High-field Cu/La-NMR study on high-Tc cuprate La2-xBaxCuO4 (x = 0.125)

Takayuki Goto; Masakatsu Mori; Kaichiro Chiba; Takao Suzuki; Tetsuo Fukase

doi:10.1016/S0921-4526(99)02322-4

High-field Cu/La-NMR study on high-T_c cuprate La_2-xBa_xCuO₄ (x = 0.125)

Takayuki Goto, Masakatsu Mori, Kaichiro Chiba, Takao Suzuki, Tetsuo Fukase

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

1 Citation (Scopus)

Abstract

The La-based high-T_c cuprate La_2-xBa_xCuO₄ (LBCO) shows the local suppression of the superconductivity around x = 1/8. We have studied the temperature dependence of the resonance line width of Cu/La-NMR spectra for LBCO (x = 0.125). The line width of La-NMR shows an increase below 40 K, reflecting the magnetic order, while the line width of Cu-NMR does at as high as 160 K. This difference demonstrates that the broadening in Cu-spectra is brought by the inhomogeneity in the electric field gradient, suggesting that CDW exists in this system.

Original language	English
Pages (from-to)	657-658
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	284-288
Issue number	PART I
DOIs	https://doi.org/10.1016/S0921-4526(99)02322-4
Publication status	Published - 2000 Jan 1
Externally published	Yes

Keywords

1/8-problem
La BaCuO
NMR

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(99)02322-4

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abstract = "The La-based high-Tc cuprate La2-xBaxCuO4 (LBCO) shows the local suppression of the superconductivity around x = 1/8. We have studied the temperature dependence of the resonance line width of Cu/La-NMR spectra for LBCO (x = 0.125). The line width of La-NMR shows an increase below 40 K, reflecting the magnetic order, while the line width of Cu-NMR does at as high as 160 K. This difference demonstrates that the broadening in Cu-spectra is brought by the inhomogeneity in the electric field gradient, suggesting that CDW exists in this system.",

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AU - Mori, Masakatsu

AU - Chiba, Kaichiro

AU - Suzuki, Takao

AU - Fukase, Tetsuo

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AB - The La-based high-Tc cuprate La2-xBaxCuO4 (LBCO) shows the local suppression of the superconductivity around x = 1/8. We have studied the temperature dependence of the resonance line width of Cu/La-NMR spectra for LBCO (x = 0.125). The line width of La-NMR shows an increase below 40 K, reflecting the magnetic order, while the line width of Cu-NMR does at as high as 160 K. This difference demonstrates that the broadening in Cu-spectra is brought by the inhomogeneity in the electric field gradient, suggesting that CDW exists in this system.

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