Magnetic properties of natural chalcopyrite at low temperature

A. Rais; A. M. Gismelseed; A. D. Al-Rawas

doi:10.1016/S0167-577X(00)00199-3

Magnetic properties of natural chalcopyrite at low temperature

A. Rais^*, A. M. Gismelseed, A. D. Al-Rawas

^*Corresponding author for this work

Physics

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

19 Citations (Scopus)

Abstract

Magnetic susceptibilities of natural chalcopyrite from Cu ore deposits in Oman have been measured at temperatures between 77 and 450 K and magnetic field strengths between 6 and 9 kOe. The results show typical antiferromagnetism from 450 down to 190 K, where a magnetic phase transition is observed. Below the transition temperature, spontaneous magnetizations deduced from magnetic susceptibilities versus fields are extrapolated to 0 K to give a weak saturation magnetization of 0.015±0.001 emu g^-1. This value could be explained by Cu moments having a paramagnetic arrangement down to 190 K and then ordering magnetically at lower temperatures.

Original language	English
Pages (from-to)	349-353
Number of pages	5
Journal	Materials Letters
Volume	46
Issue number	6
DOIs	https://doi.org/10.1016/S0167-577X(00)00199-3
Publication status	Published - Dec 2000

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Magnetic properties of natural chalcopyrite at low temperature",

abstract = "Magnetic susceptibilities of natural chalcopyrite from Cu ore deposits in Oman have been measured at temperatures between 77 and 450 K and magnetic field strengths between 6 and 9 kOe. The results show typical antiferromagnetism from 450 down to 190 K, where a magnetic phase transition is observed. Below the transition temperature, spontaneous magnetizations deduced from magnetic susceptibilities versus fields are extrapolated to 0 K to give a weak saturation magnetization of 0.015±0.001 emu g-1. This value could be explained by Cu moments having a paramagnetic arrangement down to 190 K and then ordering magnetically at lower temperatures.",

author = "A. Rais and Gismelseed, {A. M.} and Al-Rawas, {A. D.}",

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T1 - Magnetic properties of natural chalcopyrite at low temperature

AU - Rais, A.

AU - Gismelseed, A. M.

AU - Al-Rawas, A. D.

PY - 2000/12

Y1 - 2000/12

N2 - Magnetic susceptibilities of natural chalcopyrite from Cu ore deposits in Oman have been measured at temperatures between 77 and 450 K and magnetic field strengths between 6 and 9 kOe. The results show typical antiferromagnetism from 450 down to 190 K, where a magnetic phase transition is observed. Below the transition temperature, spontaneous magnetizations deduced from magnetic susceptibilities versus fields are extrapolated to 0 K to give a weak saturation magnetization of 0.015±0.001 emu g-1. This value could be explained by Cu moments having a paramagnetic arrangement down to 190 K and then ordering magnetically at lower temperatures.

AB - Magnetic susceptibilities of natural chalcopyrite from Cu ore deposits in Oman have been measured at temperatures between 77 and 450 K and magnetic field strengths between 6 and 9 kOe. The results show typical antiferromagnetism from 450 down to 190 K, where a magnetic phase transition is observed. Below the transition temperature, spontaneous magnetizations deduced from magnetic susceptibilities versus fields are extrapolated to 0 K to give a weak saturation magnetization of 0.015±0.001 emu g-1. This value could be explained by Cu moments having a paramagnetic arrangement down to 190 K and then ordering magnetically at lower temperatures.

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VL - 46

SP - 349

EP - 353

JO - Materials Letters

JF - Materials Letters

IS - 6

ER -

Magnetic properties of natural chalcopyrite at low temperature

Abstract

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