Magnetic properties of CoCl2-intercalated graphite

M. Elahy; M. Shayegan; K. Y. Szeto; G. Dresselhaus

doi:10.1016/0379-6779(83)90008-5

Magnetic properties of CoCl₂-intercalated graphite

M. Elahy, M. Shayegan, K. Y. Szeto, G. Dresselhaus

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

21 Scopus citations

Abstract

The temperature and magnetic field dependence of the magnetic susceptibility and heat capacity of graphite-CoCl₂ are investigated to understand the role of dimensionality in the observed magnetic phase transitions. The structure of graphite-CoCl₂ shows similarities between the magnetic layers of Co²⁺ in pristine and in the intercalated CoCl₂ compound. However, microstructural analysis shows the presence of small islands of magnetic ions. The theoretical model for the 2-dimensional planar magnets is extended to include small magnetic domains. The finite size effect analysis shows good agreement between the experimental and theoretical results. The presence of external magnetic fields demonstrates the static scaling hypothesis for the magnetic susceptibility and heat capacity.

Original language	English (US)
Pages (from-to)	35-42
Number of pages	8
Journal	Synthetic Metals
Volume	8
Issue number	1-2
DOIs	https://doi.org/10.1016/0379-6779(83)90008-5
State	Published - Dec 1983
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/0379-6779(83)90008-5

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@article{93a6a97e4896486cbb9ed84549bbae66,

title = "Magnetic properties of CoCl2-intercalated graphite",

abstract = "The temperature and magnetic field dependence of the magnetic susceptibility and heat capacity of graphite-CoCl2 are investigated to understand the role of dimensionality in the observed magnetic phase transitions. The structure of graphite-CoCl2 shows similarities between the magnetic layers of Co2+ in pristine and in the intercalated CoCl2 compound. However, microstructural analysis shows the presence of small islands of magnetic ions. The theoretical model for the 2-dimensional planar magnets is extended to include small magnetic domains. The finite size effect analysis shows good agreement between the experimental and theoretical results. The presence of external magnetic fields demonstrates the static scaling hypothesis for the magnetic susceptibility and heat capacity.",

author = "M. Elahy and M. Shayegan and Szeto, {K. Y.} and G. Dresselhaus",

note = "Funding Information: § Center for Materials Science and Engineering. *Department of Physics. tDepartment of Electrical Engineering and Computer Science. ¶ Francis Bitter National Magnet Laboratory, sponsored by NSF.",

year = "1983",

month = dec,

doi = "10.1016/0379-6779(83)90008-5",

language = "English (US)",

volume = "8",

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journal = "Synthetic Metals",

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TY - JOUR

T1 - Magnetic properties of CoCl2-intercalated graphite

AU - Elahy, M.

AU - Shayegan, M.

AU - Szeto, K. Y.

AU - Dresselhaus, G.

N1 - Funding Information: § Center for Materials Science and Engineering. *Department of Physics. tDepartment of Electrical Engineering and Computer Science. ¶ Francis Bitter National Magnet Laboratory, sponsored by NSF.

PY - 1983/12

Y1 - 1983/12

N2 - The temperature and magnetic field dependence of the magnetic susceptibility and heat capacity of graphite-CoCl2 are investigated to understand the role of dimensionality in the observed magnetic phase transitions. The structure of graphite-CoCl2 shows similarities between the magnetic layers of Co2+ in pristine and in the intercalated CoCl2 compound. However, microstructural analysis shows the presence of small islands of magnetic ions. The theoretical model for the 2-dimensional planar magnets is extended to include small magnetic domains. The finite size effect analysis shows good agreement between the experimental and theoretical results. The presence of external magnetic fields demonstrates the static scaling hypothesis for the magnetic susceptibility and heat capacity.

AB - The temperature and magnetic field dependence of the magnetic susceptibility and heat capacity of graphite-CoCl2 are investigated to understand the role of dimensionality in the observed magnetic phase transitions. The structure of graphite-CoCl2 shows similarities between the magnetic layers of Co2+ in pristine and in the intercalated CoCl2 compound. However, microstructural analysis shows the presence of small islands of magnetic ions. The theoretical model for the 2-dimensional planar magnets is extended to include small magnetic domains. The finite size effect analysis shows good agreement between the experimental and theoretical results. The presence of external magnetic fields demonstrates the static scaling hypothesis for the magnetic susceptibility and heat capacity.

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EP - 42

JO - Synthetic Metals

JF - Synthetic Metals

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ER -

Magnetic properties of CoCl₂-intercalated graphite

Abstract

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