Here we report use of angle scanning photoemission spectroscopy using polarized synchrotron light to explore the Fermi surface topology of Bi2Sr2CaCu2O8+/-delta (Bi2212) superconductors. The measurements were made in different experimental geometry to take care of the polarization dependence of photoemission transition probability (matrix element effect) and discriminate the true features along the high symmetry directions. We find an asymmetric suppression of spectral weight around M(pi ,0) point indicating coupling of the itinerant carriers with an incommensurate charge density wave (ICDW) i.e. stripes, involving modulation of the orbital momentum.
On the topological features at the Fermi surface of Bi2212 system revealed by angle scanning photoemission / Saini, Naurang Lal; Bianconi, Antonio; A., Lanzara; J., Avila; M. C., Asensio; S., Tajima; G. D., Gu; N., Koshizuka. - In: PHYSICA. C, SUPERCONDUCTIVITY. - ISSN 0921-4534. - STAMPA. - 341-348:(2000), pp. 2071-2074. [10.1016/S0921-4534(00)01046-7]
On the topological features at the Fermi surface of Bi2212 system revealed by angle scanning photoemission
SAINI, Naurang Lal;BIANCONI, Antonio;
2000
Abstract
Here we report use of angle scanning photoemission spectroscopy using polarized synchrotron light to explore the Fermi surface topology of Bi2Sr2CaCu2O8+/-delta (Bi2212) superconductors. The measurements were made in different experimental geometry to take care of the polarization dependence of photoemission transition probability (matrix element effect) and discriminate the true features along the high symmetry directions. We find an asymmetric suppression of spectral weight around M(pi ,0) point indicating coupling of the itinerant carriers with an incommensurate charge density wave (ICDW) i.e. stripes, involving modulation of the orbital momentum.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.