Effects of the randomly distributed magnetic field on the phase diagrams of the Ising Nanowire II: Continuous distributions

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AKINCI Ü.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, cilt.324, sa.24, ss.4237-4244, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 324 Sayı: 24
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.jmmm.2012.07.051
  • Dergi Adı: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4237-4244
  • Anahtar Kelimeler: Ising nanowire, Random magnetic field, Gaussian magnetic field distribution, CRITICAL-BEHAVIOR, MODEL, NANOPARTICLE, SPIN-1/2, TEMPERATURE, TRANSITION, POINT, MAGNETIZATIONS, INSTABILITY, NANOTUBES
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

The effect of the random magnetic field distribution on the phase diagrams and ground state magnetizations of the Ising nanowire has been investigated with effective field theory with correlations. Gaussian distribution has been chosen as a random magnetic field distribution. The variation of the phase diagrams with that distribution parameters has been obtained and some interesting results have been found such as disappearance of the reentrant behavior and first order transitions which appear in the case of discrete distributions. Also for single and double Gaussian distributions, ground state magnetizations for different distribution parameters have been determined which can be regarded as separate partially ordered phases of the system. (c) 2012 Elsevier B.V. All rights reserved.