Lattice structure of the fullerene ferromagnet TDAE-C60

Peter W. Stephens; David Cox; Joseph W. Lauher; Laszlo Mihaly; John B. Wiley; Pierre Marc Allemand; A. Hirsch; Karoly Holczer; Q. Li; Joe D. Thompson; Fred Wudl

doi:10.1038/355331a0

Lattice structure of the fullerene ferromagnet TDAE-C₆₀

Peter W. Stephens
, David Cox
, Joseph W. Lauher
, Laszlo Mihaly
, John B. Wiley
, Pierre Marc Allemand
, A. Hirsch
, Karoly Holczer
, Q. Li
, Joe D. Thompson
, Fred Wudl

Physics and Astronomy

Stony Brook University

Stony Brook University
Brookhaven National Laboratory
University of California at Los Angeles
University of California at Santa Barbara
Los Alamos National Laboratory

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

311 Scopus citations

Abstract

IN the brief time since the development of techniques for the purification of condensed phases of C₆₀ (refs 1, 2), compounds of C₆₀ have been synthesized that exhibit the important solid-state properties of superconductivity^3,4 and ferromagnetism⁵. The fact that the C₆₀ molecule participates in these two disparate effects is in itself striking; furthermore, the C₆₀-based material has the highestT_c of any molecular organic ferromagnet⁶. An understanding of the physical origin of this ferromagnetism is sure to require a knowledge of the crystal structure. Here we report on an X-ray diffraction study of the ferromagnet TDAE-C₆₀, where TDAE is tetrakis(dimethylamino)ethylene, C₂N₄(CH₃)₈. We find that the composition is stoichiometric with 1:1 ratio of TDAE to C₆₀. The structure has a c-centred monoclinic unit cell suggestive of an anisotropic, low-dimensional band structure. Any theory for the ferromagnetic behaviour will have to take this anisotropy into account.

Original language	English
Pages (from-to)	331-332
Number of pages	2
Journal	Nature
Volume	355
Issue number	6358
DOIs	https://doi.org/10.1038/355331a0
State	Published - 1992

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@article{2921e68a716849e59664d2d61542391f,

title = "Lattice structure of the fullerene ferromagnet TDAE-C60",

abstract = "IN the brief time since the development of techniques for the purification of condensed phases of C60 (refs 1, 2), compounds of C60 have been synthesized that exhibit the important solid-state properties of superconductivity3,4 and ferromagnetism5. The fact that the C60 molecule participates in these two disparate effects is in itself striking; furthermore, the C60-based material has the highestTc of any molecular organic ferromagnet6. An understanding of the physical origin of this ferromagnetism is sure to require a knowledge of the crystal structure. Here we report on an X-ray diffraction study of the ferromagnet TDAE-C60, where TDAE is tetrakis(dimethylamino)ethylene, C2N4(CH3)8. We find that the composition is stoichiometric with 1:1 ratio of TDAE to C60. The structure has a c-centred monoclinic unit cell suggestive of an anisotropic, low-dimensional band structure. Any theory for the ferromagnetic behaviour will have to take this anisotropy into account.",

author = "Stephens, \{Peter W.\} and David Cox and Lauher, \{Joseph W.\} and Laszlo Mihaly and Wiley, \{John B.\} and Allemand, \{Pierre Marc\} and A. Hirsch and Karoly Holczer and Q. Li and Thompson, \{Joe D.\} and Fred Wudl",

year = "1992",

doi = "10.1038/355331a0",

language = "English",

volume = "355",

pages = "331--332",

journal = "Nature",

issn = "0028-0836",

number = "6358",

}

TY - JOUR

T1 - Lattice structure of the fullerene ferromagnet TDAE-C60

AU - Stephens, Peter W.

AU - Cox, David

AU - Lauher, Joseph W.

AU - Mihaly, Laszlo

AU - Wiley, John B.

AU - Allemand, Pierre Marc

AU - Hirsch, A.

AU - Holczer, Karoly

AU - Li, Q.

AU - Thompson, Joe D.

AU - Wudl, Fred

PY - 1992

Y1 - 1992

N2 - IN the brief time since the development of techniques for the purification of condensed phases of C60 (refs 1, 2), compounds of C60 have been synthesized that exhibit the important solid-state properties of superconductivity3,4 and ferromagnetism5. The fact that the C60 molecule participates in these two disparate effects is in itself striking; furthermore, the C60-based material has the highestTc of any molecular organic ferromagnet6. An understanding of the physical origin of this ferromagnetism is sure to require a knowledge of the crystal structure. Here we report on an X-ray diffraction study of the ferromagnet TDAE-C60, where TDAE is tetrakis(dimethylamino)ethylene, C2N4(CH3)8. We find that the composition is stoichiometric with 1:1 ratio of TDAE to C60. The structure has a c-centred monoclinic unit cell suggestive of an anisotropic, low-dimensional band structure. Any theory for the ferromagnetic behaviour will have to take this anisotropy into account.

AB - IN the brief time since the development of techniques for the purification of condensed phases of C60 (refs 1, 2), compounds of C60 have been synthesized that exhibit the important solid-state properties of superconductivity3,4 and ferromagnetism5. The fact that the C60 molecule participates in these two disparate effects is in itself striking; furthermore, the C60-based material has the highestTc of any molecular organic ferromagnet6. An understanding of the physical origin of this ferromagnetism is sure to require a knowledge of the crystal structure. Here we report on an X-ray diffraction study of the ferromagnet TDAE-C60, where TDAE is tetrakis(dimethylamino)ethylene, C2N4(CH3)8. We find that the composition is stoichiometric with 1:1 ratio of TDAE to C60. The structure has a c-centred monoclinic unit cell suggestive of an anisotropic, low-dimensional band structure. Any theory for the ferromagnetic behaviour will have to take this anisotropy into account.

UR - https://www.scopus.com/pages/publications/11944268223

U2 - 10.1038/355331a0

DO - 10.1038/355331a0

M3 - Article

SN - 0028-0836

VL - 355

SP - 331

EP - 332

JO - Nature

JF - Nature

IS - 6358

ER -

Lattice structure of the fullerene ferromagnet TDAE-C₆₀

Abstract

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