Superconductivity induced spin gap in Nd1.85Ce 0.15CuO4

D. Petitgrand; K. Yamada; M. Fujita; T. Uefuji

doi:10.1016/j.physc.2004.03.128

Superconductivity induced spin gap in Nd_1.85Ce _0.15CuO₄

D. Petitgrand, K. Yamada, M. Fujita, T. Uefuji

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

We present results of inelastic neutron scattering by magnetic excitations on the n-type high-T_c superconductor Nd_1.85Ce _0.15CuO₄ with T_c=25 K. In the normal state the dynamical susceptibility χ^″ at q₀=(12120) is gapless. As temperature is lowered below T_c, the low energy part of the spectrum is gradually depressed, and a true spin gap is observed at T=1.6 K.

Original language	English
Pages (from-to)	778-779
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	408-410
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physc.2004.03.128
Publication status	Published - 2004 Jan 1
Externally published	Yes
Event	Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil Duration: 2003 May 25 → 2003 May 30

Keywords

Electron-doped cuprate
Magnetic excitations
Neutron scattering
Spin gap

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2004.03.128

Cite this

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title = "Superconductivity induced spin gap in Nd1.85Ce 0.15CuO4 ",

abstract = "We present results of inelastic neutron scattering by magnetic excitations on the n-type high-Tc superconductor Nd1.85Ce 0.15CuO4 with Tc=25 K. In the normal state the dynamical susceptibility χ″ at q0=(12120) is gapless. As temperature is lowered below Tc, the low energy part of the spectrum is gradually depressed, and a true spin gap is observed at T=1.6 K.",

keywords = "Electron-doped cuprate, Magnetic excitations, Neutron scattering, Spin gap",

author = "D. Petitgrand and K. Yamada and M. Fujita and T. Uefuji",

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T1 - Superconductivity induced spin gap in Nd1.85Ce 0.15CuO4

AU - Petitgrand, D.

AU - Yamada, K.

AU - Fujita, M.

AU - Uefuji, T.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - We present results of inelastic neutron scattering by magnetic excitations on the n-type high-Tc superconductor Nd1.85Ce 0.15CuO4 with Tc=25 K. In the normal state the dynamical susceptibility χ″ at q0=(12120) is gapless. As temperature is lowered below Tc, the low energy part of the spectrum is gradually depressed, and a true spin gap is observed at T=1.6 K.

AB - We present results of inelastic neutron scattering by magnetic excitations on the n-type high-Tc superconductor Nd1.85Ce 0.15CuO4 with Tc=25 K. In the normal state the dynamical susceptibility χ″ at q0=(12120) is gapless. As temperature is lowered below Tc, the low energy part of the spectrum is gradually depressed, and a true spin gap is observed at T=1.6 K.

KW - Electron-doped cuprate

KW - Magnetic excitations

KW - Neutron scattering

KW - Spin gap

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