EFFECT OF FIELD DIRECTION AND FIELD INTENSITY ON DIRECTED SPIRAL PERCOLATION

Santanu Sinha and S. B. Santra ()
Additional contact information
Santanu Sinha: Department of Physics, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
S. B. Santra: Department of Physics, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India

International Journal of Modern Physics C (IJMPC), 2006, vol. 17, issue 09, 1285-1302

Abstract: Directed spiral percolation (DSP) is a new percolation model with crossed external bias fields. Since percolation is a model of disorder, the effect of external bias fields on the properties of disordered systems can be studied numerically using DSP. In DSP, the bias fields are an in-plane directional field(E)and a field of rotational nature(B)applied perpendicular to the plane of the lattice. The critical properties of DSP clusters are studied here varying the direction ofEfield and intensities of bothEandBfields in two-dimensions. The system shows interesting and unusual critical behavior at the percolation threshold. Not only the DSP model is found to belong in a new universality class compared to that of other percolation models but also the universality class remains invariant under the variation ofEfield direction. Varying the intensities of theEandBfields, a crossover from DSP to other percolation models has been studied. A phase diagram of the percolation models is obtained as a function of intensities of the bias fieldsEandB.

Keywords: Disordered systems; percolation; external bias fields; anisotropy; critical exponents; universality (search for similar items in EconPapers)
Date: 2006
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0129183106009072
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:ijmpcx:v:17:y:2006:i:09:n:s0129183106009072

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0129183106009072

Access Statistics for this article

International Journal of Modern Physics C (IJMPC) is currently edited by H. J. Herrmann

More articles in International Journal of Modern Physics C (IJMPC) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().