Doping evolution of the phonon density of states and electron-lattice interaction in (formula presented)

H. J. Kang; Pengcheng Dai; D. Mandrus; R. Jin; H. A. Mook; D. T. Adroja; S. M. Bennington; S. H. Lee; J. W. Lynn

doi:10.1103/PhysRevB.66.064506

Doping evolution of the phonon density of states and electron-lattice interaction in (formula presented)

H. J. Kang, Pengcheng Dai, D. Mandrus, R. Jin, H. A. Mook, D. T. Adroja, S. M. Bennington, S. H. Lee, J. W. Lynn

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

1 Citation (Scopus)

Abstract

We use inelastic neutron scattering to study the evolution of the generalized phonon density of states (GDOS) of the n-type high- (formula presented) superconductor (formula presented) from the half-filled Mott-insulator (formula presented) to the (formula presented) superconductor (formula presented) Upon doping the (formula presented) planes in (formula presented) with electrons by Ce substitution, the most significant change in the GDOS is the softening of the highest phonon branches associated with the Cu-O bond stretching and out-of-plane oxygen vibration modes. However, most of the softening occurs within the first few percent of Ce doping, and is not related to the electron-doping-induced nonsuperconducting-superconducting transition at (formula presented) These results suggest that the electron-lattice coupling in the n-type high- (formula presented) superconductors is weaker than that in the p-type materials.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.66.064506
Publication status	Published - 2002
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.66.064506

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@article{c885834af0c7448498d131d26d6e5008,

title = "Doping evolution of the phonon density of states and electron-lattice interaction in (formula presented)",

abstract = "We use inelastic neutron scattering to study the evolution of the generalized phonon density of states (GDOS) of the n-type high- (formula presented) superconductor (formula presented) from the half-filled Mott-insulator (formula presented) to the (formula presented) superconductor (formula presented) Upon doping the (formula presented) planes in (formula presented) with electrons by Ce substitution, the most significant change in the GDOS is the softening of the highest phonon branches associated with the Cu-O bond stretching and out-of-plane oxygen vibration modes. However, most of the softening occurs within the first few percent of Ce doping, and is not related to the electron-doping-induced nonsuperconducting-superconducting transition at (formula presented) These results suggest that the electron-lattice coupling in the n-type high- (formula presented) superconductors is weaker than that in the p-type materials.",

author = "Kang, {H. J.} and Pengcheng Dai and D. Mandrus and R. Jin and Mook, {H. A.} and Adroja, {D. T.} and Bennington, {S. M.} and Lee, {S. H.} and Lynn, {J. W.}",

year = "2002",

doi = "10.1103/PhysRevB.66.064506",

language = "English",

volume = "66",

pages = "1--5",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Doping evolution of the phonon density of states and electron-lattice interaction in (formula presented)

AU - Kang, H. J.

AU - Dai, Pengcheng

AU - Mandrus, D.

AU - Jin, R.

AU - Mook, H. A.

AU - Adroja, D. T.

AU - Bennington, S. M.

AU - Lee, S. H.

AU - Lynn, J. W.

PY - 2002

Y1 - 2002

N2 - We use inelastic neutron scattering to study the evolution of the generalized phonon density of states (GDOS) of the n-type high- (formula presented) superconductor (formula presented) from the half-filled Mott-insulator (formula presented) to the (formula presented) superconductor (formula presented) Upon doping the (formula presented) planes in (formula presented) with electrons by Ce substitution, the most significant change in the GDOS is the softening of the highest phonon branches associated with the Cu-O bond stretching and out-of-plane oxygen vibration modes. However, most of the softening occurs within the first few percent of Ce doping, and is not related to the electron-doping-induced nonsuperconducting-superconducting transition at (formula presented) These results suggest that the electron-lattice coupling in the n-type high- (formula presented) superconductors is weaker than that in the p-type materials.

AB - We use inelastic neutron scattering to study the evolution of the generalized phonon density of states (GDOS) of the n-type high- (formula presented) superconductor (formula presented) from the half-filled Mott-insulator (formula presented) to the (formula presented) superconductor (formula presented) Upon doping the (formula presented) planes in (formula presented) with electrons by Ce substitution, the most significant change in the GDOS is the softening of the highest phonon branches associated with the Cu-O bond stretching and out-of-plane oxygen vibration modes. However, most of the softening occurs within the first few percent of Ce doping, and is not related to the electron-doping-induced nonsuperconducting-superconducting transition at (formula presented) These results suggest that the electron-lattice coupling in the n-type high- (formula presented) superconductors is weaker than that in the p-type materials.

UR - http://www.scopus.com/inward/record.url?scp=85038930233&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.66.064506

DO - 10.1103/PhysRevB.66.064506

M3 - Article

AN - SCOPUS:85038930233

SN - 1098-0121

VL - 66

SP - 1

EP - 5

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 6

ER -

Doping evolution of the phonon density of states and electron-lattice interaction in (formula presented)

Abstract

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