We present a study of the topology of the normal state Fermi surface (FS) of the high Tc superconductor Bi2Sr2CaCu2O8−δ (Bi2212) using angle-resolved photoemission. We present FS mapping experiments, recorded using unpolarised radiation with high (E, k) resolution, and an extremely dense sampling of k-space. In addition, synchrotron radiation-based ARPES has been used to prove the energy independence of the FS as seen by photoemission. We resolve the current controversy regarding the normal state FS in Bi2212. The true picture is simple, self-consistent and robust: the FS is hole-like, with the form of rounded tubes centred on the corners of the Brillouin zone. Two further types of features are also clearly observed: shadow FSs, and diffraction replicas of the main FS caused by passage of the photoelectrons through the modulated BiO planes.
|Number of pages||4|
|Journal||Physica C Superconductivity|
|Issue number||Part 4|
|Publication status||Published - 1 Nov 2000|
|Event||International Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors, 6th - , United Kingdom|
Duration: 1 Jan 2000 → …