메뉴 건너뛰기




Volumn 12, Issue 24, 1998, Pages 2447-2454

Study on nonmagnetic impurities in the superconducting state of two-dimensional t-J model

Author keywords

[No Author keywords available]

Indexed keywords


EID: 0000105470     PISSN: 02179792     EISSN: None     Source Type: Journal    
DOI: 10.1142/S0217979298001435     Document Type: Article
Times cited : (11)

References (35)
  • 2
    • 21144466525 scopus 로고
    • T. Hotta, J. Phys. Soc. Jpn. 62, 274 (1993) 274; Phys. Rev. B52, 13041 (1995).
    • (1993) J. Phys. Soc. Jpn. , vol.62 , pp. 274
    • Hotta, T.1
  • 3
    • 0141634879 scopus 로고
    • T. Hotta, J. Phys. Soc. Jpn. 62, 274 (1993) 274; Phys. Rev. B52, 13041 (1995).
    • (1995) Phys. Rev. , vol.B52 , pp. 13041
  • 14
    • 0347940353 scopus 로고
    • N. Nagaosa and P. A. Lee, Phys. Rev. Lett. 64, 2450 (1990); P. A. Lee and N. Nagaosa, Phys. Rev. B46, 5621 (1992).
    • (1990) Phys. Rev. Lett. , vol.64 , pp. 2450
    • Nagaosa, N.1    Lee, P.A.2
  • 15
    • 0000083632 scopus 로고
    • N. Nagaosa and P. A. Lee, Phys. Rev. Lett. 64, 2450 (1990); P. A. Lee and N. Nagaosa, Phys. Rev. B46, 5621 (1992).
    • (1992) Phys. Rev. , vol.B46 , pp. 5621
    • Lee, P.A.1    Nagaosa, N.2
  • 16
    • 0001513298 scopus 로고    scopus 로고
    • S. Odashima and H. Matsumoto, Phys. Rev. B56, 126 (1997). In this paper the effect of a nonmagnetic impurity in the t-J model is studied, but not in the superconducting state.
    • (1997) Phys. Rev. , vol.B56 , pp. 126
    • Odashima, S.1    Matsumoto, H.2
  • 17
    • 85034474960 scopus 로고    scopus 로고
    • private communications
    • After the completion of this work we learned that a similar result was independently obtained by; H. Tsuchiura, Y. Tanaka, M. Ogata and S. Kashiwaya, private communications.
    • Tsuchiura, H.1    Tanaka, Y.2    Ogata, M.3    Kashiwaya, S.4
  • 19
    • 0040436013 scopus 로고    scopus 로고
    • For numerical diagonalization of matrices we have used the computer program written by H. Nishimori; TITPACK version2.
    • TITPACK Version2
    • Nishimori, H.1
  • 20
    • 85034474024 scopus 로고    scopus 로고
    • note
    • For a smaller doping rate the coherence length becomes shorter, and the effect of the impurity is well localized within the finite system considered here. The fact that the qualitative results do not depend on the doping rate implies that the finite-size effect is negligible.
  • 22
    • 0040843486 scopus 로고
    • For a review on T-breaking superconducting states, see M. Sigrist, Prog. Theor. Phys., 99, 899 (1988).
    • (1988) Prog. Theor. Phys. , vol.99 , pp. 899
    • Sigrist, M.1
  • 29
    • 0029508951 scopus 로고    scopus 로고
    • L. J. Buchholtz, M. Paumbo, D. Rainer and J. A. Sauls, J. Low. Temp. Phys. 101, 1079 (1995); ibid. 1099.
    • J. Low. Temp. Phys. , pp. 1099
  • 33
    • 0542369367 scopus 로고    scopus 로고
    • A. Himeda, M. Ogata, Y. Tanaka and S. Kashiwaya, J. Phys. Soc. Jpn. 66, 3367 (1997). In this paper the splitting of the zero-energy peak in the vortex core is found, and it was attributed to the T-violation. However this T-violation is not spontaneous, since T is explicitly broken by an external magnetic field.
    • (1997) J. Phys. Soc. Jpn. , vol.66 , pp. 3367
    • Himeda, A.1    Ogata, M.2    Tanaka, Y.3    Kashiwaya, S.4
  • 34
    • 0030529759 scopus 로고    scopus 로고
    • Y. Ohashi and S. Takada, J. Phys. Soc. Jpn. 65, 246 (1996). In this paper it was demonstrated that for T-invariant states a zero-energy bound state should appear at the impurity. Since this result was obtained in the continuum approximation the effect of staggered charge modulation was not included.
    • (1996) J. Phys. Soc. Jpn. , vol.65 , pp. 246
    • Ohashi, Y.1    Takada, S.2
  • 35
    • 0030542929 scopus 로고    scopus 로고
    • Y. Onishi, Y. Ohashi, Y. Shingaki and K. Miyake, J. Phys. Soc. Jpn. 65, 675 (1996). In this paper the effect of nonmagnetic impurities in the d-wave superconducting state of the attractive Hubbard model is studied, but the splitting of the zero-energy state for the case of single impurity was not found. Since the detailed informations such as the electron density distribution or the doping rate is not provided, it is difficult to judge what is the cause of the difference with our finding.
    • (1996) J. Phys. Soc. Jpn. , vol.65 , pp. 675
    • Onishi, Y.1    Ohashi, Y.2    Shingaki, Y.3    Miyake, K.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.