Electron coherence and pairing correlations in the 2D correlated electron system

Hirokazu Tsunetsugi; Masatoshi Imada

doi:10.1016/S0921-4526(99)00842-X

Electron coherence and pairing correlations in the 2D correlated electron system

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

Abstract

Single-electron spectral function and d-wave pairing correlations are calculated for the 2D t-J model by exact diagonalization including distant single-electron hoppings and three-site pair hoppings. We show that the (π, 0)-level position has a substantial effect on the pairing correlations. It is also suggested that the experimentally observed deep (π, 0)-level is due to the pairing interaction itself. We demonstrate that further enhancement of superconductivity could be achieved by the level tuning through distant hoppings.

Original language	English
Pages (from-to)	790-791
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	281-282
DOIs	https://doi.org/10.1016/S0921-4526(99)00842-X
Publication status	Published - 2000 Jun 1
Externally published	Yes
Event	Yamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99) - Nagano, Jpn Duration: 1999 Aug 24 → 1999 Aug 28

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)00842-X

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title = "Electron coherence and pairing correlations in the 2D correlated electron system",

abstract = "Single-electron spectral function and d-wave pairing correlations are calculated for the 2D t-J model by exact diagonalization including distant single-electron hoppings and three-site pair hoppings. We show that the (π, 0)-level position has a substantial effect on the pairing correlations. It is also suggested that the experimentally observed deep (π, 0)-level is due to the pairing interaction itself. We demonstrate that further enhancement of superconductivity could be achieved by the level tuning through distant hoppings.",

author = "Hirokazu Tsunetsugi and Masatoshi Imada",

year = "2000",

month = jun,

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doi = "10.1016/S0921-4526(99)00842-X",

language = "English",

volume = "281-282",

pages = "790--791",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

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T1 - Electron coherence and pairing correlations in the 2D correlated electron system

AU - Tsunetsugi, Hirokazu

AU - Imada, Masatoshi

PY - 2000/6/1

Y1 - 2000/6/1

N2 - Single-electron spectral function and d-wave pairing correlations are calculated for the 2D t-J model by exact diagonalization including distant single-electron hoppings and three-site pair hoppings. We show that the (π, 0)-level position has a substantial effect on the pairing correlations. It is also suggested that the experimentally observed deep (π, 0)-level is due to the pairing interaction itself. We demonstrate that further enhancement of superconductivity could be achieved by the level tuning through distant hoppings.

AB - Single-electron spectral function and d-wave pairing correlations are calculated for the 2D t-J model by exact diagonalization including distant single-electron hoppings and three-site pair hoppings. We show that the (π, 0)-level position has a substantial effect on the pairing correlations. It is also suggested that the experimentally observed deep (π, 0)-level is due to the pairing interaction itself. We demonstrate that further enhancement of superconductivity could be achieved by the level tuning through distant hoppings.

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U2 - 10.1016/S0921-4526(99)00842-X

DO - 10.1016/S0921-4526(99)00842-X

M3 - Conference article

AN - SCOPUS:0033878355

SN - 0921-4526

VL - 281-282

SP - 790

EP - 791

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - Yamada Conference LI - The International Conference on Strongly Correlated Electron Systems (SCES '99)

Y2 - 24 August 1999 through 28 August 1999

ER -

Electron coherence and pairing correlations in the 2D correlated electron system

Abstract

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