Orientational ordering of (formula presented) in the antiferromagnetic (formula presented) phase

Taishi Takenobu; Serena Margadonna; Kosmas Prassides; Yoshihiro Iwasa; Hideo Shimoda

doi:10.1103/PhysRevB.64.132414

Orientational ordering of (formula presented) in the antiferromagnetic (formula presented) phase

Taishi Takenobu, Serena Margadonna, Kosmas Prassides, Yoshihiro Iwasa, Hideo Shimoda

Advanced Institute for Materials Research (AIMR)

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

Abstract

The absence of superconductivity in the ammoniated alkali fulleride, (formula presented) and the transition to an antiferromagnetic (AF) Mott insulating ground state have been associated with the combined effects of crystal symmetry lowering and increased interfullerene separation. We find that the low-temperature orientational ordering motif of the (formula presented) units in the perdeuterated analog, (formula presented) correlates well with the three-dimensional AF structure proposed by NMR, which arises through alternate stacking of two-dimensional sheets of (formula presented) which order ferrorotationally (antiferromagnetically) along the (formula presented) and antiferrorotationally (ferromagnetically) along the (formula presented) directions.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	64
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.64.132414
Publication status	Published - 2001 Jan 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "The absence of superconductivity in the ammoniated alkali fulleride, (formula presented) and the transition to an antiferromagnetic (AF) Mott insulating ground state have been associated with the combined effects of crystal symmetry lowering and increased interfullerene separation. We find that the low-temperature orientational ordering motif of the (formula presented) units in the perdeuterated analog, (formula presented) correlates well with the three-dimensional AF structure proposed by NMR, which arises through alternate stacking of two-dimensional sheets of (formula presented) which order ferrorotationally (antiferromagnetically) along the (formula presented) and antiferrorotationally (ferromagnetically) along the (formula presented) directions.",

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AU - Takenobu, Taishi

AU - Margadonna, Serena

AU - Prassides, Kosmas

AU - Iwasa, Yoshihiro

AU - Shimoda, Hideo

PY - 2001/1/1

Y1 - 2001/1/1

N2 - The absence of superconductivity in the ammoniated alkali fulleride, (formula presented) and the transition to an antiferromagnetic (AF) Mott insulating ground state have been associated with the combined effects of crystal symmetry lowering and increased interfullerene separation. We find that the low-temperature orientational ordering motif of the (formula presented) units in the perdeuterated analog, (formula presented) correlates well with the three-dimensional AF structure proposed by NMR, which arises through alternate stacking of two-dimensional sheets of (formula presented) which order ferrorotationally (antiferromagnetically) along the (formula presented) and antiferrorotationally (ferromagnetically) along the (formula presented) directions.

AB - The absence of superconductivity in the ammoniated alkali fulleride, (formula presented) and the transition to an antiferromagnetic (AF) Mott insulating ground state have been associated with the combined effects of crystal symmetry lowering and increased interfullerene separation. We find that the low-temperature orientational ordering motif of the (formula presented) units in the perdeuterated analog, (formula presented) correlates well with the three-dimensional AF structure proposed by NMR, which arises through alternate stacking of two-dimensional sheets of (formula presented) which order ferrorotationally (antiferromagnetically) along the (formula presented) and antiferrorotationally (ferromagnetically) along the (formula presented) directions.

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