Magnetic Behavior of Pure Endohedral Metallofullerene Ho@C82: A Comparison with Gd@C82

H. J. Huang; S. H. Yang; X. X. Zhang

doi:10.1021/jp990036h

Magnetic Behavior of Pure Endohedral Metallofullerene Ho@C₈₂: A Comparison with Gd@C₈₂

H. J. Huang, S. H. Yang^*, X. X. Zhang

^*Corresponding author for this work

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

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Abstract

Magnetic properties of Ho@C₈₂ and Gd@C₈₂ were characterized in the temperature range of 1.8-100 K with an applied magnetic field up to 5 T. The isothermal magnetization curves of Gd@C₈₂ and Ho@C₈₂ follow the Brillouin function down to 8 and 12 K, respectively. Unlike Gd@C₈₂, the fitting to the Curie-Wiess law for Ho@C₈₂ results in an effective magnetic moment which is significantly smaller than that of a free Ho³⁺ ion. The magnetic moment reduction and the imperfect paramagnetic behavior of Ho@C₈₂ are ascribed to the carbon cage crystal field effect, the partial hybridization of the orbitals of the entrapped Ho atom and the carbon cage, and the interactions between the metal centers.

Original language	English (US)
Pages (from-to)	5928-5932
Number of pages	5
Journal	Journal of Physical Chemistry B
Volume	103
Issue number	29
DOIs	https://doi.org/10.1021/jp990036h
State	Published - Jul 22 1999
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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abstract = "Magnetic properties of Ho@C82 and Gd@C82 were characterized in the temperature range of 1.8-100 K with an applied magnetic field up to 5 T. The isothermal magnetization curves of Gd@C82 and Ho@C82 follow the Brillouin function down to 8 and 12 K, respectively. Unlike Gd@C82, the fitting to the Curie-Wiess law for Ho@C82 results in an effective magnetic moment which is significantly smaller than that of a free Ho3+ ion. The magnetic moment reduction and the imperfect paramagnetic behavior of Ho@C82 are ascribed to the carbon cage crystal field effect, the partial hybridization of the orbitals of the entrapped Ho atom and the carbon cage, and the interactions between the metal centers.",

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T1 - Magnetic Behavior of Pure Endohedral Metallofullerene Ho@C82

T2 - A Comparison with Gd@C82

AU - Huang, H. J.

AU - Yang, S. H.

AU - Zhang, X. X.

PY - 1999/7/22

Y1 - 1999/7/22

N2 - Magnetic properties of Ho@C82 and Gd@C82 were characterized in the temperature range of 1.8-100 K with an applied magnetic field up to 5 T. The isothermal magnetization curves of Gd@C82 and Ho@C82 follow the Brillouin function down to 8 and 12 K, respectively. Unlike Gd@C82, the fitting to the Curie-Wiess law for Ho@C82 results in an effective magnetic moment which is significantly smaller than that of a free Ho3+ ion. The magnetic moment reduction and the imperfect paramagnetic behavior of Ho@C82 are ascribed to the carbon cage crystal field effect, the partial hybridization of the orbitals of the entrapped Ho atom and the carbon cage, and the interactions between the metal centers.

AB - Magnetic properties of Ho@C82 and Gd@C82 were characterized in the temperature range of 1.8-100 K with an applied magnetic field up to 5 T. The isothermal magnetization curves of Gd@C82 and Ho@C82 follow the Brillouin function down to 8 and 12 K, respectively. Unlike Gd@C82, the fitting to the Curie-Wiess law for Ho@C82 results in an effective magnetic moment which is significantly smaller than that of a free Ho3+ ion. The magnetic moment reduction and the imperfect paramagnetic behavior of Ho@C82 are ascribed to the carbon cage crystal field effect, the partial hybridization of the orbitals of the entrapped Ho atom and the carbon cage, and the interactions between the metal centers.

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Magnetic Behavior of Pure Endohedral Metallofullerene Ho@C₈₂: A Comparison with Gd@C₈₂

Abstract

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