Electronic properties of Cs2TCNQ3 crystals grown under magnetic field

N. Kuroda; T. Sugimoto; M. Hagiwara; Hasanudin; K. Ueda; T. Tada; H. Uozaki; N. Toyota; I. Mogi; K. Watanabe; M. Motokawa

doi:10.1016/S0379-6779(02)00423-X

Electronic properties of Cs₂TCNQ₃ crystals grown under magnetic field

N. Kuroda, T. Sugimoto, M. Hagiwara, Hasanudin, K. Ueda, T. Tada, H. Uozaki, N. Toyota, I. Mogi, K. Watanabe, M. Motokawa

IMR - Materials Property Division

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

11 Citations (Scopus)

Abstract

The influence of magnetic field on the crystallization process has been examined in Cs₂TCNQ₃ (TCNQ=tetracyanoquinodimethane), a strongly Coulomb-correlated organic semiconductor. The crystal structure is unaffected by the magnetic field, while the electric, magnetic and optical properties change markedly if the magnetic field higher than a threshold (~4T) is applied during the crystal growth. The high-field crystals exhibit a very weak but distinct spontaneous magnetization with the exceedingly high Curie temperature of ~420K. The infrared and visible spectroscopy data show that this novel ferromagnetism concurs with the renormalization of the π^* state of TCNQ radical anions, TCNQ^-.

Original language	English
Pages (from-to)	535-537
Number of pages	3
Journal	Synthetic Metals
Volume	133-134
DOIs	https://doi.org/10.1016/S0379-6779(02)00423-X
Publication status	Published - 2003 Mar 13
Event	ISCOM 2001 - Rusutsu, Hokkaido, Japan Duration: 2001 Sept 10 → 2001 Sept 14

Keywords

Infrared and visible spectroscopy
Magnetic field-induced acceptors
Organic ferromagnetism
TCNQ salt

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10.1016/S0379-6779(02)00423-X

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title = "Electronic properties of Cs2TCNQ3 crystals grown under magnetic field",

abstract = "The influence of magnetic field on the crystallization process has been examined in Cs2TCNQ3 (TCNQ=tetracyanoquinodimethane), a strongly Coulomb-correlated organic semiconductor. The crystal structure is unaffected by the magnetic field, while the electric, magnetic and optical properties change markedly if the magnetic field higher than a threshold (~4T) is applied during the crystal growth. The high-field crystals exhibit a very weak but distinct spontaneous magnetization with the exceedingly high Curie temperature of ~420K. The infrared and visible spectroscopy data show that this novel ferromagnetism concurs with the renormalization of the π* state of TCNQ radical anions, TCNQ-.",

keywords = "Infrared and visible spectroscopy, Magnetic field-induced acceptors, Organic ferromagnetism, TCNQ salt",

author = "N. Kuroda and T. Sugimoto and M. Hagiwara and Hasanudin and K. Ueda and T. Tada and H. Uozaki and N. Toyota and I. Mogi and K. Watanabe and M. Motokawa",

year = "2003",

month = mar,

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doi = "10.1016/S0379-6779(02)00423-X",

language = "English",

volume = "133-134",

pages = "535--537",

journal = "Synthetic Metals",

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note = "ISCOM 2001 ; Conference date: 10-09-2001 Through 14-09-2001",

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TY - JOUR

T1 - Electronic properties of Cs2TCNQ3 crystals grown under magnetic field

AU - Kuroda, N.

AU - Sugimoto, T.

AU - Hagiwara, M.

AU - Hasanudin,

AU - Ueda, K.

AU - Tada, T.

AU - Uozaki, H.

AU - Toyota, N.

AU - Mogi, I.

AU - Watanabe, K.

AU - Motokawa, M.

PY - 2003/3/13

Y1 - 2003/3/13

N2 - The influence of magnetic field on the crystallization process has been examined in Cs2TCNQ3 (TCNQ=tetracyanoquinodimethane), a strongly Coulomb-correlated organic semiconductor. The crystal structure is unaffected by the magnetic field, while the electric, magnetic and optical properties change markedly if the magnetic field higher than a threshold (~4T) is applied during the crystal growth. The high-field crystals exhibit a very weak but distinct spontaneous magnetization with the exceedingly high Curie temperature of ~420K. The infrared and visible spectroscopy data show that this novel ferromagnetism concurs with the renormalization of the π* state of TCNQ radical anions, TCNQ-.

AB - The influence of magnetic field on the crystallization process has been examined in Cs2TCNQ3 (TCNQ=tetracyanoquinodimethane), a strongly Coulomb-correlated organic semiconductor. The crystal structure is unaffected by the magnetic field, while the electric, magnetic and optical properties change markedly if the magnetic field higher than a threshold (~4T) is applied during the crystal growth. The high-field crystals exhibit a very weak but distinct spontaneous magnetization with the exceedingly high Curie temperature of ~420K. The infrared and visible spectroscopy data show that this novel ferromagnetism concurs with the renormalization of the π* state of TCNQ radical anions, TCNQ-.

KW - Infrared and visible spectroscopy

KW - Magnetic field-induced acceptors

KW - Organic ferromagnetism

KW - TCNQ salt

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U2 - 10.1016/S0379-6779(02)00423-X

DO - 10.1016/S0379-6779(02)00423-X

M3 - Conference article

AN - SCOPUS:0037435373

SN - 0379-6779

VL - 133-134

SP - 535

EP - 537

JO - Synthetic Metals

JF - Synthetic Metals

T2 - ISCOM 2001

Y2 - 10 September 2001 through 14 September 2001

ER -

Electronic properties of Cs₂TCNQ₃ crystals grown under magnetic field

Abstract

Keywords

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