Observation of a Spin-Peierls Transition in a Heisenberg Antiferromagnetic Linear-Chain System

Bray, J. W.; Hart, H. R.; Interrante, L. V.; Jacobs, I. S.; Kasper, J. S.; Watkins, G. D.; Wee, Sung Hun; Bonner, Jill C.

doi:10.1103/physrevlett.35.744

Cited by 390 publications

(206 citation statements)

References 17 publications

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“…This transition was experimentally observed for the first time in charge-transfer complexes (TTF)[M{S 2 C 2 (CF 3 ) 2 }] (TTF = tetrathiafulvalene) (M = Cu, Au) [6,7] and MEM-(TCNQ) 2 (MEM = methyl-ethylmorpholinium) [8]. Decades later, the spin-Peierls transition was observed also in inorganic compounds, firstly in CuGeO 3 [9], which is a main representant of spinPeierls inorganic systems, and later also in (VO) 2 P 2 O 7 [10], which is a model system of interacting chains.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Two-gap magnetic structure of the two-stack anion-radical salt (N-Me-3,5-Di-Me-Py)(TCNQ)2 (Py is pyridine)

Radváková¹,

Kazheva²,

Chekhlov³

et al. 2010

Journal of Physics and Chemistry of Solids

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Section: Accepted Manuscriptmentioning

confidence: 99%

Two-gap magnetic structure of the two-stack anion-radical salt (N-Me-3,5-Di-Me-Py)(TCNQ)2 (Py is pyridine)

Radváková¹,

Kazheva²,

Chekhlov³

et al. 2010

Journal of Physics and Chemistry of Solids

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“…The SP state has been formerly investigated in a few organic materials (TTF-CuBDT, TTF-AuBDT, MEM(TCNQ) 2 [1,2], and more recently in an inorganic compound CuGeO 3 [3]. Despite different crystals structures, very similar physical properties are observed.…”

Section: Introductionmentioning

confidence: 77%

Charge, spin, and lattice effects in the spin-Peierls ground state of MEM(TCNQ)2

et al. 2013

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We report an investigation of charge, spin and lattice effects in the spin-Peierls state of the organic compound MEM(TCNQ)2. The 16.5 GHz dielectric function along the chain axis shows an enhancement below the spin-Peierls transition temperature near 18 K consistent with the charge coupling to the elastic strain involved in the transition. The velocity of two elastic modes perpendicular to the chain axis presents anomalies at the transition which can be explained with a Landau free energy model including a linear-quadratic coupling energy term between the appropriate elastic strain e and the spin-Peierls magnetic gap ∆q. The analysis of the dielectric and elastic features aims toward an order parameter with an associated critical exponent β ∼ 0.36, which is similar to the threedimensional behavior seen in other spin-Peierls materials. All these effects studied in a magnetic field up to 18 Teslas appear also compatible with a mean-field model of a quasi-one-dimensional spin-Peierls system.

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“…These results have now been extended to the related material DEM(TCNQ) 2 [49]. Other examples of spin-Peierls systems include other organic systems such as TTF-CuS 4 C 4 (CF 3 ) 4 (T sP = 12 K) [50] and TTF-AuS 4 C 4 (CF 3 ) 4 (T sP = 2 K) [50,51]. A common feature of such materials is flat organic molecules in columnar stacks.…”

Section: = 1: Tomonaga-luttinger Valence Bond Solid and Ising-néelmentioning

confidence: 99%

Another dimension: investigations of molecular magnetism using muon–spin relaxation

2013

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Observation of a Spin-Peierls Transition in a Heisenberg Antiferromagnetic Linear-Chain System

Cited by 390 publications

References 17 publications

Two-gap magnetic structure of the two-stack anion-radical salt (N-Me-3,5-Di-Me-Py)(TCNQ)2 (Py is pyridine)

Two-gap magnetic structure of the two-stack anion-radical salt (N-Me-3,5-Di-Me-Py)(TCNQ)2 (Py is pyridine)

Charge, spin, and lattice effects in the spin-Peierls ground state of MEM(TCNQ)2

Another dimension: investigations of molecular magnetism using muon–spin relaxation

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