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Volumn 95, Issue 1, 2004, Pages 199-203

Diagnosis and location of pinhole defects in tunnel junctions using only electrical measurements

Author keywords

[No Author keywords available]

Indexed keywords

CURRENT DENSITY; DEFECTS; ELECTRIC RESISTANCE MEASUREMENT; INVERSE PROBLEMS; LINEAR EQUATIONS; MAGNETORESISTANCE; MONTE CARLO METHODS; VOLTAGE MEASUREMENT;

EID: 0942290067     PISSN: 00218979     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1631073     Document Type: Article
Times cited : (7)

References (35)
  • 18
    • 0942302767 scopus 로고    scopus 로고
    • note
    • Reference 12 provides a theoretical mechanism by which pinholes would not detract from magnetoresistance, although several experimental investigations (e.g., Refs. 8, 14, 15, and 16) do see a large effect.
  • 25
    • 0942270327 scopus 로고    scopus 로고
    • note
    • c except in the corners (see Fig. 4).
  • 30
    • 0942302765 scopus 로고    scopus 로고
    • note
    • In the combinations (2), the errors are correlated rather than independent, so we apply an error σ=0.5% instead of twice this value.
  • 31
    • 0942270325 scopus 로고    scopus 로고
    • note
    • p drops out of Eq. (2), so only the pinhole position varies. Computing the resistances for all possible positions of a pinhole on a discrete grid does not take more than a few minutes on a modern workstation. If much greater precision were required (and if it were justified by smaller uncertainties), the relatively coarse-grained result from this "brute-force" strategy could be refined using the Levenberg-Marquardt or a related algorithm.
  • 34
    • 0942292063 scopus 로고    scopus 로고
    • preprint (2003), cond-mat/0308239
    • Z.-S. Zhang and D. A. Rabson, preprint (2003), cond-mat/0308239.
    • Zhang, Z.-S.1    Rabson, D.A.2
  • 35
    • 0042776987 scopus 로고
    • As an example of a quantum-many-body investigation of a four-terminal measurement, consider S. Hershfield and V. Ambegaokar, Phys. Rev. B 38, 7909 (1989).
    • (1989) Phys. Rev. B , vol.38 , pp. 7909
    • Hershfield, S.1    Ambegaokar, V.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.