Giant Magnitostriction of Diluted Nickel Ferrite NiGa0.8Al0.8Fe0.4O4 with Frustrated Magnetic Structure

Abstract:

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The investigation of magnetic properties of diluted ferrite NiGa0.8Al0.8Fe0.4O4 is carried out. Anomalous behaviour of spontaneous magnetization σs(T), coercive force Hc(T) and volume magnetostriction ω(T) is revealed for the sample with frustrated magnetic structure. It is found that volume magnetostriction ω reaches very large (that is to say “giant”) values (ω ~ 5•10–4) (for T = 84 K). It is revealed that the derivative dω/dH is equal ≈ 43 • 10–9 Oe–1 (for T = 84 K). The assumption is made that the size of clusters is about 3 nm in the spin glass phase (for Tt < T < TC).

Info:

Periodical:

Solid State Phenomena (Volumes 152-153)

Edited by:

N. Perov

Pages:

97-99

DOI:

10.4028/www.scientific.net/SSP.152-153.97

Citation:

L.G. Antoshina and A.B. Korshak, "Giant Magnitostriction of Diluted Nickel Ferrite NiGa0.8Al0.8Fe0.4O4 with Frustrated Magnetic Structure", Solid State Phenomena, Vols. 152-153, pp. 97-99, 2009

Online since:

April 2009

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$35.00

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