Photoemission Study of a Strongly Coupled Electron-Phonon System
作者： M. Hengsberger , D. Purdie , P. Segovia , M. Garnier , Y. Baer
DOI: 10.1103/PHYSREVLETT.83.592
关键词:
摘要: We present high-resolution photoemission experiments of the $\overline{\ensuremath{\Gamma}}$-surface state Be(0001). The spectral function near Fermi wave vector reveals a strong quasiparticle peak due to coupling with surface phonon modes. constant $\ensuremath{\lambda}$ is estimated be $1.18\ifmmode\pm\else\textpm\fi{}0.07$ based on renormalization effective mass. No gap was observed down 12 K. Any interpretation data charge density formation or superconductivity can therefore discarded.
harvard.edu
sci-hub.se 参考文章(29)
M. Y. Chou, Pui K. Lam, Marvin L. Cohen, Ab initio study of structural and electronic properties of beryllium Physical Review B. ,vol. 28, pp. 4179- 4185 ,(1983) , 10.1103/PHYSREVB.28.4179
Shin-ichi T. Inoue, Jiro Yamashita, Electronic Structure of Metallic Beryllium Journal of the Physical Society of Japan. ,vol. 35, pp. 677- 683 ,(1973) , 10.1143/JPSJ.35.677
E PLUMMER, J HANNON, The surfaces of beryllium Progress in Surface Science. ,vol. 46, pp. 149- 158 ,(1994) , 10.1016/0079-6816(94)90075-2
H. L. Davis, J. B. Hannon, K. B. Ray, E. W. Plummer, Anomalous interplanar expansion at the (0001) surface of Be. Physical Review Letters. ,vol. 68, pp. 2632- 2635 ,(1992) , 10.1103/PHYSREVLETT.68.2632
K. Pohl, J.-H. Cho, K. Terakura, M. Scheffler, E. W. Plummer, ANOMALOUSLY LARGE THERMAL EXPANSION AT THE (0001) SURFACE OF BERYLLIUM WITHOUT OBSERVABLE INTERLAYER ANHARMONICITY Physical Review Letters. ,vol. 80, pp. 2853- 2856 ,(1998) , 10.1103/PHYSREVLETT.80.2853
J.B. Hannon, E.W. Plummer, Shear horizontal vibrations at the (0001) surface of beryllium Journal of Electron Spectroscopy and Related Phenomena. ,vol. 64-65, pp. 683- 690 ,(1993) , 10.1016/0368-2048(93)80137-B
E.V. Chulkov, V.M. Silkin, E.N. Shirykalov, Surface electronic structure of Be(0001) and Mg(0001) Surface Science. ,vol. 188, pp. 287- 300 ,(1987) , 10.1016/S0039-6028(87)80158-9
U.O. Karlsson, S.A. Flodström, R. Engelhardt, W. Gädeke, E.E. Koch, Intrinsic surface state on Be(0 0 0 1) Solid State Communications. ,vol. 49, pp. 711- 714 ,(1984) , 10.1016/0038-1098(84)90226-6
R. A. Bartynski, E. Jensen, T. Gustafsson, E. W. Plummer, Angle-resolved photoemission investigation of the electronic structure of Be: Surface states. Physical Review B. ,vol. 32, pp. 1921- 1926 ,(1985) , 10.1103/PHYSREVB.32.1921
John Kieffer, Mechanical degradation and viscous dissipation in B2O3. Physical Review B. ,vol. 50, pp. 17- 29 ,(1994) , 10.1103/PHYSREVB.50.17