Correlation Effects on 'Electron-Test Charge' Dielectric Functions of a Spin-polarized Electron Gas

被引：0
|
作者：
Kim, Jae-Seok [1 ]
Park, Sungkyun [1 ]
Yi, Kyung-Soo [1 ]
机构：
[1] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea
来源：
PHYSICS OF SEMICONDUCTORS: 30TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS | 2011年 / 1399卷
关键词：
spin-polarized electrons; local field corrections; electron-test charge dielectric functions; METALLIC DENSITIES;
D O I：
10.1063/1.3666564
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present correlation effects on the spin-resolved 'electron-test charge' dielectric functions epsilon(up arrow up arrow)(q) and epsilon(down arrow down arrow)(q) of a spin-polarized electron gas (SPEG). The correlation effects are included in terms of spin-dependent local-field corrections (LFCs). Numerical results of spin-resolved static dielectric functions, which are formulated with a use of self-consistent local-field corrections, are compared with those of the random-phase approximation (RPA). We show that correlation corrections suppress the dielectric screening for parallel spin carriers in an SPEG. But, the behavior of spin-polarization dependence for epsilon(up arrow up arrow)(q) and epsilon(down arrow down arrow)(q) goes in opposite directions.
引用
收藏
页数：2
相关论文
共 50 条
  • [31] Correlation energies of the high-density spin-polarized electron gas to meV accuracy
    Ruggeri, Michele
    Rios, Pablo Lopez
    Alavi, Ali
    PHYSICAL REVIEW B, 2018, 98 (16)
  • [32] Mixed charge-spin response functions of an arbitrarily polarized electron gas
    Yarlagadda, S
    SOLID STATE COMMUNICATIONS, 2000, 116 (03) : 167 - 170
  • [33] Spin excitations of the spin-polarized electron gas in semimagnetic quantum wells
    Jusserand, B
    Perez, F
    Richards, DR
    Karczewski, G
    Wojtowicz, T
    Testelin, C
    Wolverson, D
    Davies, JJ
    PHYSICAL REVIEW LETTERS, 2003, 91 (08)
  • [34] Spin waves of the spin-polarized electron gas in semimagnetic quantum wells
    Perez, F
    Jusserand, B
    Richards, D
    Karczewski, G
    PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2006, 243 (04): : 873 - 877
  • [35] Importance of resonant effects in spin-polarized electron tunneling
    Tsymbal, EY
    Pettifor, DG
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 198-99 : 146 - 148
  • [36] Dynamical Correlation Effects on Pair-correlation Functions of Spin Polarized Two-dimensional Electron Gas
    Kumar, Krishan
    Garg, Vinayak
    Moudgil, R. K.
    PROCEEDING OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN APPLIED PHYSICS & MATERIAL SCIENCE (RAM 2013), 2013, 1536 : 949 - +
  • [37] Spin effects in the screening and Auger neutralization of He+ ions in a spin-polarized electron gas
    Alducin, M
    Muiño, RD
    Juaristi, JI
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2005, 230 : 431 - 437
  • [38] Ion induced electronic excitations in a spin-polarized electron gas
    Alducin, M
    Muiño, RD
    Juaristi, JI
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2003, 203 : 83 - 88
  • [39] Excitations in a spin-polarized two-dimensional electron gas
    Kreil, Dominik
    Hobbiger, Raphael
    Drachta, Juergen T.
    Boehm, Helga M.
    PHYSICAL REVIEW B, 2015, 92 (20)
  • [40] Charge state dependent kinetic electron emission induced by slow Nq+ ions in a spin-polarized electron gas
    Vincent, R
    Juaristi, JI
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2005, 232 : 67 - 72
12345