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The thermodynamics of phase transitions between phases that are size-mismatched but coherent differs from conventional stress-free thermodynamics. Most notably, in open systems such phase transitions are always associated with hysteresis.…

材料科学 · 物理学 2022-04-26 J. Magnus Rahm , Joakim Löfgren , Paul Erhart

A time-dependent multi-temperature quenching model at atmospheric pressure, incorporating chemical and vibrational kinetics, is introduced. The model provides insights into the pathways of NOx formation and destruction in the downstream…

等离子体物理 · 物理学 2025-04-30 Q. Shen , A. Pikalev , F. J. J. Peeters , V. Guerra , M. C. M. van de Sanden

A two-dimensional fluid model is used to investigate the electron heating dynamics and the production of neutral species in a capacitively coupled radio-frequency micro atmospheric pressure helium plasma jet -- specifically the COST jet --…

等离子体物理 · 物理学 2021-05-26 Yue Liu , Ihor Korolov , Torben Hemke , Lena Bischoff , Gerrit Hübner , Julian Schulze , Thomas Mussenbrock

In many transition metal oxides the electrical resistance is observed to undergo dramatic changes induced by large biases. In magnetite, Fe$_3$O$_4$, below the Verwey temperature, an electric field driven transition to a state of lower…

强关联电子 · 物理学 2009-07-01 A. A. Fursina , R. G. S. Sofin , I. V. Shvets , D. Natelson

Hysteresis in cycling through first-order phase transitions in vortex matter, akin to the well-studied phenomenon of supercooling of water, has been discussed in literature. Hysteresis can be seen while varying either temperature T or…

超导电性 · 物理学 2016-08-31 P. Chaddah , S. B. Roy

We have studied 4 He confined in a 95% porosity silica aerogel in the vicinity of the bulk liquid gas critical point. Both thermodynamic measurements and light scattering experiments were performed to probe the effect of a quenched disorder…

Freeze-thaw cycles can be regularly observed in nature in water and are essential in industry and science. Objects present in the medium will interact with either an advancing solidification front during freezing or a retracting…

软凝聚态物质 · 物理学 2026-04-30 Wilfried Raffi , Jochem G. Meijer , Detlef Lohse

Using PCA data from the Rossi X-Ray Timing Explorer (RXTE), we track the spectral states of the neutron star transient system Aql X-1 through a complete outburst cycle. We find a hard-to-soft state transition during the very early, rising…

天体物理学 · 物理学 2009-11-07 Thomas J. Maccarone , Paolo S. Coppi

The phase transition into the ferroelectric phase in barium titanate occurs in many stages with the appearance of nonlinear phenomena. The mixed nature of the transition: displacive and order-disorder type, causes the occurrence of a…

材料科学 · 物理学 2024-10-18 Olga Mazur , Ken-ichi Tozaki , Leonid Stefanovich

We investigate the origin of the hysteresis observed in the transfer characteristics of back-gated field-effect transistors with an exfoliated MoS2 channel. We find that the hysteresis is strongly enhanced by increasing either gate voltage,…

介观与纳米尺度物理 · 物理学 2017-10-24 Antonio Di Bartolomeo , Luca Genovese , Filippo Giubileo , Laura Iemmo , Giuseppe Luongo , Tobias Foller , Marika Schleberger

Using a relaxation oscillator circuit, breakdown ($V_{\mathrm{BD}}$) and quench ($V_{\mathrm{Q}}$) voltages of a DC discharge microplasma between two needle probes are measured. High resolution modified Paschen curves are obtained for argon…

等离子体物理 · 物理学 2015-02-12 Ebrahim Forati , Shiva Piltan , Dan Sievenpiper

At ambient pressure CaFe2As2 has been found to undergo a first order phase transition from a high temperature, tetragonal phase to a low temperature orthorhombic / antiferromagnetic phase upon cooling through T ~ 170 K. With the application…

Thermophoresis is a tool often applied in complex plasma experiments. One of the usual stated benefits over other experimental tools is that changes induced by thermophoresis neither directly depend on, nor directly influence, the plasma…

等离子体物理 · 物理学 2015-05-20 Victor Land , Jorge Carmona-Reyes , James Creel , Jimmy Schmoke , Mike Cook , Lorin Matthews , Truell Hyde

A stochastic energetics framework is applied to examine how periodically shifting the frequency of a time-dependent oscillating temperature gradient affects heat transport in a nanoscale molecular model. We specifically examine the effects…

介观与纳米尺度物理 · 物理学 2025-01-23 Renai Chen , Galen T. Craven

We use simulations to examine hysteresis and noise in a model system that produces heterogeneous orderings including stripe and clump phases. In the presence of a disordered substrate, these heterogeneous phases exhibit 1/f$^\alpha$ noise…

强关联电子 · 物理学 2009-11-11 C. Reichhardt , C. J. Olson Reichhardt , A. R. Bishop

In plasmas where the thermal energy density exceeds the magnetic energy density ($\beta_\parallel > 1$), the aperiodic ordinary mode (O-mode) instability is driven by an excess of parallel temperature $A = T_\perp /T_\parallel < 1$ (where…

等离子体物理 · 物理学 2015-06-23 M. Lazar , R. Schlickeiser , S. Poedts , A. Stockem , S. Vafin

The majority of dynamical studies in power systems focus on the high voltage transmission grids where models consider large generators interacting with crude aggregations of individual small loads. However, new phenomena have been observed…

物理与社会 · 物理学 2015-06-12 Charlie Duclut , Scott Backhaus , Michael Chertkov

We investigate the evolution of the electroweak phase transition, using a one-Higgs effective potential that can be regarded as an approximation for the Minimal Supersymmetric Standard Model. The phase transition occurs in a small interval…

高能物理 - 唯象学 · 物理学 2009-10-31 Ariel Megevand

We examine hysteresis in cyclic voltammetry of Br electrosorption onto single-crystal Ag(100) by dynamic Monte Carlo simulations. At room temperature, this system displays a second-order phase transition from a low-coverage disordered phase…

材料科学 · 物理学 2007-05-23 S. J. Mitchell , G. Brown , P. A. Rikvold

In this Letter we study the phase transition between amorphous ices and the nature of the hysteresis cycle separating them. We discover that a topological transition takes place as the system transforms from low-density amorphous ice (LDA)…

无序系统与神经网络 · 物理学 2025-02-03 Yair Augusto Gutiérrez Fosado , Davide Michieletto , Fausto Martelli