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The amplitudes and the structure of the charge density wave in YBCO.

ABSTRACT: We find unknown s- and d-wave amplitudes of the recently discovered charge density wave (CDW) in underdoped cuprates. To do so we perform a combined analysis of experimental data for ortho-II YBa₂Cu₃O_y. The analysis includes data on nuclear magnetic resonance, resonant inelastic X-ray scattering, and hard X-ray diffraction. The amplitude of doping modulation found in our analysis is 3.5?·?10^-3 in a low magnetic field and T?=?60?K, the amplitude is 6.5?·?10^-3 in a magnetic field of 30T and T?=?1.3?K. The values are in units of elementary charge per unit cell of a CuO₂ plane. We show that the data rule out a checkerboard pattern, and we also show that the data might rule out mechanisms of the CDW which do not include phonons.

SUBMITTER: Kharkov YA

PROVIDER: S-EPMC5056359 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature

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The amplitudes and the structure of the charge density wave in YBCO.

Kharkov Y A YA Sushkov O P OP

Scientific reports 20161010

We find unknown s- and d-wave amplitudes of the recently discovered charge density wave (CDW) in underdoped cuprates. To do so we perform a combined analysis of experimental data for ortho-II YBa2Cu3Oy. The analysis includes data on nuclear magnetic resonance, resonant inelastic X-ray scattering, and hard X-ray diffraction. The amplitude of doping modulation found in our analysis is 3.5 · 10-3 in a low magnetic field and T = 60 K, the amplitude is 6.5 ...[more]

PMID: 27721385

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