Magnetization of (ET)2- and κ-(BETS)2-FeCl4

H. Uozaki; K. Okamoto; S. Endo; H. Matsui; K. Ueda; T. Sugimoto; N. Toyota

doi:10.1016/S0379-6779(98)00910-2

Magnetization of (ET)₂- and κ-(BETS)₂-FeCl₄

H. Uozaki, K. Okamoto, S. Endo, H. Matsui, K. Ueda, T. Sugimoto, N. Toyota

SCI - Physics

Research output: Contribution to journal › Conference article › peer-review

8 Citations (Scopus)

Abstract

Both (ET)₂FeCl₄ and κ-(BETS)₂FeCl₄ have Fe³⁺ ions in the anion layer. The former is a semiconductor with an energy gap of 0.12 eV and the latter remains normal metallic down to below 0.5 K. Their magnetizations, which are very similar to each other, are scaled by the Brillouin function (S=5/2) modified by the effective temperature T^*=T-Θ. The Weiss temperature Θ is estimated to be -3 K and -1 K for ET and BETS salts, respectively. Both systems are concluded to have the high spin states (S=5/2) of Fe³⁺ ions which are antiferromagnetically interacting each other very weakly.

Original language	English
Pages (from-to)	1984
Number of pages	1
Journal	Synthetic Metals
Volume	103
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(98)00910-2
Publication status	Published - 1999 Jun 24
Event	Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier Duration: 1998 Jul 12 → 1998 Jul 18

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title = "Magnetization of (ET)2- and κ-(BETS)2-FeCl4",

abstract = "Both (ET)2FeCl4 and κ-(BETS)2FeCl4 have Fe3+ ions in the anion layer. The former is a semiconductor with an energy gap of 0.12 eV and the latter remains normal metallic down to below 0.5 K. Their magnetizations, which are very similar to each other, are scaled by the Brillouin function (S=5/2) modified by the effective temperature T*=T-Θ. The Weiss temperature Θ is estimated to be -3 K and -1 K for ET and BETS salts, respectively. Both systems are concluded to have the high spin states (S=5/2) of Fe3+ ions which are antiferromagnetically interacting each other very weakly.",

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TY - JOUR

T1 - Magnetization of (ET)2- and κ-(BETS)2-FeCl4

AU - Uozaki, H.

AU - Okamoto, K.

AU - Endo, S.

AU - Matsui, H.

AU - Ueda, K.

AU - Sugimoto, T.

AU - Toyota, N.

PY - 1999/6/24

Y1 - 1999/6/24

N2 - Both (ET)2FeCl4 and κ-(BETS)2FeCl4 have Fe3+ ions in the anion layer. The former is a semiconductor with an energy gap of 0.12 eV and the latter remains normal metallic down to below 0.5 K. Their magnetizations, which are very similar to each other, are scaled by the Brillouin function (S=5/2) modified by the effective temperature T*=T-Θ. The Weiss temperature Θ is estimated to be -3 K and -1 K for ET and BETS salts, respectively. Both systems are concluded to have the high spin states (S=5/2) of Fe3+ ions which are antiferromagnetically interacting each other very weakly.

AB - Both (ET)2FeCl4 and κ-(BETS)2FeCl4 have Fe3+ ions in the anion layer. The former is a semiconductor with an energy gap of 0.12 eV and the latter remains normal metallic down to below 0.5 K. Their magnetizations, which are very similar to each other, are scaled by the Brillouin function (S=5/2) modified by the effective temperature T*=T-Θ. The Weiss temperature Θ is estimated to be -3 K and -1 K for ET and BETS salts, respectively. Both systems are concluded to have the high spin states (S=5/2) of Fe3+ ions which are antiferromagnetically interacting each other very weakly.

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DO - 10.1016/S0379-6779(98)00910-2

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SP - 1984

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

T2 - Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98)

Y2 - 12 July 1998 through 18 July 1998

ER -

Magnetization of (ET)₂- and κ-(BETS)₂-FeCl₄

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