Mott-Hubbard transition in alkali ammonia fullerides

T. Takenobu; T. Muro; Y. Iwasa; T. Mitani

doi:10.1016/S0379-6779(00)01234-0

Mott-Hubbard transition in alkali ammonia fullerides

T. Takenobu^*, T. Muro, Y. Iwasa, T. Mitani

^*Corresponding author for this work

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

Abstract

Monoammoniated alkali fullerides salt (NH₃)K_3-xRb_xC₆₀ (0 ≤ x ≤ 3), forming an isostructural orthorhombic series followed by a Mott-Hubbard type antiferromagnetic transition. The Néel temperature T_N was found to first increase with the interfullerene spacing and then decreases for (NH₃)Rb₃C₆₀, forming a maximum at 76 K. This behavior can not be understood by a simple localized electron model and provides direct evidence for the important role of electron correlation effects.

Original language	English
Pages (from-to)	1173-1174
Number of pages	2
Journal	Synthetic Metals
Volume	121
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(00)01234-0
Publication status	Published - 2001 Mar 15
Externally published	Yes

Keywords

Diffraction and scattering
Electron spin resonance
Fullerenes and derivatives
Magnetic phase transitions
X-ray emission

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Materials Chemistry
Polymers and Plastics

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10.1016/S0379-6779(00)01234-0

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title = "Mott-Hubbard transition in alkali ammonia fullerides",

abstract = "Monoammoniated alkali fullerides salt (NH3)K3-xRbxC60 (0 ≤ x ≤ 3), forming an isostructural orthorhombic series followed by a Mott-Hubbard type antiferromagnetic transition. The N{\'e}el temperature TN was found to first increase with the interfullerene spacing and then decreases for (NH3)Rb3C60, forming a maximum at 76 K. This behavior can not be understood by a simple localized electron model and provides direct evidence for the important role of electron correlation effects.",

keywords = "Diffraction and scattering, Electron spin resonance, Fullerenes and derivatives, Magnetic phase transitions, X-ray emission",

author = "T. Takenobu and T. Muro and Y. Iwasa and T. Mitani",

year = "2001",

month = mar,

day = "15",

doi = "10.1016/S0379-6779(00)01234-0",

language = "English",

volume = "121",

pages = "1173--1174",

journal = "Synthetic Metals",

issn = "0379-6779",

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number = "1-3",

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TY - JOUR

T1 - Mott-Hubbard transition in alkali ammonia fullerides

AU - Takenobu, T.

AU - Muro, T.

AU - Iwasa, Y.

AU - Mitani, T.

PY - 2001/3/15

Y1 - 2001/3/15

N2 - Monoammoniated alkali fullerides salt (NH3)K3-xRbxC60 (0 ≤ x ≤ 3), forming an isostructural orthorhombic series followed by a Mott-Hubbard type antiferromagnetic transition. The Néel temperature TN was found to first increase with the interfullerene spacing and then decreases for (NH3)Rb3C60, forming a maximum at 76 K. This behavior can not be understood by a simple localized electron model and provides direct evidence for the important role of electron correlation effects.

AB - Monoammoniated alkali fullerides salt (NH3)K3-xRbxC60 (0 ≤ x ≤ 3), forming an isostructural orthorhombic series followed by a Mott-Hubbard type antiferromagnetic transition. The Néel temperature TN was found to first increase with the interfullerene spacing and then decreases for (NH3)Rb3C60, forming a maximum at 76 K. This behavior can not be understood by a simple localized electron model and provides direct evidence for the important role of electron correlation effects.

KW - Diffraction and scattering

KW - Electron spin resonance

KW - Fullerenes and derivatives

KW - Magnetic phase transitions

KW - X-ray emission

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U2 - 10.1016/S0379-6779(00)01234-0

DO - 10.1016/S0379-6779(00)01234-0

M3 - Article

AN - SCOPUS:0035866955

SN - 0379-6779

VL - 121

SP - 1173

EP - 1174

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Mott-Hubbard transition in alkali ammonia fullerides

Abstract

Keywords

ASJC Scopus subject areas

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