Operator projection theory for electron differentiation in underdoped cuprate superconductors

Shigeki Onoda, Masatoshi Imada

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

Metals approaching the Mott insulator generate a new hierarchy in the electronic structure accompanied by an electron differentiation with emergence of strongly momentum dependent structure, beyond the Mott-Hubbard, Brinkman-Rice and Slater pictures of the Mott transition. To consider such nonlinear phenomenon, we develop an analytic nonperturbative theory based on operator projections combined with a self-consistent treatment of the low-energy excitations. This reproduces the Hubbard bands, Mott gap, spin fluctuations, mass divergence, diverging charge compressibility, and strongly renormalized flat and damped dispersion similar to angle-resolved photoemission data in high-Tc cuprates. Electronic spectra show a remarkable similarity to numerical results.

Original languageEnglish
Pages (from-to)2225-2231
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume63
Issue number12
DOIs
Publication statusPublished - 2002 Dec 1
Externally publishedYes
EventSNS 2001 - Chicago, IL, United States
Duration: 2001 May 132002 May 17

Fingerprint

Spin fluctuations
Excitation energy
Photoemission
rice
Compressibility
electronic spectra
cuprates
compressibility
hierarchies
Electronic structure
Momentum
divergence
Energy gap
photoelectric emission
projection
Metals
insulators
electronic structure
momentum
operators

Keywords

  • High-T cuprate superconductors
  • Metal-insulator transition
  • Projection operator

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Operator projection theory for electron differentiation in underdoped cuprate superconductors. / Onoda, Shigeki; Imada, Masatoshi.

In: Journal of Physics and Chemistry of Solids, Vol. 63, No. 12, 01.12.2002, p. 2225-2231.

Research output: Contribution to journalConference article

@article{877ac2eca0504d62a463b20a7da8db42,
title = "Operator projection theory for electron differentiation in underdoped cuprate superconductors",
abstract = "Metals approaching the Mott insulator generate a new hierarchy in the electronic structure accompanied by an electron differentiation with emergence of strongly momentum dependent structure, beyond the Mott-Hubbard, Brinkman-Rice and Slater pictures of the Mott transition. To consider such nonlinear phenomenon, we develop an analytic nonperturbative theory based on operator projections combined with a self-consistent treatment of the low-energy excitations. This reproduces the Hubbard bands, Mott gap, spin fluctuations, mass divergence, diverging charge compressibility, and strongly renormalized flat and damped dispersion similar to angle-resolved photoemission data in high-Tc cuprates. Electronic spectra show a remarkable similarity to numerical results.",
keywords = "High-T cuprate superconductors, Metal-insulator transition, Projection operator",
author = "Shigeki Onoda and Masatoshi Imada",
year = "2002",
month = "12",
day = "1",
doi = "10.1016/S0022-3697(02)00248-2",
language = "English",
volume = "63",
pages = "2225--2231",
journal = "Journal of Physics and Chemistry of Solids",
issn = "0022-3697",
publisher = "Elsevier Limited",
number = "12",

}

TY - JOUR

T1 - Operator projection theory for electron differentiation in underdoped cuprate superconductors

AU - Onoda, Shigeki

AU - Imada, Masatoshi

PY - 2002/12/1

Y1 - 2002/12/1

N2 - Metals approaching the Mott insulator generate a new hierarchy in the electronic structure accompanied by an electron differentiation with emergence of strongly momentum dependent structure, beyond the Mott-Hubbard, Brinkman-Rice and Slater pictures of the Mott transition. To consider such nonlinear phenomenon, we develop an analytic nonperturbative theory based on operator projections combined with a self-consistent treatment of the low-energy excitations. This reproduces the Hubbard bands, Mott gap, spin fluctuations, mass divergence, diverging charge compressibility, and strongly renormalized flat and damped dispersion similar to angle-resolved photoemission data in high-Tc cuprates. Electronic spectra show a remarkable similarity to numerical results.

AB - Metals approaching the Mott insulator generate a new hierarchy in the electronic structure accompanied by an electron differentiation with emergence of strongly momentum dependent structure, beyond the Mott-Hubbard, Brinkman-Rice and Slater pictures of the Mott transition. To consider such nonlinear phenomenon, we develop an analytic nonperturbative theory based on operator projections combined with a self-consistent treatment of the low-energy excitations. This reproduces the Hubbard bands, Mott gap, spin fluctuations, mass divergence, diverging charge compressibility, and strongly renormalized flat and damped dispersion similar to angle-resolved photoemission data in high-Tc cuprates. Electronic spectra show a remarkable similarity to numerical results.

KW - High-T cuprate superconductors

KW - Metal-insulator transition

KW - Projection operator

UR - http://www.scopus.com/inward/record.url?scp=0036903075&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036903075&partnerID=8YFLogxK

U2 - 10.1016/S0022-3697(02)00248-2

DO - 10.1016/S0022-3697(02)00248-2

M3 - Conference article

AN - SCOPUS:0036903075

VL - 63

SP - 2225

EP - 2231

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

SN - 0022-3697

IS - 12

ER -