Probing the Fermi surface by positron annihilation and Compton scattering
نویسندگان
چکیده
منابع مشابه
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...
متن کاملCompton scattering, positron annihilation, and the electronic properties of quantum dots
In this work we study electronic properties of quantum dots relevant to Compton scattering and positron annihilation. The system is modeled by an electron gas confined by a spherical potential of given radius and depth. Electron-electron correlations are not considered in this study. We find that the broadening of the electronic momentum density around a suitably defined Fermi momentum scales w...
متن کاملFermi surface of CeCu 2Si 2 by 2D angular correlation of positron annihilation radiation
We have carried out 2D angular correlation of positron annihilation radiation measurements on oriented single crystals of the heavy-fermion superconductor CeCu2Si2. Measurements have been made at 50 and 4 K which are above and below the Kondo temperature, TK;15 K, for this compound. The measurements show a small temperature dependence. Experimental results have been compared with linear muffin-...
متن کاملSemiempirical model of positron scattering and annihilation
A two-parameter semiempirical theory of positron scattering and annihilation is developed and used to investigate the behavior of positrons interacting with the rare gases and metal vapors. The two-parameter theory is able to do a reasonable job of reproducing existing cross section and annihilation data for the rare gases. A model-potential calculation that correctly predicts the behavior of t...
متن کاملProbing Pulsar Winds Using Inverse Compton Scattering
We investigate the effects of inverse Compton scattering by electrons and positrons in the unshocked winds of rotationally-powered binary pulsars. This process can scatter low energy target photons to produce gamma rays with energies from MeV to TeV. The binary radio pulsars PSR B1259−63 and PSR J0045−73 are both in close eccentric orbits around bright main sequence stars which provide a huge d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Low Temperature Physics
سال: 2014
ISSN: 1063-777X,1090-6517
DOI: 10.1063/1.4869588