메뉴 건너뛰기




Volumn 70, Issue 7, 1993, Pages 1010-1013

Towards a quantum theory of polarization in ferroelectrics: The case of KNbO3

Author keywords

[No Author keywords available]

Indexed keywords


EID: 0001081142     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.70.1010     Document Type: Article
Times cited : (277)

References (32)
  • 1
    • 84927507125 scopus 로고    scopus 로고
    • ]{rap} Permanent address: Scuola Internazionale Superiore di Stud ^ i Avanzati (SISSA), via Beirut 4, I 34014 Trieste, Italy.
  • 2
    • 84927461071 scopus 로고    scopus 로고
    • ]{alf} Also at Dipartimento di Fisica Teorica, Università di Trieste, Strada Costiera 11, I 34014 Trieste, Italy.
  • 11
    • 84927469346 scopus 로고    scopus 로고
    • see also p. 182 in Ref. [1].
  • 14
    • 84927460456 scopus 로고    scopus 로고
    • Ferroelectrics (to be published).
    • Resta, R.1
  • 16
    • 84927505532 scopus 로고    scopus 로고
    • We previously calculated P = 1.52 ; C/m2 in the presence of a depolarizing field; using the KSV approach we get P = 4.66 ; C/m2 in a null field. The ratio of the two values, 3.07, should yield the dielectric constant varepsilon∞, whose experimental value is in fact 2.99.
  • 19
    • 84927479363 scopus 로고    scopus 로고
    • and references therein.
  • 26
    • 0022025864 scopus 로고
    • The K 3p states are treated as valence states, while the Nb 4p's are calculated with the semicore approximation following the method of
    • (1985) Solid State Commun. , vol.53 , pp. 1019
    • Koelling, D.D.1
  • 27
    • 84927485674 scopus 로고    scopus 로고
    • More technical details on the band structure computations and on the calculation of the macroscopic polarization will be published elsewhere.
  • 30
    • 84927471050 scopus 로고    scopus 로고
    • see also R. Pick and T. Takemori, in Crystalline Semiconducting Materials and Devices, edited by P. N. Butcher, N. H. March, and M. P. Tosi (Plenum, New York, 1986), p. 103.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.