Magnetization under high-pressure in organic ferromagnet α-TDAE-C60

Takashi Kambe, K. Ishida, M. Fujiwara, K. Oshima

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The magnetization measurements under pressure were performed on the fullerene-based ferromagnet, α-TDAE-C60. We found that the saturation magnetization below the ferromagnetic ordering temperature Tc is rapidly suppressed with increasing pressure and disappeared above Pc 2 = 0.1 - 0.2 GPa. This pressure is remarkably lower than the critical pressure of polymerization Pc = 0.7 GPa. On the contrary, Tc is almost pressure independent below Pc 2, but, above Pc 2, could not be entirely determined because of the strong suppression of the magnetization. In the paramagnetic region, the susceptibility under pressure indicates the total number of spins remains unchanged around Pc 2 as well as Pc. We discuss these results compared with the high-pressure ESR.

Original languageEnglish
Pages (from-to)1432-1434
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 2
DOIs
Publication statusPublished - Mar 2007

Fingerprint

Magnetization
magnetization
critical pressure
Fullerenes
fullerenes
polymerization
Saturation magnetization
retarding
magnetic permeability
saturation
Paramagnetic resonance
Polymerization
temperature
Temperature

Keywords

  • α-TDAE-C
  • Fullerene
  • High pressure magnetization
  • Organic ferromagnet

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Magnetization under high-pressure in organic ferromagnet α-TDAE-C60. / Kambe, Takashi; Ishida, K.; Fujiwara, M.; Oshima, K.

In: Journal of Magnetism and Magnetic Materials, Vol. 310, No. 2 SUPPL. PART 2, 03.2007, p. 1432-1434.

Research output: Contribution to journalArticle

Kambe, Takashi ; Ishida, K. ; Fujiwara, M. ; Oshima, K. / Magnetization under high-pressure in organic ferromagnet α-TDAE-C60. In: Journal of Magnetism and Magnetic Materials. 2007 ; Vol. 310, No. 2 SUPPL. PART 2. pp. 1432-1434.
@article{1f9454e104f145448722c610260ffe5d,
title = "Magnetization under high-pressure in organic ferromagnet α-TDAE-C60",
abstract = "The magnetization measurements under pressure were performed on the fullerene-based ferromagnet, α-TDAE-C60. We found that the saturation magnetization below the ferromagnetic ordering temperature Tc is rapidly suppressed with increasing pressure and disappeared above Pc 2 = 0.1 - 0.2 GPa. This pressure is remarkably lower than the critical pressure of polymerization Pc = 0.7 GPa. On the contrary, Tc is almost pressure independent below Pc 2, but, above Pc 2, could not be entirely determined because of the strong suppression of the magnetization. In the paramagnetic region, the susceptibility under pressure indicates the total number of spins remains unchanged around Pc 2 as well as Pc. We discuss these results compared with the high-pressure ESR.",
keywords = "α-TDAE-C, Fullerene, High pressure magnetization, Organic ferromagnet",
author = "Takashi Kambe and K. Ishida and M. Fujiwara and K. Oshima",
year = "2007",
month = "3",
doi = "10.1016/j.jmmm.2006.10.661",
language = "English",
volume = "310",
pages = "1432--1434",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",
number = "2 SUPPL. PART 2",

}

TY - JOUR

T1 - Magnetization under high-pressure in organic ferromagnet α-TDAE-C60

AU - Kambe, Takashi

AU - Ishida, K.

AU - Fujiwara, M.

AU - Oshima, K.

PY - 2007/3

Y1 - 2007/3

N2 - The magnetization measurements under pressure were performed on the fullerene-based ferromagnet, α-TDAE-C60. We found that the saturation magnetization below the ferromagnetic ordering temperature Tc is rapidly suppressed with increasing pressure and disappeared above Pc 2 = 0.1 - 0.2 GPa. This pressure is remarkably lower than the critical pressure of polymerization Pc = 0.7 GPa. On the contrary, Tc is almost pressure independent below Pc 2, but, above Pc 2, could not be entirely determined because of the strong suppression of the magnetization. In the paramagnetic region, the susceptibility under pressure indicates the total number of spins remains unchanged around Pc 2 as well as Pc. We discuss these results compared with the high-pressure ESR.

AB - The magnetization measurements under pressure were performed on the fullerene-based ferromagnet, α-TDAE-C60. We found that the saturation magnetization below the ferromagnetic ordering temperature Tc is rapidly suppressed with increasing pressure and disappeared above Pc 2 = 0.1 - 0.2 GPa. This pressure is remarkably lower than the critical pressure of polymerization Pc = 0.7 GPa. On the contrary, Tc is almost pressure independent below Pc 2, but, above Pc 2, could not be entirely determined because of the strong suppression of the magnetization. In the paramagnetic region, the susceptibility under pressure indicates the total number of spins remains unchanged around Pc 2 as well as Pc. We discuss these results compared with the high-pressure ESR.

KW - α-TDAE-C

KW - Fullerene

KW - High pressure magnetization

KW - Organic ferromagnet

UR - http://www.scopus.com/inward/record.url?scp=33847273202&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33847273202&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2006.10.661

DO - 10.1016/j.jmmm.2006.10.661

M3 - Article

VL - 310

SP - 1432

EP - 1434

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 2 SUPPL. PART 2

ER -