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Title: Fermi surface measurements in YBa sub 2 Cu sub 3 O sub 7-x and La sub 1. 874 Sr sub. 126 CuO sub 4

Abstract

We report new, ultra high precision measurements of the electron-positron momentum spectra of YBa{sub 2}Cu{sub 3}O{sub 7-x} and La{sub 1.874}Sr{sub 126}CuO{sub 4}. The YBCO experiments were performed on twin free, single crystals and show discontinuities with the symmetry of the Fermi surface of the CuO chain bands. Conduction band and underlying features in LSCO share the same symmetry and can only be separated with the aid of LDA calculations. 5 refs., 3 figs.

Authors:
; ; ;  [1]; ; ; ;  [2]; ;  [3];  [4];  [5]
  1. Lawrence Livermore National Lab., CA (United States)
  2. Texas Univ., Arlington, TX (United States)
  3. California Univ., Davis, CA (United States)
  4. Yamanashi Univ., Kofu (Japan)
  5. Tokyo Univ. (Japan)
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Org.:
USDOE; RAWF; USDOE, Washington, DC (United States); Welch (Robert A.) Foundation, Houston, TX (United States)
OSTI Identifier:
5565958
Report Number(s):
UCRL-JC-107009; CONF-910736-15
ON: DE91017094
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: International conference on materials and mechanisms of superconductivity, Kanazawa (Japan), 22-26 Jul 1991
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; HIGH-TC SUPERCONDUCTORS; FERMI LEVEL; ANNIHILATION; BARIUM OXIDES; COPPER OXIDES; CRYSTALS; ELECTRON-POSITRON COLLISIONS; LANTHANUM OXIDES; STRONTIUM OXIDES; YTTRIUM OXIDES; ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; BASIC INTERACTIONS; CHALCOGENIDES; COLLISIONS; COPPER COMPOUNDS; ELECTROMAGNETIC INTERACTIONS; ELECTRON COLLISIONS; ENERGY LEVELS; INTERACTIONS; LANTHANUM COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PARTICLE INTERACTIONS; POSITRON COLLISIONS; RARE EARTH COMPOUNDS; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; 360204* - Ceramics, Cermets, & Refractories- Physical Properties; 656100 - Condensed Matter Physics- Superconductivity

Citation Formats

Howell, R H, Sterne, P A, Solal, F, Fluss, M J, Haghighi, H, Kaiser, J H, Rayner, S L, West, R N, Liu, J Z, Shelton, R, Kojima, H, and Kitazawa, K. Fermi surface measurements in YBa sub 2 Cu sub 3 O sub 7-x and La sub 1. 874 Sr sub. 126 CuO sub 4. United States: N. p., 1991. Web.
Howell, R H, Sterne, P A, Solal, F, Fluss, M J, Haghighi, H, Kaiser, J H, Rayner, S L, West, R N, Liu, J Z, Shelton, R, Kojima, H, & Kitazawa, K. Fermi surface measurements in YBa sub 2 Cu sub 3 O sub 7-x and La sub 1. 874 Sr sub. 126 CuO sub 4. United States.
Howell, R H, Sterne, P A, Solal, F, Fluss, M J, Haghighi, H, Kaiser, J H, Rayner, S L, West, R N, Liu, J Z, Shelton, R, Kojima, H, and Kitazawa, K. 1991. "Fermi surface measurements in YBa sub 2 Cu sub 3 O sub 7-x and La sub 1. 874 Sr sub. 126 CuO sub 4". United States.
@article{osti_5565958,
title = {Fermi surface measurements in YBa sub 2 Cu sub 3 O sub 7-x and La sub 1. 874 Sr sub. 126 CuO sub 4},
author = {Howell, R H and Sterne, P A and Solal, F and Fluss, M J and Haghighi, H and Kaiser, J H and Rayner, S L and West, R N and Liu, J Z and Shelton, R and Kojima, H and Kitazawa, K},
abstractNote = {We report new, ultra high precision measurements of the electron-positron momentum spectra of YBa{sub 2}Cu{sub 3}O{sub 7-x} and La{sub 1.874}Sr{sub 126}CuO{sub 4}. The YBCO experiments were performed on twin free, single crystals and show discontinuities with the symmetry of the Fermi surface of the CuO chain bands. Conduction band and underlying features in LSCO share the same symmetry and can only be separated with the aid of LDA calculations. 5 refs., 3 figs.},
doi = {},
url = {https://www.osti.gov/biblio/5565958}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 25 00:00:00 EDT 1991},
month = {Tue Jun 25 00:00:00 EDT 1991}
}

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