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Title: Similarity of capacitive radio-frequency discharges in nonlocal regimes

Abstract

Similarity transformations are essential for correlating discharges at different scales, which are mostly utilized with local field or local energy approximations. In this work, we report the fully kinetic results from particle-in-cell/Monte Carlo collision simulations that unambiguously demonstrate the similarity of radio frequency (rf) discharges in nonlocal regimes where the electron energy relaxation length is much larger than the gap dimension. It is found that at a constant rf voltage amplitude, discharges will be similar if the gas pressure, inverse of gap distance, and rf driving frequency are all changed by the same scaling factor. The scaling relations of fundamental parameters are illustrated for rf discharges in the alpha-mode with secondary electron emission ignored, and the temporal electron kinetics are shown to have invariance in similar discharges. The results explicitly validate the scaling laws in nonlocal kinetic regimes, indicating promising application potentials of the similarity transformations across a wide range of kinetic regimes.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [1]; ORCiD logo [5]
  1. Michigan State Univ., East Lansing, MI (United States). Dept. of Computational Mathematics, Science and Engineering; Michigan State Univ., East Lansing, MI (United States). Dept. of Electrical and Computer Engineering
  2. Michigan State Univ., East Lansing, MI (United States). Dept. of Electrical and Computer Engineering; Michigan State Univ., East Lansing, MI (United States). Fraunhofer Center for Coatings and Diamond Technologies
  3. Michigan State Univ., East Lansing, MI (United States). Dept. of Electrical and Computer Engineering
  4. Michigan State Univ., East Lansing, MI (United States). Dept. of Electrical and Computer Engineering; Michigan State Univ., East Lansing, MI (United States). Fraunhofer Center for Coatings and Diamond Technologies; Michigan State Univ., East Lansing, MI (United States). Dept. of Chemical Engineering and Material Science
  5. Tsinghua Univ., Beijing (China). Dept. of Electrical Engineering
Publication Date:
Research Org.:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE Office of Science (SC); US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF); National Natural Science Foundation of China (NSFC)
OSTI Identifier:
1850769
Alternate Identifier(s):
OSTI ID: 1698046
Grant/Contract Number:  
SC0001939; FA9550-18-1-0062; FA9550-18-1-0061; 1917577; 1724941; 51777114
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 27; Journal Issue: 11; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Physics; electron energy distribution functions; gas discharges; radiofrequency discharges; stochastic processes; electron impact ionization; electrical properties and parameters; particle-in-cell method; plasma dynamics

Citation Formats

Fu, Yangyang, Zheng, Bocong, Zhang, Peng, Fan, Qi Hua, Verboncoeur, John P., and Wang, Xinxin. Similarity of capacitive radio-frequency discharges in nonlocal regimes. United States: N. p., 2020. Web. doi:10.1063/5.0022788.
Fu, Yangyang, Zheng, Bocong, Zhang, Peng, Fan, Qi Hua, Verboncoeur, John P., & Wang, Xinxin. Similarity of capacitive radio-frequency discharges in nonlocal regimes. United States. https://doi.org/10.1063/5.0022788
Fu, Yangyang, Zheng, Bocong, Zhang, Peng, Fan, Qi Hua, Verboncoeur, John P., and Wang, Xinxin. Mon . "Similarity of capacitive radio-frequency discharges in nonlocal regimes". United States. https://doi.org/10.1063/5.0022788. https://www.osti.gov/servlets/purl/1850769.
@article{osti_1850769,
title = {Similarity of capacitive radio-frequency discharges in nonlocal regimes},
author = {Fu, Yangyang and Zheng, Bocong and Zhang, Peng and Fan, Qi Hua and Verboncoeur, John P. and Wang, Xinxin},
abstractNote = {Similarity transformations are essential for correlating discharges at different scales, which are mostly utilized with local field or local energy approximations. In this work, we report the fully kinetic results from particle-in-cell/Monte Carlo collision simulations that unambiguously demonstrate the similarity of radio frequency (rf) discharges in nonlocal regimes where the electron energy relaxation length is much larger than the gap dimension. It is found that at a constant rf voltage amplitude, discharges will be similar if the gas pressure, inverse of gap distance, and rf driving frequency are all changed by the same scaling factor. The scaling relations of fundamental parameters are illustrated for rf discharges in the alpha-mode with secondary electron emission ignored, and the temporal electron kinetics are shown to have invariance in similar discharges. The results explicitly validate the scaling laws in nonlocal kinetic regimes, indicating promising application potentials of the similarity transformations across a wide range of kinetic regimes.},
doi = {10.1063/5.0022788},
journal = {Physics of Plasmas},
number = 11,
volume = 27,
place = {United States},
year = {Mon Nov 02 00:00:00 EST 2020},
month = {Mon Nov 02 00:00:00 EST 2020}
}

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Ju.</span> </li> <li> Physics Letters A, Vol. 126, Issue 5-6</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1016/0375-9601(88)90846-8" class="text-muted" target="_blank" rel="noopener noreferrer">10.1016/0375-9601(88)90846-8<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.3367/UFNe.0180.201002b.0139" target="_blank" rel="noopener noreferrer" class="name">Nonlocal electron kinetics in gas-discharge plasma<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2010-05-11">May 2010</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Tsendin, Lev D.</span> </li> <li> Physics-Uspekhi, Vol. 53, Issue 2</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.3367/UFNe.0180.201002b.0139" class="text-muted" target="_blank" rel="noopener noreferrer">10.3367/UFNe.0180.201002b.0139<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1088/1361-6595/aacc0c" target="_blank" rel="noopener noreferrer" class="name">Monte Carlo modeling of radio-frequency breakdown in argon<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2018-07-01">July 2018</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Puač, Marija; Marić, Dragana; Radmilović-Radjenović, Marija</span> </li> <li> Plasma Sources Science and Technology, Vol. 27, Issue 7</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1088/1361-6595/aacc0c" class="text-muted" target="_blank" rel="noopener noreferrer">10.1088/1361-6595/aacc0c<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1016/0010-4655(94)00171-W" target="_blank" rel="noopener noreferrer" class="name">A Monte Carlo collision model for the particle-in-cell method: applications to argon and oxygen discharges<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="1995-05-01">May 1995</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Vahedi, V.; Surendra, M.</span> </li> <li> Computer Physics Communications, Vol. 87, Issue 1-2</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1016/0010-4655(94)00171-W" class="text-muted" target="_blank" rel="noopener noreferrer">10.1016/0010-4655(94)00171-W<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1259/jrs.1915.0049" target="_blank" rel="noopener noreferrer" class="name">Electricity in Gases<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="1915-07-01">July 1915</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Townsend, J. S.</span> </li> <li> Journal of the Röntgen Society, Vol. 11, Issue 44</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1259/jrs.1915.0049" class="text-muted" target="_blank" rel="noopener noreferrer">10.1259/jrs.1915.0049<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> <div> <h2 class="title" style="margin-bottom:0;" data-apporder=""> <a href="https://doi.org/10.1088/0963-0252/15/4/015" target="_blank" rel="noopener noreferrer" class="name">The validity of the general similarity law for electrical breakdown of gases<span class="fa fa-external-link" aria-hidden="true"></span></a> <small class="text-muted" style="text-transform:uppercase; font-size:0.75rem;"><br/> <span class="type">journal</span>, <span class="date" data-date="2006-08-18">August 2006</span></small> </h2> <ul class="small references-list" style="list-style-type:none; margin-top: 0.5em; padding-left: 0; line-height:1.8em;"> <li> <span style="color:#5C7B2D;"> Osmokrović, Predrag; Živić, Tamara; Lončar, Boris</span> </li> <li> Plasma Sources Science and Technology, Vol. 15, Issue 4</li> <li> <span class="text-muted related-url">DOI: <a href="https://doi.org/10.1088/0963-0252/15/4/015" class="text-muted" target="_blank" rel="noopener noreferrer">10.1088/0963-0252/15/4/015<span class="fa fa-external-link" aria-hidden="true"></span></a></span> </li> </ul> <hr/> </div> </div> <div class="pagination-container small"> <a class="pure-button prev page" href="#" rel="prev"><span class="sr-only">Previous Page</span><span class="fa fa-angle-left"></span></a> <ul class="pagination d-inline-block" style="padding-left:.2em;"></ul> <a class="pure-button next page" href="#" rel="next"><span class="sr-only">Next Page</span><span class="fa fa-angle-right"></span></a> </div> </div> </div> <div class="col-sm-3 order-sm-3"> <ul class="nav nav-stacked"> <li class="active"><a href="" class="reference-type-filter tab-nav" data-tab="biblio-references" data-filter="type" data-pattern="*"><span class="fa fa-angle-right"></span> All References</a></li> <li class="small" style="margin-left:.75em; 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list-style-type: none;"> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="0" /><div class="item-info"> <h2 class="title" itemprop="name headline"><a href="/pages/biblio/1850771-similarity-law-frequency-scaling-low-pressure-capacitive-radio-frequency-plasmas" itemprop="url">Similarity law and frequency scaling in low-pressure capacitive radio frequency plasmas</a></h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Journal Article</small><span class="authors"> <span class="author">Fu, Yangyang</span> ; <span class="author">Zheng, Bocong</span> ; <span class="author">Wen, De-Qi</span> ; <span class="author">...</span> <span class="text-muted pubdata"> - Applied Physics Letters</span> </span> </div> <div class="abstract">We verify the similarity law (SL) and show a violation of frequency scaling (f-scaling) in low-pressure capacitive radio frequency (rf) plasmas via fully kinetic particle-in-cell simulations. The SL scaling relations for electron density and electron power absorption are first confirmed in similar rf discharges. Based on these results, with only the driving frequency varied, the f-scaling for electron density is also validated, showing almost the same trend as the SL scaling, across most of the frequency regime. However, violations of the f-scaling are observed at lower frequencies, which are found to be relevant to the electron heating mode transition from<a href='#' onclick='$(this).hide().next().show().next().show();return false;' style='margin-left:10px;'>more »</a><span style='display:none;'> stochastic to Ohmic heating. Electron kinetic invariance is illustrated for the SL and f-scaling being valid, respectively, whereas the electron kinetic variation is observed when the f-scaling is violated.</span><a href='#' onclick='$(this).hide().prev().hide().prev().show();return false;' style='margin-left:10px;display:none;'>« less</a></div><div class="metadata-links small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc doi-link " href="https://doi.org/10.1063/5.0029518" target="_blank" rel="noopener" title="Link to document DOI" data-ostiid="1850771" data-product-type="Journal Article" data-product-subtype="AM" >https://doi.org/10.1063/5.0029518</a></span></li> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link " href="/pages/servlets/purl/1850771" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1850771" data-product-type="Journal Article" data-product-subtype="AM" >Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="1" /><div class="item-info"> <h2 class="title" itemprop="name headline"><a href="/pages/biblio/1979636-generalizing-similarity-laws-radio-frequency-discharge-plasmas-across-nonlinear-transition-regimes" itemprop="url">Generalizing Similarity Laws for Radio-Frequency Discharge Plasmas across Nonlinear Transition Regimes</a></h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Journal Article</small><span class="authors"> <span class="author">Fu, Yangyang</span> ; <span class="author">Wang, Huihui</span> ; <span class="author">Zheng, Bocong</span> ; <span class="author">...</span> <span class="text-muted pubdata"> - Physical Review Applied</span> </span> </div> <div class="abstract">We generalize similarity theory based on the scaling and solution invariance of the Boltzmann equation, coupled with the Poisson equation, and demonstrate similarity laws for radio-frequency (rf) discharge plasmas across three nonlinear transitional regimes, namely, the alpha-gamma mode transition, the stochastic-Ohmic-heating mode transition, and the bounce-resonance-heating mode transition. Fundamental plasma parameters, e.g., the electron power absorption, under similar discharge conditions are examined via fully kinetic particle-in-cell simulations, and electron-kinetic invariance is exemplified in similar rf discharge plasmas. The results unambiguously confirm the applicability of similarity laws for rf plasmas in extended operating regimes, and strengthen the foundations and framework of<a href='#' onclick='$(this).hide().next().show().next().show();return false;' style='margin-left:10px;'>more »</a><span style='display:none;'> similarity physics with universality.</span><a href='#' onclick='$(this).hide().prev().hide().prev().show();return false;' style='margin-left:10px;display:none;'>« less</a></div><div class="metadata-links small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc doi-link " href="https://doi.org/10.1103/physrevapplied.16.054016" target="_blank" rel="noopener" title="Link to document DOI" data-ostiid="1979636" data-product-type="Journal Article" data-product-subtype="AM" >https://doi.org/10.1103/physrevapplied.16.054016</a></span></li> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link " href="/pages/servlets/purl/1979636" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1979636" data-product-type="Journal Article" data-product-subtype="AM" >Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="3" /><div class="item-info"> <h2 class="title" itemprop="name headline"><a href="/pages/biblio/1850774-direct-current-microplasma-formation-around-microstructure-arrays" itemprop="url">Direct current microplasma formation around microstructure arrays</a></h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Journal Article</small><span class="authors"> <span class="author">Fu, Yangyang</span> ; <span class="author">Wang, Huihui</span> ; <span class="author">Zheng, Bocong</span> ; <span class="author">...</span> <span class="text-muted pubdata"> - Applied Physics Letters</span> </span> </div> <div class="abstract">We demonstrate the formation and transition behaviors of a microplasma around microstructure arrays at different gas pressures via two-dimensional particle-in-cell/Monte Carlo collision simulations. It is found that the microdischarge occurs outside the cathode microcavities at the lowest pressure and starts penetrating the microcavities with a curved sheath edge as the pressure increases. At higher pressure, coupled periodic microhollow cathode discharges (MHCDs) are formed inside the microcavities. Further increasing the gas pressure results in the disappearance of the MHCDs, and the dominant discharge shifts outside of the microcavity, locating above the protrusion tips. The effect of the space charge shielding on<a href='#' onclick='$(this).hide().next().show().next().show();return false;' style='margin-left:10px;'>more »</a><span style='display:none;'> the discharge and the conditions for MHCD formation are discussed. The macroscopic discharge parameter scalings with the gas pressure and the electron kinetics are also examined. The results are helpful for deeply understanding the microplasma formation with nonplanar electrodes, which inform the scaling, design, and optimization of microplasma array devices across a wide range of pressure regimes in practical applications.</span><a href='#' onclick='$(this).hide().prev().hide().prev().show();return false;' style='margin-left:10px;display:none;'>« less</a></div><div class="metadata-links small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc doi-link " href="https://doi.org/10.1063/5.0046312" target="_blank" rel="noopener" title="Link to document DOI" data-ostiid="1850774" data-product-type="Journal Article" data-product-subtype="AM" >https://doi.org/10.1063/5.0046312</a></span></li> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link " href="/pages/servlets/purl/1850774" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1850774" data-product-type="Journal Article" data-product-subtype="AM" >Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="4" /><div class="item-info"> <h2 class="title" itemprop="name headline"><a href="/pages/biblio/1850773-transition-characteristics-electron-kinetics-microhollow-cathode-discharges" itemprop="url">Transition characteristics and electron kinetics in microhollow cathode discharges</a></h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Journal Article</small><span class="authors"> <span class="author">Fu, Yangyang</span> ; <span class="author">Zheng, Bocong</span> ; <span class="author">Zhang, Peng</span> ; <span class="author">...</span> <span class="text-muted pubdata"> - Journal of Applied Physics</span> </span> </div> <div class="abstract">We demonstrate the transition characteristics and electron kinetics of microdischarges in a microgap with a cathode having microstructures using two-dimensional particle-in-cell/Monte Carlo collision (2d3v) simulations. It is found that the microdischarge is inside the hollow cavity at lower pressures, forming microhollow cathode discharges (MHCDs), while the dominant discharge moves outside the cavity at higher pressures, locating above the cathode rectangular protrusion tip. The spatial distributions of the microdischarge parameters (e.g., electric potential and electron density) are presented by capturing the transition characteristics. The electron kinetics of the microdischarges are examined based on the moment analysis of the electron Boltzmann equation.<a href='#' onclick='$(this).hide().next().show().next().show();return false;' style='margin-left:10px;'>more »</a><span style='display:none;'> The collisional and non-collisional components of the electron power absorption are decomposed, which were seldomly investigated for microdischarges previously. The results provide fundamental insights into MHCD formation with a structured electrode at varying pressure conditions, which could be beneficial for the design and fabrication of microplasma devices in practical applications.</span><a href='#' onclick='$(this).hide().prev().hide().prev().show();return false;' style='margin-left:10px;display:none;'>« less</a></div><div class="metadata-links small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc doi-link " href="https://doi.org/10.1063/5.0033282" target="_blank" rel="noopener" title="Link to document DOI" data-ostiid="1850773" data-product-type="Journal Article" data-product-subtype="AM" >https://doi.org/10.1063/5.0033282</a></span></li> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link " href="/pages/servlets/purl/1850773" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1850773" data-product-type="Journal Article" data-product-subtype="AM" >Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> <li> <div class="article item document" itemprop="itemListElement" itemscope itemtype="http://schema.org/WebPage"><meta itemprop="position" content="5" /><div class="item-info"> <h2 class="title" itemprop="name headline"><a href="/pages/biblio/1850770-comparison-particle-cell-simulations-dc-magnetron-sputtering-discharges" itemprop="url">Comparison of 1D and 2D particle-in-cell simulations for DC magnetron sputtering discharges</a></h2> <div class="metadata"> <small class="text-muted" style="text-transform:uppercase;display:block;line-height:2.5em;">Journal Article</small><span class="authors"> <span class="author">Zheng, Bocong</span> ; <span class="author">Fu, Yangyang</span> ; <span class="author">Wang, Keliang</span> ; <span class="author">...</span> <span class="text-muted pubdata"> - Physics of Plasmas</span> </span> </div> <div class="abstract">One-dimensional and two-dimensional particle-in-cell (PIC)/Monte Carlo collision simulations are performed for a balanced direct current magnetron sputtering (DCMS) discharge. The plasma parameters obtained by both simulations above the target racetrack share similar features and magnitudes under similar discharge intensities, i.e., similar local discharge current densities. The commonly observed high-energy tail of electron energy distribution in DCMS discharges is reproduced in both simulations. Additionally, the accuracy and applicability of using onedimensional simulations to qualitatively investigate the characteristics of balanced DCMS discharge are confirmed. In terms of capturing the key physical mechanisms in DCMS, one-dimensional PIC simulation is an efficient method, which<a href='#' onclick='$(this).hide().next().show().next().show();return false;' style='margin-left:10px;'>more »</a><span style='display:none;'> could largely alleviate the computational expense and preserve the physical fidelity of modeling results.</span><a href='#' onclick='$(this).hide().prev().hide().prev().show();return false;' style='margin-left:10px;display:none;'>« less</a></div><div class="metadata-links small clearfix text-muted" style="margin-top:15px;"> <div class="pure-menu pure-menu-horizontal pull-right" style="width:unset;"> <ul class="pure-menu-list"> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc doi-link " href="https://doi.org/10.1063/5.0029353" target="_blank" rel="noopener" title="Link to document DOI" data-ostiid="1850770" data-product-type="Journal Article" data-product-subtype="AM" >https://doi.org/10.1063/5.0029353</a></span></li> <li class="pure-menu-item"><span class="item-info-ftlink"><a class="misc fulltext-link " href="/pages/servlets/purl/1850770" title="Link to document media" target="_blank" rel="noopener" data-ostiid="1850770" data-product-type="Journal Article" data-product-subtype="AM" >Full Text Available</a></span></li> </ul> </div> </div> </div> <div class="clearfix"></div> </div> </li> </ul> </aside> </div> </section> </div> <div class="col-sm-3 order-sm-3"> <ul class="nav nav-stacked"> <li class="active"><a class="tab-nav disabled" data-tab="related" style="color: #636c72 !important; 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