Magnetic Properties and Size Effects of Spin-1/2 and Spin-1 Models of Core-Surface Nanoparticles in Different Type Lattices

Yalicin, Orhan; Erdem, Rıza; Demir, Zafer

doi:10.5772/34706

Cited by 5 publications

(3 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This structure may also be extended to hexagonal closed packed (hcp) lattice for any three-dimensional (3D) case which is not covered in Fig. 1 but is illustrated in a recent publication by Yalçın et al [27]. Similarly, a square lattice in 2D (shown in Fig.…”

Section: Definition Of a Nanoparticle With Core/surface Morphologymentioning

confidence: 88%

“…2) is enlarged to simple cubic lattice (sc) in 3D for a cubic nanoparticle. For the number of shells in both structures, each lattice is related to the radius (R) of the nanoparticle [27][28][29]. Therefore, the value of R contains a number of shells and the size of a nanoparticle increases as the number of shells increases.…”

Section: Definition Of a Nanoparticle With Core/surface Morphologymentioning

confidence: 99%

See 1 more Smart Citation

Thermal Hysteresis Due to the Structural Phase Transitions in Magnetization for Core-Surface Nanoparticles

Erdem¹,

Özüm²,

Yalçın³

2015

Recent Advances in Thermo and Fluid Dynamics

Self Cite

View full text Add to dashboard Cite

One important issue raised in magnetism studies is the thermal response of various magnetic properties. This topic is known as the magnetic thermal hysteresis MTH which is principally associated with magnetic phase transitions. The MTH is of particular interest for both quantum and applied physics researches on magnetization of nanomaterials. Hysteresis of the temperature-induced structural phase transitions in some materials and nanostructures with first-order phase transitions reduces useful magnetocaloric effect to transform cycling between martensite M and austenite A phases under application. In additional, the size, surface and boundary effects on thermal hysteresis loops have been under consideration for the development of research on nanostructured materials. Experimental data indicate that nanostructured materials offer many interesting prospects for the magnetization data and for understanding of temperature-induced M-A phase transitions. In this chapter, we have presented a review of the the latest theoretical developments in the field of MTH related to the structural phase transitions for the core-surface nanoparticles based on the fundamental formulation of pair approximation in Kikuchi version.

show abstract

Section: Definition Of a Nanoparticle With Core/surface Morphologymentioning

confidence: 88%

Section: Definition Of a Nanoparticle With Core/surface Morphologymentioning

confidence: 99%

Thermal Hysteresis Due to the Structural Phase Transitions in Magnetization for Core-Surface Nanoparticles

Erdem¹,

Özüm²,

Yalçın³

2015

Recent Advances in Thermo and Fluid Dynamics

Self Cite

View full text Add to dashboard Cite

show abstract

“…In recent years, nanorods, nanoparticles, quantum dots, nanocrystals etc. are in a class of nanostructures (Yalçın, 2012;Kartopu & Yalçın, 2010;Aktaş, 2006) studied extensively. As the dimensions of nano materials decrease down to the nanometer scale, the surface of nanostructures starts to exhibit new and interesting properties mainly due to quantum size effects.…”

Section: Magnetic Ordermentioning

confidence: 99%