Domain wall depinning in random media by ac fields. Academic Article

abstract

• The viscous motion of an interface driven by an ac external field of frequency omega(0) in a random medium is considered here in the nonadiabatic regime. The velocity exhibits a smeared depinning transition showing a double hysteresis which is absent in the adiabatic case omega(0)-->0. Using scaling arguments and an approximate renormalization group calculation we explain the main characteristics of the hysteresis loop. In the low frequency limit these can be expressed in terms of the depinning threshold and the critical exponents of the adiabatic case.

authors

• Pokrovsky, Valery

published proceedings

• Phys Rev Lett

author list (cited authors)

• Glatz, A., Nattermann, T., & Pokrovsky, V.

citation count

• 43

complete list of authors

• Glatz, A||Nattermann, T||Pokrovsky, V

publication date

• January 2003

publisher

• American Physical Society (APS)  Publisher

published in

• Physical Review Letters  Journal

keywords

• 51 Physical Sciences
• 5103 Classical Physics

PubMed Central ID

• 12570452

Digital Object Identifier (DOI)

• 10.1103/PhysRevLett.90.047201

URI

• https://hdl.handle.net/1969.1/183008

start page

• 047201

end page

• 472014

volume

• 90

issue

• 4

URL

• http://dx.doi.org/10.1103/physrevlett.90.047201