Cu NMR Study of Bilayer HgBa2CaCu2O6+δ. Variation of Pseudo Spin-Gap Spectrum

Yutaka Itoh; Ayako Tokiwa-Yamamoto; Takato Machi; Keiichi Tanabe

doi:10.1143/JPSJ.67.2212

Cu NMR Study of Bilayer HgBa₂CaCu₂O_6+δ. Variation of Pseudo Spin-Gap Spectrum

Yutaka Itoh, Ayako Tokiwa-Yamamoto, Takato Machi, Keiichi Tanabe

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

11 Citations (Scopus)

Abstract

We observed the pseudo spin-gap behavior in the T-dependences of ⁶³Cu Knight shift and NMR relaxation rates, as well as electrical resistivity, over a wide doping range for the bilayer high-Tc HgBa₂CaCu₂O_6+δ using ⁶³Cu NMR spin-echo technique. We found a difference in the doping dependence of the pseudo spin-gap behavior between HgBa₂CaCu₂O_6+δ and the previous monolayer HgBa₂CuO_4+δ. The results indicate that the pseudo spin-gap behavior strongly depends on the underlying electronic states.

Original language	English
Pages (from-to)	2212-2214
Number of pages	3
Journal	Journal of the Physical Society of Japan
Volume	67
Issue number	7
DOIs	https://doi.org/10.1143/JPSJ.67.2212
Publication status	Published - 1998 Jan 1
Externally published	Yes

Keywords

HgBaCaCuO
NMR
bilayer cuprate
high T cuprate
pseudo spin-gap

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Cu NMR Study of Bilayer HgBa2CaCu2O6+δ. Variation of Pseudo Spin-Gap Spectrum",

abstract = "We observed the pseudo spin-gap behavior in the T-dependences of 63Cu Knight shift and NMR relaxation rates, as well as electrical resistivity, over a wide doping range for the bilayer high-Tc HgBa2CaCu2O6+δ using 63Cu NMR spin-echo technique. We found a difference in the doping dependence of the pseudo spin-gap behavior between HgBa2CaCu2O6+δ and the previous monolayer HgBa2CuO4+δ. The results indicate that the pseudo spin-gap behavior strongly depends on the underlying electronic states.",

keywords = "HgBaCaCuO, NMR, bilayer cuprate, high T cuprate, pseudo spin-gap",

author = "Yutaka Itoh and Ayako Tokiwa-Yamamoto and Takato Machi and Keiichi Tanabe",

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T1 - Cu NMR Study of Bilayer HgBa2CaCu2O6+δ. Variation of Pseudo Spin-Gap Spectrum

AU - Itoh, Yutaka

AU - Tokiwa-Yamamoto, Ayako

AU - Machi, Takato

AU - Tanabe, Keiichi

PY - 1998/1/1

Y1 - 1998/1/1

N2 - We observed the pseudo spin-gap behavior in the T-dependences of 63Cu Knight shift and NMR relaxation rates, as well as electrical resistivity, over a wide doping range for the bilayer high-Tc HgBa2CaCu2O6+δ using 63Cu NMR spin-echo technique. We found a difference in the doping dependence of the pseudo spin-gap behavior between HgBa2CaCu2O6+δ and the previous monolayer HgBa2CuO4+δ. The results indicate that the pseudo spin-gap behavior strongly depends on the underlying electronic states.

AB - We observed the pseudo spin-gap behavior in the T-dependences of 63Cu Knight shift and NMR relaxation rates, as well as electrical resistivity, over a wide doping range for the bilayer high-Tc HgBa2CaCu2O6+δ using 63Cu NMR spin-echo technique. We found a difference in the doping dependence of the pseudo spin-gap behavior between HgBa2CaCu2O6+δ and the previous monolayer HgBa2CuO4+δ. The results indicate that the pseudo spin-gap behavior strongly depends on the underlying electronic states.

KW - HgBaCaCuO

KW - NMR

KW - bilayer cuprate

KW - high T cuprate

KW - pseudo spin-gap

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