Effect of Mn concentration on the spin glass transition temperature of Fe0.70-xMnxAl0.30 alloys

K. A. Azez; M. K. Hasan; I. A. Al-Omari

doi:10.1016/S0925-8388(03)00377-3

Effect of Mn concentration on the spin glass transition temperature of Fe_0.70-xMn_xAl_0.30 alloys

K. A. Azez^*, M. K. Hasan, I. A. Al-Omari

^*Corresponding author for this work

Physics

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

2 Citations (Scopus)

Abstract

Magnetization measurements on zero field cooled (ZFC) and field cooled (FC) samples as a function of temperature where made on Fe_0.70-xMn _xAl_0.30 alloys with 0≤x≤0.10. Our data show the existence of two regimes of the spin glass temperature T_f when increasing the concentration x of the Mn atoms. We found that T_f decreases slowly with increasing x up to x=0.06 and then shows a rapid linear decrease above this concentration. The existence of two regimes of T _f behavior with x may be attributed to the disappearance of ferromagnetic clusters which exist for low values of x (x<0.06). Compared to the Mn-free alloy, the relative changes in T_f are bigger and exceed 40% at x=0.10. The second regime (x>0.06) is associated with more influence of x on T_f.

Original language	English
Pages (from-to)	69-71
Number of pages	3
Journal	Journal of Alloys and Compounds
Volume	360
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(03)00377-3
Publication status	Published - Oct 6 2003

Keywords

Magnetic measurements
Magnetically ordered compounds
Spin glasses
Transition metal compounds

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S0925-8388(03)00377-3

Cite this

@article{7028526adf3c488aae80be976406b000,

title = "Effect of Mn concentration on the spin glass transition temperature of Fe0.70-xMnxAl0.30 alloys",

abstract = "Magnetization measurements on zero field cooled (ZFC) and field cooled (FC) samples as a function of temperature where made on Fe0.70-xMn xAl0.30 alloys with 0≤x≤0.10. Our data show the existence of two regimes of the spin glass temperature Tf when increasing the concentration x of the Mn atoms. We found that Tf decreases slowly with increasing x up to x=0.06 and then shows a rapid linear decrease above this concentration. The existence of two regimes of T f behavior with x may be attributed to the disappearance of ferromagnetic clusters which exist for low values of x (x<0.06). Compared to the Mn-free alloy, the relative changes in Tf are bigger and exceed 40% at x=0.10. The second regime (x>0.06) is associated with more influence of x on Tf.",

keywords = "Magnetic measurements, Magnetically ordered compounds, Spin glasses, Transition metal compounds",

author = "Azez, {K. A.} and Hasan, {M. K.} and Al-Omari, {I. A.}",

note = "Funding Information: One of us (K.A. Azez) would like to thank Professor Mike McElfresh, Director of Material Research Institute, Lawrence Livermore National Laboratory, CA, USA, for facilities given in the Lab. The authors would like to thank Professor W. Oliver from Department of Physics at the University of Arkansas, USA. We are very grateful to Jordan University of Science and Technology, for financial support. ",

year = "2003",

month = oct,

day = "6",

doi = "10.1016/S0925-8388(03)00377-3",

language = "English",

volume = "360",

pages = "69--71",

journal = "Journal of Alloys and Compounds",

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publisher = "Elsevier BV",

number = "1-2",

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TY - JOUR

T1 - Effect of Mn concentration on the spin glass transition temperature of Fe0.70-xMnxAl0.30 alloys

AU - Azez, K. A.

AU - Hasan, M. K.

AU - Al-Omari, I. A.

N1 - Funding Information: One of us (K.A. Azez) would like to thank Professor Mike McElfresh, Director of Material Research Institute, Lawrence Livermore National Laboratory, CA, USA, for facilities given in the Lab. The authors would like to thank Professor W. Oliver from Department of Physics at the University of Arkansas, USA. We are very grateful to Jordan University of Science and Technology, for financial support.

PY - 2003/10/6

Y1 - 2003/10/6

N2 - Magnetization measurements on zero field cooled (ZFC) and field cooled (FC) samples as a function of temperature where made on Fe0.70-xMn xAl0.30 alloys with 0≤x≤0.10. Our data show the existence of two regimes of the spin glass temperature Tf when increasing the concentration x of the Mn atoms. We found that Tf decreases slowly with increasing x up to x=0.06 and then shows a rapid linear decrease above this concentration. The existence of two regimes of T f behavior with x may be attributed to the disappearance of ferromagnetic clusters which exist for low values of x (x<0.06). Compared to the Mn-free alloy, the relative changes in Tf are bigger and exceed 40% at x=0.10. The second regime (x>0.06) is associated with more influence of x on Tf.

AB - Magnetization measurements on zero field cooled (ZFC) and field cooled (FC) samples as a function of temperature where made on Fe0.70-xMn xAl0.30 alloys with 0≤x≤0.10. Our data show the existence of two regimes of the spin glass temperature Tf when increasing the concentration x of the Mn atoms. We found that Tf decreases slowly with increasing x up to x=0.06 and then shows a rapid linear decrease above this concentration. The existence of two regimes of T f behavior with x may be attributed to the disappearance of ferromagnetic clusters which exist for low values of x (x<0.06). Compared to the Mn-free alloy, the relative changes in Tf are bigger and exceed 40% at x=0.10. The second regime (x>0.06) is associated with more influence of x on Tf.

KW - Magnetic measurements

KW - Magnetically ordered compounds

KW - Spin glasses

KW - Transition metal compounds

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