13C NMR study of the chemical pressure effect in (TMTTF)2[(AsF6)x (SbF6)1-x] (x 0.5)

13C NMR measurements of (TMTTF)2[(AsF6)x (SbF6)1-x] (x ∼ 0.5) alloy were performed in order to understand the chemical pressure effect and the electronic state at low temperatures. The charge-ordering transition temperature is the intermediate value between those of SbF6 and AsF6 salts. The broadeni...

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Veröffentlicht in:Journal of physics. Conference series 2008-10, Vol.132 (1), p.012015
Hauptverfasser: Iwase, F, Sugiura, K, Furukawa, K, Nakamura, T
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creator Iwase, F
Sugiura, K
Furukawa, K
Nakamura, T
description 13C NMR measurements of (TMTTF)2[(AsF6)x (SbF6)1-x] (x ∼ 0.5) alloy were performed in order to understand the chemical pressure effect and the electronic state at low temperatures. The charge-ordering transition temperature is the intermediate value between those of SbF6 and AsF6 salts. The broadening of NMR spectra and the weak temperature dependence of the spin-lattice relaxation rate at low temperatures indicate that this salt is situated in the vicinity of the phase boundary between the spin-Peierls and antiferromagnetic phases.
doi_str_mv 10.1088/1742-6596/132/1/012015
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subjects Antiferromagnetism
Electron states
Low temperature
NMR
Nuclear magnetic resonance
Physics
Pressure effects
Spin-lattice relaxation
Temperature dependence
Transition temperature
title 13C NMR study of the chemical pressure effect in (TMTTF)2[(AsF6)x (SbF6)1-x] (x 0.5)
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