Magnetic properties of the ferrimagnetic spinels systems CoFe2–2xCr2xO4

The magnetic properties of a diluted ferrimagnetic spinels system CoFe2–2xCr2xO4 are studied using the high-temperature series expansions method in the range 0 ≤ x ≤ 1. The inter-sublattice exchange interactions (JCo Cr or JCo–Fe) are calculated using the probability law. The high-temperature series expansions, together with the Padé-approximants method, are applied to the spinels systems CoFe2–2xCr2xO4 to determine the magnetic phase diagram, i.e., TC versus dilution x. The critical exponent associated with the magnetic susceptibility (γ) is deduced. PACS Nos.: 75.30.Et; 75.40.Cx; 74.25.Ha, 75.30.Cr

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STUDY OF MAGNETIC PROPERTIES OF DILUTED FERRIMAGNETIC SPINELS SYSTEMS BY: HIGH TEMPERATURE SERIES EXPANSIONS

International Journal of Modern Physics B ◽

10.1142/s0217979210057432 ◽

2010 ◽

Vol 24 (31) ◽

pp. 6157-6163

Author(s):

RACHID MASROUR ◽

MOHAMED HAMEDOUN ◽

ABDELILAH BENYOUSSEF

Keyword(s):

Phase Diagram ◽

Magnetic Properties ◽

Magnetic Susceptibility ◽

High Temperature ◽

Critical Exponent ◽

Magnetic Phase ◽

Magnetic Phase Diagram ◽

Exchange Interactions ◽

Temperature Series ◽

Series Expansions

The ferrimagnetic spinels systems Co x Fe 1-x Cr 2 S 4 has been studied by high-temperature series expansions method in the range 0 ≤x ≤1. The exchange interactions and exchange energies are calculated by using the probability law. The high-temperature series expansions have been applied in the spinels systems Co x Fe 1-x Cr 2 S 4, combined with the Padé approximants method, to determine the magnetic phase diagram, i.e., TC versus dilution x. The critical exponent associated with the magnetic susceptibility (γ) is deduced.

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MAGNETIC PROPERTIES OF PSEUDO-BINARY Mn1−xFexSn2 ALLOYS

International Journal of Modern Physics B ◽

10.1142/s0217979293001852 ◽

1993 ◽

Vol 07 (01n03) ◽

pp. 867-870 ◽

Cited By ~ 3

Author(s):

H. SHIRAISHI ◽

T. HORI ◽

Y. YAMAGUCHI ◽

S. FUNAHASHI ◽

K. KANEMATSU

Keyword(s):

Field Theory ◽

Phase Diagram ◽

Magnetic Properties ◽

Magnetic Susceptibility ◽

High Temperature ◽

Magnetic Structure ◽

Magnetic Phase ◽

Magnetic Phase Diagram ◽

Molecular Field ◽

Magnetic Phases

The magnetic susceptibility measurements have been made on antiferromagnetic compounds Mn1–xFexSn2 and the magnetic phase diagram was illustrated. The high temperature magnetic phases I and III, major phases, were analyzed on the basis of molecular field theory and explained the change of magnetic structure I⇌III occured at x≈0.8.

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Magnetic properties and phase diagram of ZnxNi1−xFe2O4: High-temperature series expansions

Journal of Magnetism and Magnetic Materials ◽

10.1016/j.jmmm.2010.05.030 ◽

2010 ◽

Vol 322 (21) ◽

pp. 3227-3235 ◽

Cited By ~ 15

Author(s):

M. Hamedoun ◽

A. Benyoussef ◽

M. Bousmina

Keyword(s):

Phase Diagram ◽

Magnetic Properties ◽

High Temperature ◽

Temperature Series ◽

Series Expansions

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Magnetic properties of NiAlxFe2−xO4 spinels: A mean field approach and high-temperature series expansions study

International Journal of Modern Physics B ◽

10.1142/s0217979218500704 ◽

2018 ◽

Vol 32 (07) ◽

pp. 1850070 ◽

Cited By ~ 1

Author(s):

S. Salmi ◽

R. Masrour ◽

A. El Grini ◽

K. Bouslykhane ◽

A. Hourmatallah ◽

...

Keyword(s):

Magnetic Properties ◽

High Temperature ◽

Critical Temperature ◽

Magnetic Measurement ◽

Mean Field Theory ◽

Mean Field ◽

Exchange Interactions ◽

Temperature Series ◽

Series Expansions ◽

Good Agreement

The magnetic properties of NiAl[Formula: see text]Fe[Formula: see text]O4 (NAFO) spinels were studied. Influence of Al doping on magnetic properties of NiFe2O4 spinel were examined. The exchange interactions in NAFO were obtained. The general expression of saturation magnetization and the critical temperature were obtained using mean field theory. The high-temperature series expansions combined with the Padé approximant are given to determine the critical temperature of NAFO. The critical exponent associated with the magnetic susceptibility [Formula: see text] was also deduced. The obtained results were in good agreement with magnetic measurement.

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