Coexistence of ferrimagnetic long-range order and cluster superparamagnetism in (formula presented)

H. Rabitz; D. Mertz; F. Celestini; J. M. Debierre; B. E. Vugmeister

doi:10.1103/PhysRevB.64.094437

Coexistence of ferrimagnetic long-range order and cluster superparamagnetism in (formula presented)

H. Rabitz, D. Mertz, F. Celestini, J. M. Debierre, B. E. Vugmeister

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We study numericaly and analytically a simple model for the magnetic properties of moderately impure (formula presented) (formula presented) compounds. The model largely relies on available experimental results and it is investigated by complementary methods: percolation and Monte Carlo simulations, together with random-field analytical theory. Our results conclusively show a critical change of the magnetic response above a given concentration (formula presented) We find that, beyond this concentration, the unusual features of the spontaneous magnetization observed experimentally result from the coexistence of ferrimagnetic long-range order with cluster superparamagnetism.

Original language	English (US)
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	64
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.64.094437
State	Published - 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.64.094437

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title = "Coexistence of ferrimagnetic long-range order and cluster superparamagnetism in (formula presented)",

abstract = "We study numericaly and analytically a simple model for the magnetic properties of moderately impure (formula presented) (formula presented) compounds. The model largely relies on available experimental results and it is investigated by complementary methods: percolation and Monte Carlo simulations, together with random-field analytical theory. Our results conclusively show a critical change of the magnetic response above a given concentration (formula presented) We find that, beyond this concentration, the unusual features of the spontaneous magnetization observed experimentally result from the coexistence of ferrimagnetic long-range order with cluster superparamagnetism.",

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doi = "10.1103/PhysRevB.64.094437",

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AU - Rabitz, H.

AU - Mertz, D.

AU - Celestini, F.

AU - Debierre, J. M.

AU - Vugmeister, B. E.

PY - 2001

Y1 - 2001

N2 - We study numericaly and analytically a simple model for the magnetic properties of moderately impure (formula presented) (formula presented) compounds. The model largely relies on available experimental results and it is investigated by complementary methods: percolation and Monte Carlo simulations, together with random-field analytical theory. Our results conclusively show a critical change of the magnetic response above a given concentration (formula presented) We find that, beyond this concentration, the unusual features of the spontaneous magnetization observed experimentally result from the coexistence of ferrimagnetic long-range order with cluster superparamagnetism.

AB - We study numericaly and analytically a simple model for the magnetic properties of moderately impure (formula presented) (formula presented) compounds. The model largely relies on available experimental results and it is investigated by complementary methods: percolation and Monte Carlo simulations, together with random-field analytical theory. Our results conclusively show a critical change of the magnetic response above a given concentration (formula presented) We find that, beyond this concentration, the unusual features of the spontaneous magnetization observed experimentally result from the coexistence of ferrimagnetic long-range order with cluster superparamagnetism.

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JF - Physical Review B - Condensed Matter and Materials Physics

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Coexistence of ferrimagnetic long-range order and cluster superparamagnetism in (formula presented)

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