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Volumn 90, Issue 24, 2003, Pages

Unveiling new magnetic phases of undoped and doped manganites

Author keywords

[No Author keywords available]

Indexed keywords

ANTIFERROMAGNETISM; CHARGE TRANSFER; ELECTRON TRANSITIONS; GROUND STATE; HAMILTONIANS; MAGNETORESISTANCE; MATHEMATICAL MODELS; NUMERICAL METHODS; PHASE DIAGRAMS; SEMICONDUCTOR DOPING;

EID: 0042812076     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article
Times cited : (78)

References (37)
  • 1
    • 0003629003 scopus 로고    scopus 로고
    • edited by Y. Tokura (Gordon & Breach, New York)
    • Colossal Magnetoresistance Oxides, edited by Y. Tokura (Gordon & Breach, New York, 2000).
    • (2000) Colossal Magnetoresistance Oxides
  • 16
    • 0043137828 scopus 로고    scopus 로고
    • cond-mat/0211568
    • T. Kimura et al., cond-mat/0211568.
    • Kimura, T.1
  • 20
    • 0042135907 scopus 로고    scopus 로고
    • note
    • g electron per site which naively may suggest insulating behavior, there are two active orbitals and the mean density per state is 1/2.
  • 21
    • 0042636892 scopus 로고    scopus 로고
    • note
    • In practice, considering sites i and i + a, the oxygen in between is allowed to move along the a axis; i.e., buckling and rotations are neglected. In the 2D case apical oxygens are assumed to be fixed [12].
  • 23
    • 0042636890 scopus 로고    scopus 로고
    • note
    • Since JT distortions suppress double occupancy, as onsite Coulomb interaction does, a robust λ mimics the effect of interorbital Coulomb repulsion. In addition, a large Hund coupling emulates a large same-orbital Hubbard U term [2] (see Ref. [14]).
  • 25
    • 0042636891 scopus 로고    scopus 로고
    • note
    • A similar mechanism has been discussed by some of the authors for the CE-type phase at x = 0.5 [8].
  • 26
    • 0038755935 scopus 로고    scopus 로고
    • note
    • The metal-insulator transition driven by JT phonons occurs at a finite value of λ in the infinite lattice [T. Hotta, Phys. Rev. B 67, 104428 (2003)].
    • (2003) Phys. Rev. B , vol.67 , pp. 104428
    • Hotta, T.1
  • 27
    • 0041634969 scopus 로고    scopus 로고
    • note
    • C for simplicity [2].
  • 28
    • 0042135905 scopus 로고    scopus 로고
    • note
    • Both spin directions and oxygen positions are optimized.
  • 29
    • 0042135906 scopus 로고    scopus 로고
    • note
    • AF manganites at x = 0.
  • 30
    • 0029322096 scopus 로고
    • note
    • Stripes in manganites establish an interesting analogy with similar physics in cuprates and nickelates [J. M. Tranquada et al., Nature (London) 375, 561 (1995)].
    • (1995) Nature (London) , vol.375 , pp. 561
    • Tranquada, J.M.1
  • 31
    • 0041634967 scopus 로고    scopus 로고
    • note
    • Further work is needed to check the stability of the structure against long-range Coulomb interactions.
  • 34
    • 0032473949 scopus 로고    scopus 로고
    • note
    • x-AFM state, emerging from the competition with the Wigner-crystal structure [8].
    • (1998) Nature (London) , vol.392 , pp. 473
    • Mori, S.1
  • 35
    • 14244270743 scopus 로고    scopus 로고
    • note
    • 4 [T. Kimura et al., Phys. Rev. B 65, 020407(R) (2001)].
    • (2001) Phys. Rev. B , vol.65 , pp. 020407
    • Kimura, T.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.