Spin-Peierls transition in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>S</mml:mi><mml:mo>=</mml:mo><mml:mfrac><mml:mrow><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:mfrac></mml:mrow></mml:math>compound TiPO<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow /><mml:mrow><mml:mn>4</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>featuring large intrachain coupling

Law, J. M.; Hoch, Constantin; Glaum, Robert; Heinmaa, Ivo; Stern, Raivo; Kang, Jin Kyu; Lee, C.; Whangbo, Myung‐Hwan; Kremer, Reinhard K.

doi:10.1103/physrevb.83.180414

Cited by 35 publications

(39 citation statements)

References 39 publications

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“…This observation is in accordance with previous NMR studies. 12 Focusing on the magnetic excitations in TiPO 4 , we observe a temperature dependent scattering contribution (see Fig. 5, left panel) that is superimposed onto a broad continuum (see Fig.…”

Section: 18mentioning

confidence: 86%

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Lattice and orbital fluctuations in TiPO4

et al. 2013

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In the s = 1/2 antiferromagnetic spin chain material TiPO4 the formation of a spin gap takes place in a two step process with two characteristic temperatures, T * = 111 K and TSP = 74 K. We observe an unusual lattice dynamics over a large temperature regime as well as evidence for an orbital instability preceding the spin-Peierls transition. We relate different intrachain exchange interactions of the high temperature compared to the spin-Peierls phase to a modification of the orbital ordering pattern. In particular, our observation of a high energy excitation of mixed electronic and lattice origin suggests an exotic dimerization process different from other spin-Peierls materials.

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Section: 18mentioning

confidence: 86%

“…Recently, Law et al, 12 reported a SP transition at T SP = 74 K in the antiferromagnetic quasi 1D s = 1/2 system TiPO 4 . TiPO 4 contains TiO 6 octahedra forming uniform chains along the crystallographic c axis via shared edges (space group Cmcm).…”

Section: 1011mentioning

confidence: 99%

Lattice and orbital fluctuations in TiPO4

et al. 2013

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“…Such compounds were recently shown to exhibit exotic magnetic groundstates. [19][20][21][22] Here, we report on the magnetic and ME properties of another member of this structure-type, CuCrO 4 . Our density functional calculations indicate J nn to be about twice as strong as J nnn putting CuCrO 4 in the vicinity of the Majumdar-Ghosh point for which the ground state can by exactly solved.…”

Section: -18mentioning

confidence: 99%

Quasi-one-dimensional antiferromagnetism and multiferroicity in CuCrO4

et al. 2011

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The bulk magnetic properties of the new quasi-one-dimensional Heisenberg antiferromagnet, CuCrO4, were characterized by magnetic susceptibility, heat capacity, optical spectroscopy, EPR and dielectric capacitance measurements and density functional evaluations of the intra-and inter-chain spin exchange interactions. We found type-II multiferroicity below the Néel temperature of 8.2(5) K, arising from competing antiferromagnetic nearest-neighbor (Jnn) and next-nearest-neighbor (Jnnn) intra-chain spin exchange interactions. Experimental and theoretical results indicate that the ratio Jnn/Jnnn is close to 2, putting CuCrO4 in the vicinity of the Majumdar-Ghosh point.

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“…In fact, within these types of CT materials where the electron is delocalized across a dimer, strong magnetoelectric coupling has been observed where the samples show multiferroic behavior [19,20]. An extensive study has also been conducted on CuGeO 3 , a famous inorganic SP material [21][22][23] that shows well documented 3D ordering associated with T SP [24], as do other examples such as TiPO 4 [25] and NaV 2 O 5 [26].…”

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confidence: 99%

Tuneability and criticality in a three-dimensional stacked molecular system

et al. 2016

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Spin-Peierls transition in theS=12compound TiPO4featuring large intrachain coupling

Cited by 35 publications

References 39 publications

Lattice and orbital fluctuations in TiPO4

Lattice and orbital fluctuations in TiPO4

Quasi-one-dimensional antiferromagnetism and multiferroicity in CuCrO4

Tuneability and criticality in a three-dimensional stacked molecular system

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