Quantum criticality in the coupled two-leg spin ladder Ba2CuTeO6

A. Glamazda; Y. S. Choi; S. H. Do; S. Lee; P. Lemmens; A. N. Ponomaryov; S. A. Zvyagin; J. Wosnitza; Dita Puspita Sari; I. Watanabe; K. Y. Choi

doi:10.1103/PhysRevB.95.184430

Quantum criticality in the coupled two-leg spin ladder Ba2CuTeO6

A. Glamazda, Y. S. Choi, S. H. Do, S. Lee, P. Lemmens, A. N. Ponomaryov, S. A. Zvyagin, J. Wosnitza, Dita Puspita Sari, I. Watanabe, K. Y. Choi

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We report on zero-field muon spin rotation, electron-spin resonance, and polarized Raman scattering measurements of the coupled quantum spin ladder Ba2CuTeO6. Zero-field muon spin rotation and electron-spin resonance probes disclose a successive crossover from a paramagnetic through a spin-liquid-like into a magnetically ordered state with decreasing temperature. More significantly, the two-magnon Raman response obeys a T-linear scaling relation in its peak energy, linewidth, and intensity. This critical scaling behavior presents an experimental signature of proximity to a quantum-critical point from an ordered side in Ba2CuTeO6.

Original language	English
Article number	184430
Journal	Physical Review B
Volume	95
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.95.184430
Publication status	Published - 2017 May 30
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.95.184430

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title = "Quantum criticality in the coupled two-leg spin ladder Ba2CuTeO6",

abstract = "We report on zero-field muon spin rotation, electron-spin resonance, and polarized Raman scattering measurements of the coupled quantum spin ladder Ba2CuTeO6. Zero-field muon spin rotation and electron-spin resonance probes disclose a successive crossover from a paramagnetic through a spin-liquid-like into a magnetically ordered state with decreasing temperature. More significantly, the two-magnon Raman response obeys a T-linear scaling relation in its peak energy, linewidth, and intensity. This critical scaling behavior presents an experimental signature of proximity to a quantum-critical point from an ordered side in Ba2CuTeO6.",

author = "A. Glamazda and Choi, {Y. S.} and Do, {S. H.} and S. Lee and P. Lemmens and Ponomaryov, {A. N.} and Zvyagin, {S. A.} and J. Wosnitza and Sari, {Dita Puspita} and I. Watanabe and Choi, {K. Y.}",

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doi = "10.1103/PhysRevB.95.184430",

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T1 - Quantum criticality in the coupled two-leg spin ladder Ba2CuTeO6

AU - Glamazda, A.

AU - Choi, Y. S.

AU - Do, S. H.

AU - Lee, S.

AU - Lemmens, P.

AU - Ponomaryov, A. N.

AU - Zvyagin, S. A.

AU - Wosnitza, J.

AU - Sari, Dita Puspita

AU - Watanabe, I.

AU - Choi, K. Y.

PY - 2017/5/30

Y1 - 2017/5/30

N2 - We report on zero-field muon spin rotation, electron-spin resonance, and polarized Raman scattering measurements of the coupled quantum spin ladder Ba2CuTeO6. Zero-field muon spin rotation and electron-spin resonance probes disclose a successive crossover from a paramagnetic through a spin-liquid-like into a magnetically ordered state with decreasing temperature. More significantly, the two-magnon Raman response obeys a T-linear scaling relation in its peak energy, linewidth, and intensity. This critical scaling behavior presents an experimental signature of proximity to a quantum-critical point from an ordered side in Ba2CuTeO6.

AB - We report on zero-field muon spin rotation, electron-spin resonance, and polarized Raman scattering measurements of the coupled quantum spin ladder Ba2CuTeO6. Zero-field muon spin rotation and electron-spin resonance probes disclose a successive crossover from a paramagnetic through a spin-liquid-like into a magnetically ordered state with decreasing temperature. More significantly, the two-magnon Raman response obeys a T-linear scaling relation in its peak energy, linewidth, and intensity. This critical scaling behavior presents an experimental signature of proximity to a quantum-critical point from an ordered side in Ba2CuTeO6.

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Quantum criticality in the coupled two-leg spin ladder Ba2CuTeO6

Abstract

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