NMR studies of the exotic members of the Bechgaard salts, NO3 and FSO3 salts

K. Hiraki; T. Nemoto; T. Takahashi; Haeyong Kang; Younjung Jo; W. Kang; Ok Hee Cung

doi:10.1016/S0379-6779(02)00791-9

NMR studies of the exotic members of the Bechgaard salts, NO₃ and FSO₃ salts

K. Hiraki, T. Nemoto, T. Takahashi, Haeyong Kang, Younjung Jo, W. Kang, Ok Hee Cung

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Abstract

¹H, ¹⁹F and ⁷⁷Se NMR measurements were performed to investigate the properties of Bechgaard salts, (TMTSF) ₂X, with noncentrosymmetric anions, X=NO₃ and FSO ₃. Single crystal ⁷⁷Se NMR signal for NO₃ salt detects the spin density wave transition. Preliminary analyses of the angular dependence of ¹H NMR spectra were also carried out. Spin density wave in the NO₃ salt was confirmed to have an incommensurate wave number and relatively small amplitude. ¹⁹F and ⁷⁷Se NMR signals in the FSO₃ salt could detect drastic anomaly at the anion ordering temperature. The insulating state was confirmed to be nonmagnetic with a large spin gap of 420 K.

Original language	English
Pages (from-to)	691-692
Number of pages	2
Journal	Synthetic Metals
Volume	135-136
DOIs	https://doi.org/10.1016/S0379-6779(02)00791-9
State	Published - 4 Apr 2003

Keywords

Metal-insulator transitions
Nuclear magnetic resonance spectroscopy
Organic conductors based on radical cation and/or anion salts

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10.1016/S0379-6779(02)00791-9

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title = "NMR studies of the exotic members of the Bechgaard salts, NO3 and FSO3 salts",

abstract = "1H, 19F and 77Se NMR measurements were performed to investigate the properties of Bechgaard salts, (TMTSF) 2X, with noncentrosymmetric anions, X=NO3 and FSO 3. Single crystal 77Se NMR signal for NO3 salt detects the spin density wave transition. Preliminary analyses of the angular dependence of 1H NMR spectra were also carried out. Spin density wave in the NO3 salt was confirmed to have an incommensurate wave number and relatively small amplitude. 19F and 77Se NMR signals in the FSO3 salt could detect drastic anomaly at the anion ordering temperature. The insulating state was confirmed to be nonmagnetic with a large spin gap of 420 K.",

keywords = "Metal-insulator transitions, Nuclear magnetic resonance spectroscopy, Organic conductors based on radical cation and/or anion salts",

author = "K. Hiraki and T. Nemoto and T. Takahashi and Haeyong Kang and Younjung Jo and W. Kang and Cung, {Ok Hee}",

year = "2003",

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doi = "10.1016/S0379-6779(02)00791-9",

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volume = "135-136",

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TY - JOUR

T1 - NMR studies of the exotic members of the Bechgaard salts, NO3 and FSO3 salts

AU - Hiraki, K.

AU - Nemoto, T.

AU - Takahashi, T.

AU - Kang, Haeyong

AU - Jo, Younjung

AU - Kang, W.

AU - Cung, Ok Hee

PY - 2003/4/4

Y1 - 2003/4/4

N2 - 1H, 19F and 77Se NMR measurements were performed to investigate the properties of Bechgaard salts, (TMTSF) 2X, with noncentrosymmetric anions, X=NO3 and FSO 3. Single crystal 77Se NMR signal for NO3 salt detects the spin density wave transition. Preliminary analyses of the angular dependence of 1H NMR spectra were also carried out. Spin density wave in the NO3 salt was confirmed to have an incommensurate wave number and relatively small amplitude. 19F and 77Se NMR signals in the FSO3 salt could detect drastic anomaly at the anion ordering temperature. The insulating state was confirmed to be nonmagnetic with a large spin gap of 420 K.

AB - 1H, 19F and 77Se NMR measurements were performed to investigate the properties of Bechgaard salts, (TMTSF) 2X, with noncentrosymmetric anions, X=NO3 and FSO 3. Single crystal 77Se NMR signal for NO3 salt detects the spin density wave transition. Preliminary analyses of the angular dependence of 1H NMR spectra were also carried out. Spin density wave in the NO3 salt was confirmed to have an incommensurate wave number and relatively small amplitude. 19F and 77Se NMR signals in the FSO3 salt could detect drastic anomaly at the anion ordering temperature. The insulating state was confirmed to be nonmagnetic with a large spin gap of 420 K.

KW - Metal-insulator transitions

KW - Nuclear magnetic resonance spectroscopy

KW - Organic conductors based on radical cation and/or anion salts

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U2 - 10.1016/S0379-6779(02)00791-9

DO - 10.1016/S0379-6779(02)00791-9

M3 - Article

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SN - 0379-6779

VL - 135-136

SP - 691

EP - 692

JO - Synthetic Metals

JF - Synthetic Metals

ER -

NMR studies of the exotic members of the Bechgaard salts, NO₃ and FSO₃ salts

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Keywords

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