Observation of Spin-Charge Separation in One-Dimensional SrCu<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">O</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math></span>

C. Kim; A. Y. Matsuura; Z.-X. Shen; N. Motoyama; H. Eisaki; S. Uchida; T. Tohyama; S. Maekawa

doi:10.1103/PhysRevLett.77.4054

Observation of Spin-Charge Separation in One-Dimensional SrCu $O_{2}$

C. Kim, A. Y. Matsuura, Z.-X. Shen, N. Motoyama, H. Eisaki, S. Uchida, T. Tohyama, and S. Maekawa

Phys. Rev. Lett. 77, 4054 – Published 4 November 1996

Abstract

Angle-resolved photoemission data from one-dimensional SrCu $O_{2}$ compounds are found to be qualitatively different from that of two-dimensional S $r_{2}$ Cu $O_{2}$ C $l_{2}$ . The data can be quantitatively accounted for by the exact diagonalization calculation based on the t-J model. We identify the two underlying bands having approximately 1.2 and 0.3 eV energy dispersion as that of holon and spinon, with their energy scaled by t and J, respectively.

Received 29 April 1996

DOI:https://doi.org/10.1103/PhysRevLett.77.4054

Authors & Affiliations

C. Kim¹, A. Y. Matsuura¹, Z.-X. Shen¹, N. Motoyama², H. Eisaki², S. Uchida², T. Tohyama³, and S. Maekawa^4,5

¹Department of Applied Physics and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, California 94305
²Department of Superconductivity, The University of Tokyo, Yayoi 2-11-16, Bunkyo-ku, Tokyo 133, Japan
³Department of Physics, Faculty of Education, Mie University, Tsu 514, Japan
⁴Department of Applied Physics, Nagoya University, Nagoya 464-01, Japan
⁵Institute for Materials Research, Tohoku University, Sendai 980-77, Japan