Photoemission Response of Bi2sr2cacu2ox - the Normal-State Anisotropy Is Intrinsic
Angle-resolved, synchrotron-radiation photoemission and low-energy electron-diffraction studies of single-crystal Bi2Sr2CaCu2Ox high-temperature superconductors establish that the  and  directions exhibit quantitatively different structural and electronic properties. Specifically, there is a superlattice modulation in the  direction, with superlattice period between 4.7 and 5.2 times the period in the  direction. Accompanying this structural difference there is a marked difference in the intensity and amount of dispersion in the two directions.
Ecole polytech fed lausanne,inst phys appl,ch-1015 lausanne,switzerland. Kelley, rj, univ wisconsin,dept phys,madison,wi 53706.
ISI Document Delivery No.: LQ989
Record created on 2006-10-03, modified on 2016-08-08