Article
Chemistry, Physical
Michio Tateno, Taiki Yanagishima, Hajime Tanaka
Summary: The study on colloidal gelation using core-shell fluorescent colloidal particles reveals that the enhancement of local packing and the formation of locally stable rigid structures are the key factors leading to gel formation during phase separation. These findings support a mechanical perspective on dynamic arrest of sticky-sphere systems based on microstructure, replacing conventional explanations based on macroscopic vitrification of colloidal-rich phase.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Physics, Multidisciplinary
Jordan L. Shivers, Abhinav Sharma, Fred C. Mackintosh
Summary: Networks and dense suspensions near the boundary between soft and rigid regimes undergo transitions driven by changes in structure, density, stress, or strain. In this study, we establish a simple quantitative relationship between nonaffinity and excess viscosity and demonstrate its rheological consequences in strained filament networks and dense suspensions. We also predict critical signatures in the rheology of semiflexible and stiff biopolymer networks near the strain stiffening transition.
PHYSICAL REVIEW LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Jiaxing Yuan, Michio Tateno, Hajime Tanaka
Summary: Phase separation is a fundamental phenomenon with important implications in nature, biology, material science, and industry. Viscoelastic phase separation can result in the formation of network structures, contrary to the common belief that only the minority phase forms droplets. The underlying microscopic mechanism of this behavior remains unknown, but our simulations suggest that self-generated viscoelastic stress and many-body hydrodynamic interactions play a crucial role.
Article
Chemistry, Physical
Geert Kapteijns, David Richard, Eran Bouchbinder, Thomas B. Schroder, Jeppe C. Dyre, Edan Lerner
Summary: This study proposes a potential factor controlling the viscous slowing down, the mesoscopic elastic stiffness κ(T), and finds it increases more strongly with decreasing temperature compared to the macroscopic inherent structure shear modulus G(T). Additionally, a direct connection between the liquid's underlying mesoscopic elasticity and enthalpic energy barriers is suggested by the relation ΔE(T) proportional to κ(T) in some computer liquids. However, this relation fails in liquids with highly fragmented potential energy landscapes.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Review
Materials Science, Multidisciplinary
Bingchao Qin, Dongyang Wang, Li-Dong Zhao
Summary: This study reviews the applications of heat transport in solid materials and outlines key strategies for enhancing thermoelectric performance by slowing down heat transport, including reducing thermal conductivity and introducing extrinsic phonon scattering centers.
Article
Chemistry, Physical
Marco Baiesi, Stefano Iubini, Enzo Orlandini
Summary: A mean-field kinetic model suggests that the relaxation dynamics of wormlike micellar networks is a long and complex process, with subtle end-recombination dynamics that may not be easily detected in rheology experiments. The relaxation time scale is exponential and related to the free energy of an end cap and branching free energy.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Multidisciplinary Sciences
Paul Brookes, Giovanna Tancredi, Andrew D. Patterson, Joseph Rahamim, Martina Esposito, Themistoklis K. Mavrogordatos, Peter J. Leek, Eran Ginossar, Marzena H. Szymanska
Summary: This study explores the rich quantum activation dynamics and critical slowing down in an engineered superconducting quantum circuit, specifically in the intermediate bistable regime of the generalized Jaynes-Cummings Hamiltonian. A previously unidentified regime of quantum activation with saturation of critical slowing down is found, shedding light on the fundamental role played by the qubit in this regime through comparison with experimental results and various models.
Article
Physics, Multidisciplinary
Chun-Yu Liu, Yun-Xuan Zhang, I Lin
Summary: We experimentally demonstrate the two-stage structural and slowing-down percolating transitions in dilute cancer cell monolayers and investigate their effects on collective cell dynamics. The increase in cell density leads to the formation of cell clusters and slower cell motion, while the crowding of cells in occupied regions further enhances the dynamical slowing-down.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Daniele Dragoni, Joerg Behler, Marco Bernasconi
Summary: Elemental antimony has been proposed as a promising material for phase change memories due to its improved performance compared to ternary chalcogenide alloys, with compositional simplification preventing reliability issues. The stability of amorphous phase in an ultrathin film of antimony is attributed to nanoconfinement. Molecular dynamics simulations reveal the microscopic origins of this effect.
Article
Polymer Science
Tulika Sharma, Yoshiaki Nishio, Yuichiro Tamano, Harumi Sato, Isao Takahashi
Summary: This study investigated the effects of aging temperature on structural relaxation in ultrathin-supported polystyrene films, revealing anomalous thickness relaxation behaviors and a strong correlation with glass transition temperature values. The results suggest that the dynamics at the surface and mobility at the interface play crucial roles in the relaxation behavior of ultrathin films. The study also confirmed two distinct glass transition temperatures unique to ultrathin films.
Article
Polymer Science
Lili Zhang, Norman A. Fleck
Summary: Molecular dynamics simulations are used to study the thickness dependence of uniaxial and equi-biaxial tensile responses of ultrathin PMMA films, revealing that tensile failure strain decreases with decreasing film thickness, temperature, and molecular weight, while side-branching plays a secondary role.
Article
Materials Science, Multidisciplinary
N. Higa, T. U. Ito, M. Yogi, T. Hattori, H. Sakai, S. Kambe, Z. Guguchia, W. Higemoto, M. Nakashima, Y. Homma, A. Nakamura, F. Honda, Y. Shimizu, D. Aoki, M. Kakihana, M. Hedo, T. Nakama, Y. Onuki, Y. Tokunaga
Summary: The compound EuPtSi undergoes a helimagnetic transition at 4K, hosting a unique skyrmion phase with a short modulation period and strong anisotropy under magnetic fields. Characteristic spin dynamics were observed in a wide temperature and magnetic field range, indicating the presence of magnetic frustration in the spin system. This frustration likely underlies the mechanism stabilizing the short-period skyrmion lattice in this compound.
Article
Environmental Sciences
Alessandro Ielpi, Mathieu G. A. Lapotre, Alvise Finotello, Pascale Roy-Leveillee
Summary: Climate warming has stabilized large Arctic sinuous rivers by slowing their lateral migration by about 20% over the past 50 years, as shown by satellite data. This is likely due to indirect effects driven by atmospheric warming, such as permafrost thaw and decline in overland flow along channel banks. The decreased migration rates could have significant impacts on sediment and organic matter residence timescales in floodplains, affecting watershed-scale carbon budgets and climate feedbacks.
NATURE CLIMATE CHANGE
(2023)
Article
Polymer Science
Joanna Giermanska, Soumaya Ben Jabrallah, Nicolas Delorme, Guillaume Vignaud, Jean-Paul Chapel
Summary: In this study, the variation of mass density of polymer thin films was investigated, showing an increase for PS and a decrease for PMMA films as thickness was reduced. Additionally, the coefficient of thermal expansion was measured to rationalize the inconsistency with the depression/rise of Tg, revealing a clear correlation between glass transition temperature, coefficient of thermal expansion, and free volume of the polymer.
Article
Physics, Applied
Jan David Brehm, Richard Gebauer, Alexander Stehli, Alexander N. N. Poddubny, Oliver Sander, Hannes Rotzinger, Alexey V. V. Ustinov
Summary: This article introduces the research on slowing down the speed of electromagnetic waves using superconducting metamaterials. By coupling multiple qubits to a common waveguide, researchers have achieved the phenomenon of slowing down electromagnetic waves and demonstrated two methods to achieve electromagnetic wave deceleration, one of which utilizes finely modulated states based on Autler-Townes splitting.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Physical
Qiyun Tang, Alan R. Denton
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2015)
Article
Physics, Multidisciplinary
Q. Tang, J. Tang, M. Mueller
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
(2016)
Article
Chemistry, Physical
Alan R. Denton, Qiyun Tang
JOURNAL OF CHEMICAL PHYSICS
(2016)
Article
Thermodynamics
Duenpen Kalapat, Qiyun Tang, Xiaohong Zhang, Wenbing Hu
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2017)
Article
Chemistry, Physical
Qiyun Tang, Paula C. Angelome, Galo J. A. A. Soler-Illia, Marcus Mueller
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2017)
Article
Chemistry, Physical
Christian Rossner, Qiyun Tang, Marcus Mueller, Gerald Kothleitner
Article
Chemistry, Physical
Qiyun Tang, Alan R. Denton
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2014)
Article
Multidisciplinary Sciences
Hao Qi, Hao Zhou, Qiyun Tang, Jee Young Lee, Zhiyuan Fan, Seyong Kim, Mark C. Staub, Tian Zhou, Shan Mei, Lin Han, Darrin J. Pochan, Hao Cheng, Wenbing Hu, Christopher Y. Li
NATURE COMMUNICATIONS
(2018)
Article
Chemistry, Physical
Naoki Tarutani, Yasuaki Tokudome, Matias Jobbagy, Galo J. A. A. Soler-Ilia, Qiyun Tang, Marcus Mueller, Masahide Takahashi
CHEMISTRY OF MATERIALS
(2019)
Article
Physics, Multidisciplinary
Qiyun Tang, Marcus Mueller, Christopher Y. Li, Wenbing Hu
PHYSICAL REVIEW LETTERS
(2019)
Article
Biochemistry & Molecular Biology
Qiyun Tang, Christian Rossner, Philipp Vana, Marcus Muller
Article
Chemistry, Multidisciplinary
Huan Liu, Bo Pang, Qiyun Tang, Marcus Mueller, Hua Zhang, Riza Dervisoglu, Kai Zhang
Article
Physics, Multidisciplinary
Qiyun Tang, Marcus Mueller
Summary: Numerical calculations demonstrate an anomalous liquid expansion when quenching a binary mixture to low pressures in the vapor phase. This evaporation-induced expansion is attributed to pressure imbalance near the liquid-vapor interface, influenced by the complex thermodynamics and dynamic asymmetries of binary mixtures. Careful modulation of pressure quench in the vapor phase can induce spinodal bubble formation inside the liquid phase.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Christian Rossner, Qiyun Tang, Otto Glatter, Marcus Mueller, Philipp Vana
