Critical adsorption and Casimir torque in wedges and at ridges

Details Critical adsorption and Casimir torque in wedges and at ridges Critical adsorption and Casimir torque in wedges and at ridges

2004-04-29

arxiv.org/abs/cond-mat/0404707v1

Physics

Condensed Matter

Statistical Mechanics

16 pages, 15 figures, submitted to PRE

Scientific paper

10.1103/PhysRevE.70.046114

Geometrical structures of confining surfaces profoundly influence the adsorption of fluids upon approaching a critical point T_c in their bulk phase diagram, i.e., for t=(T-T_c)/T_c -> +/-0. Guided by general scaling considerations, we calculate, within mean-field theory, the temperature dependence of the order parameter profile in a wedge with opening angle gammapi) for T>T_c and T +/-0)~Gamma_\pm(gamma)|t|^{beta-2nu} we compute the universal amplitudes Gamma_\pm(gamma), which diverge as Gamma_\pm(gamma ->0)~1/gamma for small opening angles, vary linearly close to gamma=pi for gamma 2pi. There is evidence that, within mean-field theory, the ratio Gamma_+(gamma)/Gamma_-(gamma) is independent of gamma. We also discuss the critical Casimir torque acting on the sides of the wedge as a function of the opening angle and temperature.

Affiliated with

Also associated with

No associations

Rating

Critical adsorption and Casimir torque in wedges and at ridges does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Critical adsorption and Casimir torque in wedges and at ridges, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Critical adsorption and Casimir torque in wedges and at ridges will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-567455