Probing the singlet character of the two-hole states in cuprate superconductors

G. Ghiringhelli, N. B. Brookes, L. H. Tjeng, Takashi Mizokawa, O. Tjernberg, P. G. Steeneken, A. A. Menovsky

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Using spin-resolved resonant photoemission we have probed the singlet vs. triplet character of the two-hole state in the layered cuprates Bi2Sr2CaCu2O8+δ, La2-xSrxCuO4 and Sr2CuO2Cl2. The combination of the photon circular polarization with the photoelectron spin detection gives access to the character of the photoemission final states, which correspond to the two-hole configurations localized at a (CuO4) site. In particular, the lowest energy state is found to have a very high singlet character in all the measured compounds. This can be considered as a strong indication of the existence and stability of the so-called Zhang-Rice singlets in the layered cuprates.

Original languageEnglish
Pages (from-to)34-35
Number of pages2
JournalPhysica B: Condensed Matter
Volume312-313
DOIs
Publication statusPublished - 2002 Mar
Externally publishedYes

Fingerprint

Photoemission
cuprates
photoelectric emission
Circular polarization
rice
circular polarization
Photoelectrons
Electron energy levels
indication
photoelectrons
Photons
photons
configurations
Cuprate superconductors
energy

Keywords

  • Cuprate
  • Photoemission
  • Zhang-Rice singlet

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Ghiringhelli, G., Brookes, N. B., Tjeng, L. H., Mizokawa, T., Tjernberg, O., Steeneken, P. G., & Menovsky, A. A. (2002). Probing the singlet character of the two-hole states in cuprate superconductors. Physica B: Condensed Matter, 312-313, 34-35. https://doi.org/10.1016/S0921-4526(01)01488-0

Probing the singlet character of the two-hole states in cuprate superconductors. / Ghiringhelli, G.; Brookes, N. B.; Tjeng, L. H.; Mizokawa, Takashi; Tjernberg, O.; Steeneken, P. G.; Menovsky, A. A.

In: Physica B: Condensed Matter, Vol. 312-313, 03.2002, p. 34-35.

Research output: Contribution to journalArticle

Ghiringhelli, G, Brookes, NB, Tjeng, LH, Mizokawa, T, Tjernberg, O, Steeneken, PG & Menovsky, AA 2002, 'Probing the singlet character of the two-hole states in cuprate superconductors', Physica B: Condensed Matter, vol. 312-313, pp. 34-35. https://doi.org/10.1016/S0921-4526(01)01488-0
Ghiringhelli, G. ; Brookes, N. B. ; Tjeng, L. H. ; Mizokawa, Takashi ; Tjernberg, O. ; Steeneken, P. G. ; Menovsky, A. A. / Probing the singlet character of the two-hole states in cuprate superconductors. In: Physica B: Condensed Matter. 2002 ; Vol. 312-313. pp. 34-35.
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