n(k) Structure and Matrix Elements in Photoemission: Results from Insulating Ca_2CuO_2Cl_2

F. Ronning, C. Kim, K. M. Shen +5

The photon energy dependence of angle-resolved photoemission data on Ca_2CuO_2Cl_2 is presented, and the role of the matrix element is investigated. It is shown that despite strong…