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Více informací o knize Magnetic and Structural Properties of Nanoparticles

• Parametry knihy
• Anotace
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Anotace knihy

Magnetic properties of NiO nanoparticles prepared by the sol-gel method in the size range D=5 nm to 20 nm, with and without oleic acid coating, are reported. For the coated and uncoated NiO nanorods of 5 nm diameter, variations of the magnetization M with temperature T (5 K to 370 K) and temperature variations of the EMR (electron magnetic resonance) spectra were measured to determine the respective blocking temperatures. For all the particles, measurements of M versus T in the zero-field cooled (ZFC) and field-cooled (FC) modes are used to determine the average blocking temperature Tp. For the OA coated particle, Tp increases with increase in size D as expected for superparamagnetic particles. However for the uncoated NP, Tp decreases initially with increase in size for D 10 nm, but for D 10 nm, Tp follows the same trend as for the coated NP. These differences are interpreted in terms of significant interparticle interaction.

Parametry knihy

• Plný název: Magnetic and Structural Properties of Nanoparticles
• Podnázev: Superparamagnetic properties of Nickel Oxide
• Autor: Jenny H. Shim
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 140
• EAN: 9783639200973
• ID: 06828114
• Nakladatelství: VDM Verlag Dr. Müller
• Rozměry: 220 × 150 × 8 mm
• Rok vydání: 2009

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