Fermi surface determination from momentum density projections

Momentum density and Fermi surface of Nd 22xCe xCuO 42d

High-temperature positron two-dimensional angular correlation of annihilation radiation ~2D-ACAR! measurements have recently been succesfully applied to map parts of the Fermi surface of YBa2Cu3O72d . Using the same principle, we have been able to observe with a bulk sensitive method, the Fermi surface of Nd22xCe xCuO42d . Although positron trapping by defects and correlation effects are strong...

Magnetic momentum density, Fermi surface, and directional magnetic Compton profiles in LaSr2Mn2O7 and La1.2Sr1.8Mn2O7

P. E. Mijnarends,1,2 S. Kaprzyk,1,3 B. Barbiellini,1 Yinwan Li,4,5 J. F. Mitchell,5 P. A. Montano,4,6 and A. Bansil1 1Physics Department, Northeastern University, Boston, Massachusetts 02115, USA 2Department of Radiation, Radionuclides & Reactors, Faculty of Applied Sciences, Delft University of Technology, Delft, The Netherlands 3Academy of Mining and Metallurgy AGH, 30059 Krakow, Poland 4Depa...

Bulk Fermi surface and momentum density in heavily doped La2−xSrxCuO4 using high-resolution Compton scattering and positron annihilation spectroscopies

W. Al-Sawai,1 B. Barbiellini,1 Y. Sakurai,2 M. Itou,2 P. E. Mijnarends,1,3 R. S. Markiewicz,1 S. Kaprzyk,1,4 S. Wakimoto,5 M. Fujita,6 S. Basak,1 H. Lin,1 Yung Jui Wang,1 S. W. H. Eijt,3 H. Schut,3 K. Yamada,6,7 and A. Bansil1 1Department of Physics, Northeastern University, Boston, Massachusetts 02115, USA 2Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo, Hy...

Angle-scanned photoemission: Fermi surface mapping and structural determination

A brief survey of the angle-scanned photoemission technique is given. It incorporates two complementary methods in one: (1) Mapping of X-ray excited photoelectron intensities over virtually the complete hemisphere above the sample surface results in extended data sets where important surface-geometrical structure information is extracted and even ‘‘fingerprinting’’ is possible. This method is k...

Spin density wave order, topological order, and Fermi surface reconstruction