Magnetic Properties of a Transverse Ising Nanoparticle

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• 作者：S. Bouhou (1)
  I. Essaoudi (1) (3)
  A. Ainane (1) (2) (3) (4)
  A. Oubelkacem (1)
  R. Ahuja (3)
  F. Dujardin (4)
  
  1. Laboratoire de Physique des Mat茅riaux et Mod茅lisations des Syst猫mes ; (LP2MS) Unit茅 Associ茅e au CNRST-URAC 08 ; Facult茅 des Sciences ; D茅partement de Physique ; Universit茅 Moulay Ismail ; 11201 ; Mekn猫s ; Morocco
  3. Condensed Matter Theory Group ; Department of Physics and Astronomy ; Uppsala University ; 75120 ; Uppsala ; Sweden
  2. Max-Planck-Institut f眉r Physik Complexer Systeme ; N枚thnitzer Str. 38 ; 01187 ; Dresden ; Germany
  4. Laboratoire de Physique des Milieux Denses (LPMD) ; Institut de Chimie ; Physique et Mat茅riaux (ICPM) ; 1 Bd. Arago ; 57070 ; Metz ; France
  
• 关键词：Effective field theory ; Antiferromagnetic nanoparticle ; Hysteresis loops ; Transverse field
• 刊名：Journal of Superconductivity Incorporating Novel Magnetism
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：28
• 期：3
• 页码：885-890
• 全文大小：1,043 KB
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• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Superconductivity, Superfluidity and Quantum Fluids
  Magnetism and Magnetic Materials
  Condensed Matter
  Characterization and Evaluation Materials
  
• 出版者：Springer New York
• ISSN：1557-1947

文摘

We use the effective field theory with a probability distribution technique to investigate the magnetic properties of an antiferromagnetic Ising core/shell nanoparticle with a negative interlayer coupling core/shell in the presence of both the longitudinal and the transverse fields. Nearest-neighbor pair interactions are incorporated between the Ising spins in three parts that are core, core/shell, and surface shell. The effects of the external and the transverse fields and the exchange interactions between core/shell and in surface shell on the hysteresis loops and the susceptibility of the nanoparticle are examined. A number of interesting phenomena have been found.