메뉴 건너뛰기




Volumn 48, Issue 17, 1993, Pages 13060-13097

Boson localization and correlated pinning of superconducting vortex arrays

Author keywords

[No Author keywords available]

Indexed keywords


EID: 7444258632     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.48.13060     Document Type: Article
Times cited : (1018)

References (106)
  • 1
    • 84927358807 scopus 로고    scopus 로고
    • See, e.g., the reviews in Phenomenology and Applications of High Temperature Superconductors, edited by K. Bedell, M. Inui, D. Meltzer, J. R. Schrieffer, and S. Doniach (Addison-Wesley, New York, 1991).
  • 15
  • 32
    • 84927358804 scopus 로고    scopus 로고
    • An alternative explanation is that the flux liquid simply becomes more entangled and viscous as its density increases with increasing field. Flux-line entanglement will prevent crystallization and produce instead a nonequilibrium but continuous ``polymer''-glass transition if the barriers to line crossing are sufficiently high. See Refs. 3 and 8. The hysterisis loops associated with first-order freezing would slowly go away as crystallization became more difficult for a fixed cooling rate. The low-temperature dynamics of this polymer glass in the presence of point disorder should be similar to that predicted by the collective pinning theory (Ref. 7), with a polymeric shear modulus replacing the usual elastic constant c66.
  • 35
    • 0000531006 scopus 로고
    • a striking enhancement of the irreversibility line (with critical currents increasing by a factor 103 at T = 77 K) has also been observed quite recently in thallium-based compounds by
    • (1992) Phys. Rev. Lett. , vol.69 , pp. 3816
    • Budhani, R.C.1    Suenaga, M.2    Liou, S.H.3
  • 36
    • 0001159308 scopus 로고
    • Flux-line pinning inBi2Sr2Ca1Cu2Oxcrystals: Interplay of intrinsic 2D behavior and irradiation-induced columnar defects
    • (1992) Physical Review Letters , vol.68 , pp. 879
    • Gerhauser, W.1
  • 48
    • 4243354178 scopus 로고
    • Early simulations of Josephson arrays stressing the importance of correlated pinning of vortices were carried out by
    • (1989) Phys. Rev. Lett. , vol.62 , pp. 320
    • Choi, J.1    Jose, J.2
  • 64
    • 84927358802 scopus 로고    scopus 로고
    • R. P. Feynman and A. R. Hibbs, Path Integrals and Quantum Mechanics (McGraw-Hill, New York, 1965); R. P. Feynman, Statistical Mechanics (Benjamin, Reading, MA, 1972).
  • 67
    • 84927358801 scopus 로고    scopus 로고
    • A. I. Baz', Ya.B. Zel'dovich, and A. M. Perelomov, Scattering, Reactions and Decay in Nonrelativistic Quantum Mechanics (Israel Program for Scientific Translations, Jerusalem, 1969).
  • 69
    • 33750142942 scopus 로고
    • A more complete treatment should lead to nonlocality in z. See, e.g.
    • (1986) Phys. Rev. B , vol.34 , pp. 6514
    • Brandt, E.H.1
  • 71
    • 84927358800 scopus 로고    scopus 로고
    • In the flux liquid, ``thick'' means sample dimensions large compared to an entanglement length so that boson statistics are applicable (Ref. 3). Deep in the Bose glass, statistics are irrelevant because the fictitious quantum ``particles'' are localized. The thickness dependence of the resistivity in this regime is discussed in Sec. IV.
  • 72
    • 84927358799 scopus 로고    scopus 로고
    • We assume line-crossing barriers are finite. Two distinct vortex lines may merge to within a coherence length of each other as z varies and then separate again in two distinct trajectories. The thermal average in (3.1) automatically includes a sum over both the ``direct'' and ``exchange'' vortex reconnection possibilities.
  • 75
    • 84927358788 scopus 로고    scopus 로고
    • A more complete treatment shows that a z-independent disorder potential increases c44; T. Hwa, P. Le Doussal, D. R. Nelson, and V. M. Vinokur (unpublished).
  • 81
    • 84927358787 scopus 로고    scopus 로고
    • Similar modifications arise for atomic wave functions in a strong magnetic field. See Chap. X of Ref. 32.
  • 84
    • 84927358786 scopus 로고    scopus 로고
    • The same analogy was applied to vortex transport in helium films by Ambegaokar et al., Phys. Rev. B 21, 1806 (1980).
  • 92
    • 84927358785 scopus 로고    scopus 로고
    • An identical argument has been made by D. S. Fisher and M. P. A. Fisher (private communication).
  • 103
    • 84927358783 scopus 로고    scopus 로고
    • If one lets the interplanar Josephson coupling in Ref. 78 tend to zero, the lattice superconductor reduces to a stack of decoupled planes. The discreteness of the underlying model then does have important consequences. It can be shown that only for fillings f < case 1 over 12 will discreteness not affect the continuous nature of the melting transition.
  • 105
    • 84927358782 scopus 로고    scopus 로고
    • Since f = case 1 over 6 in Ref. 78, results for this model in the strongly anisotropic limit are not directly applicable to the cuprate superconductors.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.