisms for ceramic materials.
SCRIPTA MATERIALIA
(2021)
Article
Chemistry, Physical
Tien T. Le, Ziv Hameiri, Thien N. Truong, Zhongshu Yang, Daniel Macdonald, AnYao Liu
Summary: This study investigates the gettering kinetics and mechanisms of silicon nitride films, showing that gettering mainly occurs via segregation, with different activation energies observed under different deposition conditions. The presence of an interfacial diffusion barrier is suggested in some cases, which slows down the transport of iron impurities to the gettering regions.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Ceramics
Serge Shamray, Bahman Azarhoushang, Masih Paknejad, Andreas Buechler
Summary: Ductile grinding of brittle materials is crucial for high precision applications and maintaining the strength and lifespan of parts. This study focuses on the ductile microgrinding of Si3N4 as a brittle material, calculating and validating the critical and maximum uncut chip thicknesses to guide achieving ductile grinding mode. The experiments show that the material removal mechanism affects the surface integrity, with ductile removal mode being more advantageous for surface quality.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Biomedical
G. Pezzotti, F. Boschetto, E. Ohgitani, Y. Fujita, M. Shin-Ya, T. Adachi, T. Yamamoto, N. Kanamura, E. Marin, W. Zhu, I Nishimura, O. Mazda
Summary: The hydrolytic processes of silicon nitride have been shown to instantly inactivate the SARS-CoV-2 virus by inducing structural damage and inhibiting viral functionality and infectivity. This study provides evidence of the safety and effectiveness of silicon nitride as an antiviral compound, making it a promising candidate for replacing toxic and allergenic compounds in contact with the human body and in long-term environmental sanitation.
MATERIALS TODAY BIO
(2021)
Article
Multidisciplinary Sciences
Arslan Sajid Raja, Sophie Lange, Maxim Karpov, Kai Shi, Xin Fu, Raphael Behrendt, Daniel Cletheroe, Anton Lukashchuk, Istvan Haller, Fotini Karinou, Benn Thomsen, Krzysztof Jozwik, Junqiu Liu, Paolo Costa, Tobias Jan Kippenberg, Hitesh Ballani
Summary: Optical technologies play a crucial role in data center networks, with Si3N4 microcomb technology enhancing performance. Overcoming challenges in network scaling, the future direction is towards a more efficient and scalable wavelength-switched network.
NATURE COMMUNICATIONS
(2021)
Article
Physics, Applied
Elmira M. Baeva, Nadezhda A. Titova, Louis Veyrat, Benjamin Sacepe, Alexander Semenov, Gregory N. Goltsman, Anna Kardakova, Vadim S. Khrapai
Summary: The research findings indicate that in thin films on amorphous insulating substrates, the relationship between the Joule power P2D and electron temperature Te is influenced by the length of the amorphous insulating layer, showing a linear temperature dependence related to thermal conductivity.
PHYSICAL REVIEW APPLIED
(2021)
Article
Physics, Fluids & Plasmas
Steven Blaber, Miranda D. Louwerse, David A. Sivak
Summary: This passage discusses how micro- and nanoscale systems dissipate significant energy when driven by rapid changes in control parameters, and in the fast-protocol limit, protocols that minimize dissipation at fixed duration are universally a two-step process. Jump protocols could be utilized by molecular machines or thermodynamic computing to enhance energetic efficiency, and can be implemented in nonequilibrium free-energy estimation for accuracy improvement.
Article
Materials Science, Multidisciplinary
Ali K. Shargh, Gregory R. Madejski, James L. McGrath, Niaz Abdolrahim
Summary: In this study, the mechanical properties and atomistic deformation mechanisms of aNPN with different microstructural parameters were investigated using MD simulations and experiments. The results show that pore distribution is the key parameter controlling deformation mechanisms, while porosity and pore distribution impact the strength of aNPN. New insights for design of robust aNPN membranes in larger scale applications were obtained by comparing pore distributions of manufactured aNPN with MD simulations.
Article
Engineering, Electrical & Electronic
Yusheng Wang, Yu-Wei Lin, Janna Glaze, Gabrielle Davis Vukasin, Dongsuk D. Shin, Hyun-Keun Kwon, David B. Heinz, Yunhan Chen, Dustin D. Gerrard, Thomas W. Kenny, Andrei M. Shkel
Summary: This study experimentally quantified all major energy dissipation mechanisms in kilohertz-range silicon MEMS resonators, including viscous air damping, Thermo-Elastic Damping (TED), anchor loss, and surface loss. By implementing various control measures, the energy dissipation mechanisms were minimized and controlled effectively.
JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
(2021)
Article
Physics, Multidisciplinary
Haofan Yang, Jing Xu, Zhongfei Xiong, Xinda Lu, Ruo-Yang Zhang, Hanghang Li, Yuntian Chen, Shuang Zhang
Summary: The scattering immune propagation of light in topological photonic systems may revolutionize the design of integrated photonic circuits for information processing and communications. The spin-valley Hall effect (SVHE) is proposed as a way to expand topologically protected edge channels and enhance information multiplexing. An experimentally feasible platform based on coupled ring resonators mediated by optical Kerr nonlinearity is suggested to realize SVHE for light and achieve spin-valley photonics in optical communication systems.
PHYSICAL REVIEW LETTERS
(2021)
Article
Optics
The Anh Nguyen, Ming-Chang M. Lee
Summary: An ultra-thin Si-padded Si3N4 waveguide was proposed, with a very thin Si slab and a Si3N4 strip separated by a SiO2 layer. The measured waveguide propagation loss is low at 0.055 dB/cm, and the bending loss is within an acceptable range. Part of the waveguide mode is distributed in the Si slab, showing potential for low-loss and high-speed photonic integrated circuits.
Article
Optics
Zhiqiang Yang, Meixun Wen, Lei Wan, Tianhua Feng, Wenfeng Zhou, Dong Liu, Siqing Zeng, Shuixian Yang, Zhaohui Li
Summary: This Letter presents the development of a thin-film lithium niobate-chalcogenide based acousto-optic modulator, where an interdigital transducer and a chalcogenide strip waveguide are integrated on a thin-film lithium niobate substrate. The modulator exhibits high quality factor and demonstrates excellent performance.
Article
Physics, Applied
H. Ramp, T. J. Clark, B. D. Hauer, C. Doolin, K. C. Balram, K. Srinivasan, J. P. Davis
APPLIED PHYSICS LETTERS
(2020)
Article
Physics, Applied
A. Tretiakov, C. A. Potts, T. S. Lee, M. J. Thiessen, J. P. Davis, L. J. LeBlanc
APPLIED PHYSICS LETTERS
(2020)
Article
Physics, Applied
C. A. Potts, V. A. S. V. Bittencourt, S. Viola Kusminskiy, J. P. Davis
PHYSICAL REVIEW APPLIED
(2020)
Article
Physics, Applied
C. A. Potts, J. P. Davis
APPLIED PHYSICS LETTERS
(2020)
Article
Physics, Multidisciplinary
E. Varga, V. Vadakkumbatt, A. J. Shook, P. H. Kim, J. P. Davis
PHYSICAL REVIEW LETTERS
(2020)
Article
Physics, Multidisciplinary
C. A. Potts, E. Varga, V. A. S. V. Bittencourt, S. Viola Kusminskiy, J. P. Davis
Summary: Dynamical backaction from radiation pressure in optomechanical systems can manipulate mechanical vibrations, such as cooling resonators, driving phonon lasing, generating entangled states, and observing the optical-spring effect. In some magnetic materials, magnon-induced dynamical backaction interacts with mechanical vibrations. These effects may play a crucial role in future experimental work.
Article
Physics, Multidisciplinary
E. Varga, J. P. Davis
Summary: In this study, an electromechanical coupling to pure superflow in a nanofluidic Helmholtz resonator is presented, allowing for simultaneous measurement of displacement and velocity of the Helmholtz mechanical mode driven by environmental noise. Feedback control is implemented to induce self-oscillation of the non-classical acoustic mode, dampen motion below ambient level, and adjust mode frequency.
NEW JOURNAL OF PHYSICS
(2021)
Article
Physics, Multidisciplinary
Myles Ruether, Clinton A. Potts, John P. Davis, Lindsay J. LeBlanc
Summary: The study focuses on the mode changes and energy dissipation of microwave cavities filled with different polymers, aiming to improve understanding and application of microwave cavity design.
JOURNAL OF PHYSICS COMMUNICATIONS
(2021)
Article
Physics, Multidisciplinary
E. Varga, C. Undershute, J. P. Davis
Summary: This study investigates He II confined in nanometer-scale channels using a nanofluidic Helmholtz resonator. The results show that the superfluid density is suppressed in the confined geometry, which can be explained by rotonlike thermal excitations with an energy gap of 5 K. Additionally, the study reveals the surface-bound excitations causing the lack of finite-size scaling of the suppression of the superfluid density.
PHYSICAL REVIEW LETTERS
(2022)
Article
Materials Science, Multidisciplinary
V. A. S. V. Bittencourt, C. A. Potts, Y. Huang, J. P. Davis, S. Viola Kusminskiy
Summary: The radiation pressurelike coupling between magnons and phonons in magnets can modify the phonon frequency and decay rate. In a recent experiment, the coupling of the uniform magnon mode to a microwave cavity was demonstrated, but deviations from the predicted decay rate were observed. In this work, corrections due to magnetic Kerr nonlinearities and the coupling of phonons to additional magnon modes were considered, and excellent agreement with experimental data was obtained.
Article
Materials Science, Multidisciplinary
C. A. Potts, Y. Huang, V. A. S. V. Bittencourt, Silvia Viola Kusminskiy, J. P. Davis
Summary: We demonstrate a triple-resonance cavity magnomechanical measurement that fully evades dynamical backaction effects. Through careful engineering, the magnomechanical scattering rate into the hybrid magnon-photon modes can be precisely matched, eliminating dynamical backaction damping. Backaction evasion is confirmed via the measurement of a drive-power-independent mechanical linewidth.
Article
Physics, Multidisciplinary
Sudeep Adhikari, K. S. D. Beach
Summary: The thermal activation process is a common phenomenon in physics, chemistry, and biology. This study investigates the biased activated-barrier-crossing process under the influence of external force and identifies the existence of universal behavior. Data collapse on a universal curve is demonstrated for simulated data with different energy landscapes and loading rates.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Astronomy & Astrophysics
V. Vadakkumbatt, M. Hirschel, J. Manley, T. J. Clark, S. Singh, J. P. Davis
Summary: This study explores a novel method for gravitational wave detection using a cross-shaped cavity filled with superfluid He-4, achieving improved sensitivity by tuning mechanical resonance frequencies and pressurizing the helium. The proposed architecture shows promise for detecting gravitational waves in the 1-30 kHz range with potential applications to various astrophysical sources.
Article
Materials Science, Multidisciplinary
M. J. Rudd, P. Senarath Yapa, A. J. Shook, J. Maciejko, J. P. Davis
Summary: The study reveals that the formation of domain walls in superfluid He-3-B is generally energetically favored in strong coupling, with decreasing interface energy as temperature and pressure increase. This has important implications for the subsequent formation of spatially-modulated pair-density wave states.
Article
Materials Science, Multidisciplinary
Khagendra Adhikari, K. S. D. Beach
Summary: The dynamical behavior of a quantum many-particle system is characterized by the lifetime of its excitations. The Fredkin model, a quantum spin chain with a three-body interaction term, exhibits an unusually large dynamical exponent z, which has been estimated to be approximately 3.16(1) through direct simulation of the quantum evolution. The slow dynamics in this system is explained in terms of an excited bond that executes a constrained random walk in Monte Carlo time.
