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相关论文: Surface coupling effect on wetting and layering tr…

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Using Monte Carlo methods and finite-size scaling, we investigate surface criticality in the O$(n)$ models on the simple-cubic lattice with $n=1$, 2, and 3, i.e. the Ising, XY, and Heisenberg models. For the critical couplings we find…

统计力学 · 物理学 2009-11-11 Youjin Deng , Henk W. J. Blöte , M. P. Nightingale

Using extensive Monte Carlo simulations, we study the interface localization- delocalization transition of a thin Ising film with antisymmetric competing walls for a set of parameters where the transition is strongly first-order. This is…

统计力学 · 物理学 2009-11-10 B. J. Schulz , K. Binder , M. M"uller

We have studied the underlayer thickness and temperature dependences of the current induced effective field in CoFeB|MgO heterostructures with Ta based underlayers. The underlayer thickness at which the effective field saturates is found to…

Pinning interactions between superconducting vortices in Nb and magnetic Ni dots were studied as a function of current and temperature to clarify the nature of pinning mechanisms. A strong current dependence is found for a square array of…

超导电性 · 物理学 2009-10-31 J. I. Martin , M. Velez , A. Hoffmann , I. K. Schuller , J. L. Vicent

A quasi 2-dimensional recursive lattice formed by planar elements have been designed to investigate the surface thermodynamics of Ising spin glass system with the aim to study the metastability of supercooled liquids and the ideal glass…

统计力学 · 物理学 2015-02-24 Ran Huang , Purushottam D. Gujrati

The work analyzes the effect of a magnetic field $B$ directed along the $c$ axis ($B \parallel c$) up to 9~T on the resistivity $\rho(T)$, fluctuation conductivity (FLC) $\sigma'(T)$ and pseudogap $\Delta^*(T)$ in thin films of…

In this work, Monte Carlo simulation was implemented to study the phase diagrams and magnetic properties of a mixed spin (1-1/2-1) three-layer system with a cubic structure. In particular, the effects of the exchange and coupling parameters…

统计力学 · 物理学 2022-03-02 Maen Gharaibeh , Ahmad Al-Qawasmeh , Abdalla Obeidat , Sufian Abedrabbo

The decompositions of the skin-friction and heat transfer coefficients based on the two-fold repeated integration in hypersonic transitional and turbulent boundary layers are analyzed to explain the generations of the wall skin friction and…

流体动力学 · 物理学 2023-05-19 Dehao Xu , Jianchun Wang , Shiyi Chen

We study the shift of the the superconducting transition temperature $T_c$ in ferromagnetic-superconducting bi-layers and in a superconducting film supplied a square array of ferromagnetic dots. We find that the transition temperature in…

超导电性 · 物理学 2009-11-10 Valery L. Pokrovsky , Hongduo Wei

We determine the position and shape of the melting line in a layered superconductor taking the electromagnetic coupling between layers into account. In the limit of vanishing Josephson coupling we obtain a new generic reentrant low-field…

supr-con · 物理学 2009-10-28 Gianni Blatter , Vadim Geshkenbein , Anatoli Larkin , Henrik Nordborg

We study the effects of dilution to the critical properties of site-diluted Ising model in two dimensions using Monte Carlo simulations. Quenched disorder from the dilution is incorporated into the Ising model via random empty sites on the…

统计力学 · 物理学 2023-05-19 Eduardo C. Cuansing

The exchange coupling of two magnetic layers via a diffuse oxide interlayer is studied with an atomistic spin model. We investigate the effect of magnetic concentration and oxide layer thickness on the effective exchange coupling strength…

材料科学 · 物理学 2015-06-22 R. F. L. Evans , Q. Coopman , S. Devos , W. J. Fan , O. Hovorka , R. W. Chantrell

We report an experimental and theoretical study of the low-temperature specific heat $C$ and magnetic susceptibility $\chi$ of the layered anisotropic triangular-lattice spin-1/2 Heisenberg antiferromagnets Cs$_2$CuCl$_{4-x}$Br$_x$ with $x$…

In order to investigate the effects of connectivity and proximity in the specific heat, a special class of exactly solvable planar layered Ising models has been studied in the thermodynamic limit. The Ising models consist of repeated…

统计力学 · 物理学 2018-06-05 Helen Au-Yang , Jacques H. H. Perk

Alkanes of medium chain length show an unusual wetting behavior on (salt) water, exhibiting a sequence of two changes in the wetting state. When deposited on the water surface at low temperatures, the liquid alkane forms discrete droplets…

统计力学 · 物理学 2007-05-23 Volker C. Weiss , Joseph O. Indekeu

We investigate the dependence of the order parameter profile, local and total susceptibilities on both the temperature and external magnetic field within the mean-filed Ginzburg-Landau Ising type model. We study the case of a film geometry…

统计力学 · 物理学 2015-08-28 Daniel M. Dantchev , Vassil M. Vassilev , Peter A. Djondjorov

Transpiration cooling is an active thermal protection system of increasing interest in aerospace applications wherein a coolant is effused through a porous wall into a hot external flow. The present work focuses on the interaction between…

流体动力学 · 物理学 2024-08-12 Sophie Hillcoat , Jean-Pierre Hickey

Mode coupling theory (MCT) appears to explain several, though not all, aspects of the glass transition in colloids (particularly when short-range attractions are present). Developments of MCT, from rational foundations in statistical…

软凝聚态物质 · 物理学 2007-05-23 M. E. Cates , C. B. Holmes , M. Fuchs , O. Henrich

In a recent study we have found that for a large number of systems the configuration entropy at pair level, $S_{c2}$, which is primarily determined by the structural information, vanishes at the mode coupling transition temperature $T_{c}$.…

软凝聚态物质 · 物理学 2018-01-03 Manoj Kumar Nandi , Atreyee Banerjee , Chandan Dasgupta , Sarika Maitra Bhattacharyya

Sub-coercive field non-linearities in $0.5(\text{Ba}_{0.7}\text{Ca}_{0.3}\text{TiO}_{3})-0.5(\text{BaZr}_{0.2}\text{Ti}_{0.8}\text{O}_{3})$ (BCTZ 50/50) thin film elaborated using pulsed laser deposition are studied using permittivity and…