Role of stripes in spin and charge dynamics of underdoped La{sub 2{minus}x}Sr{sub x}CuO{sub 4}

Journal Article · Mon Nov 01 04:00:00 EST 1999 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1023/A:1022568221866· OSTI ID:20012795

Tohyama, Takami; Nagai, Susumu; Shibata, Yasumasa; Maekawa, Sadamichi

The authors investigate the electronic states of underdoped La{sub 2{minus}x}SR{sub x}CuO{sub 4} (LSCO) by using a microscopic model, i.e., t-t{prime}-t{double{underscore}prime}-J model, containing charge stripes. The numerically exact diagonalization calculation is employed on small clusters. The physical properties observed in the angle-resolved photoemission and optical conductivity experiments are consistently explained in the model with vertical stripes, but not diagonal ones. These results demonstrate a crucial role of the vertical stripes in underdoped LSCO.

• Research Organization: Tohoku Univ., Sendai (JP)
• OSTI ID: 20012795
• Journal Information: Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 117; ISSN 0022-2291; ISSN JLTPAC
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CARRIER DENSITY
COPPER OXIDES
ELECTRONIC STRUCTURE
LANTHANUM OXIDES
MATHEMATICAL MODELS
STRONTIUM OXIDES
SUPERCONDUCTIVITY