3 papers
cond-mat.mtrl-sci2008
Competing jump cycles for vacancy diffusion in binary alloys
Zerihun Getahun, Mesfin Asfaw, Mulugeta Bekele
The mean-first-passage-times (MFPTs) for a vacancy that diffuses (via one- and six-jump cycles) in a two dimensional ordered binary alloy are evaluated using the properties of rand…
cond-mat.soft2007
Unbinding transitions of multicomponent membranes and strings
Mesfin Asfaw
We present a theory of unbinding transitions for membranes that interact via short and long receptor/ligand bonds. The detail of unbinding behavior of the membranes is governed by…
cond-mat.stat-mech2002
An adjustable Brownian heat engine
Mesfin Asfaw, Mulugeta Bekele
A microscopic heat engine is modeled as a Brownian particle in a sawtooh potential (with load) moving through a highly viscous medium driven by the thermal kick it gets from altern…