Surface and image-potential states on MgB2(0001) surfaces -: art. no. 172512

被引：31
|
作者：
Silkin, VM [1 ]
Chulkov, EV
Echenique, PM
机构：
[1] DIPC, San Sebastian 20018, Spain
[2] Univ Pais Vasco Euskal Herriko Unibertsitatea, Fac Ciencias Quim, Dept Fis Mat, San Sebastian 20018, Basque Country, Spain
[3] Univ Pais Vasco Euskal Herriko Unibertsitatea, Fac Ciencias Quim, Ctr Mixto CSIC UPV EHU, San Sebastian 20018, Basque Country, Spain
来源：
PHYSICAL REVIEW B | 2001年 / 64卷 / 17期
关键词：
D O I：
10.1103/PhysRevB.64.172512
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present self-consistent pseudopotential calculations of surface and image-potential states on MgB2(0001) for both B-terminated (B-t) and Mg-terminated (Mg-t) surfaces. We find a variety of very clear surface and subsurface states as well as resonance image-potential states n = 1,2 on both surfaces. The surface layer density of states (DOS) at EF is increased by 55% at the B-t and by 90% at the Mg-t surface compared to DOS in the corresponding bulk layers.
引用
收藏
页数：4
相关论文
共 50 条
  • [21] Thermal transport properties of MgB2 -: art. no. 020505
    Muranaka, T
    Akimitsu, J
    Sera, M
    PHYSICAL REVIEW B, 2001, 64 (02)
  • [22] Andreev reflections on a MgB2 superconductor -: art. no. 012513
    Aswal, DK
    Sen, S
    Gadkari, SC
    Singh, A
    Gupta, SK
    Gupta, LC
    Bajpai, A
    Nigam, AK
    PHYSICAL REVIEW B, 2002, 66 (01) : 125131 - 125134
  • [23] Terahertz surface impedance of epitaxial MgB2 thin film -: art. no. 092503
    Jin, BB
    Kuzel, P
    Kadlec, F
    Dahm, T
    Redwing, JM
    Pogrebnyakov, AV
    Xi, XX
    Klein, N
    APPLIED PHYSICS LETTERS, 2005, 87 (09)
  • [24] Surface contribution to the superconducting properties of MgB2 single crystals -: art. no. 172502
    Rydh, A
    Welp, U
    Hiller, JM
    Koshelev, AE
    Kwok, WK
    Crabtree, GW
    Kim, KHP
    Kim, KH
    Jung, CU
    Lee, HS
    Kang, B
    Lee, SI
    PHYSICAL REVIEW B, 2003, 68 (17)
  • [25] Electron-phonon interaction in the normal and superconducting states of MgB2 -: art. no. 020501
    Kong, Y
    Dolgov, OV
    Jepsen, O
    Andersen, OK
    PHYSICAL REVIEW B, 2001, 64 (02)
  • [26] Josephson effect in MgB2 break junctions -: art. no. 097001
    Gonnelli, RS
    Calzolari, A
    Daghero, D
    Ummarino, GA
    Stepanov, VA
    Giunchi, G
    Ceresara, S
    Ripamonti, G
    PHYSICAL REVIEW LETTERS, 2001, 87 (09) : 970011 - 970014
  • [27] Pressure and isotope effect on the anisotropy of MgB2 -: art. no. 054501
    Schneider, T
    Di Castro, D
    PHYSICAL REVIEW B, 2005, 72 (05)
  • [28] Tunneling spectroscopy of the superconducting gap in MgB2 -: art. no. 094504
    Ekino, T
    Takasaki, T
    Muranaka, T
    Akimitsu, J
    Fujii, H
    PHYSICAL REVIEW B, 2003, 67 (09)
  • [29] Dielectric functions and collective excitations in MgB2 -: art. no. 180507
    Zhukov, VP
    Silkin, VM
    Chulkov, EV
    Echenique, PM
    PHYSICAL REVIEW B, 2001, 64 (18)
  • [30] Coherence lengths and anisotropy in MgB2 superconductor -: art. no. 020507
    Dulcic, A
    Pozek, M
    Paar, D
    Choi, EM
    Kim, HJ
    Kang, WN
    Lee, SI
    PHYSICAL REVIEW B, 2003, 67 (02)
12345