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Volumn 54, Issue 1, 1996, Pages 244-254

Anomalous temperature dependence of the first diffraction peak in vitreous boron trioxide

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EID: 0040624157     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.54.244     Document Type: Article
Times cited : (7)

References (35)
  • 5
    • 0019634576 scopus 로고
    • A critical discussion regarding the physical soundness of such a peak was given some time ago by S. Veprek and H.U. Beyeler, Philos. Mag. B 44, 557 (1981).
    • (1981) Philos. Mag. B , vol.44 , pp. 557
    • Veprek, S.1    Beyeler, H.2
  • 16
    • 0025682877 scopus 로고
    • A study on the effect of different fictive temperatures on the x-ray-diffraction pattern is given by Th. Gerber, B. Himmel and J. Weigelt, J. Non-Cryst. Solids 126, 35 (1990).
    • (1990) J. Non-Cryst. Solids , vol.126 , pp. 35
    • Himmel, B.1    Weigelt, J.2
  • 17
    • 0028741611 scopus 로고
    • Some arguments in support of the existence of a large fraction of planar boroxol rings (i.e. up to 80% of boron atoms participating in such structures) are given by A.C. Hannon, D.I. Grimley, R.A. Hulme, A.C. Wright and R.N. Sinclair, J. Non-Cryst. Solids 177, 299 (1994), whereas reconstructions of the experimental S(Q) diffraction pattern by means of reverse Monte Carlo techniques, seem to point to a rather low portion of these structures. J. Swenson and L. Björjesson (private communication).
    • (1994) J. Non-Cryst. Solids , vol.177 , pp. 299
    • Hannon, A.1    Grimley, D.2    Hulme, R.3    Wright, A.4    Sinclair, R.5
  • 20
    • 0642325548 scopus 로고
    • Brillouin-scattering data at low (3-300 K) temperatures were reported by J. Pelous, Phys. Lett. 74A, 275 (1979).
    • (1979) Phys. Lett. , vol.74A , pp. 275
    • Pelous, J.1
  • 25
    • 85037918414 scopus 로고    scopus 로고
    • A.C. Hannon (private communication). Data measured for several different temperatures show a consistent increase in the density of states at frequencies below some 20 meV.
    • Hannon, A.1
  • 26
    • 1042289870 scopus 로고
    • For an application of such a procedure see, for instance, M. Alvarez et. al Mol. Phys. 66, 397 (1989).
    • (1989) Mol. Phys. , vol.66 , pp. 397
    • Alvarez, M.1
  • 29
    • 0000456084 scopus 로고
    • According to the predictions of the "soft-potential model," a quasielastic broadening due to "soft modes" should exist, although such broadening only becomes evident at temperatures somewhat above ≈0.(Formula presented). For some detailed predictions of the soft-potential model, see, V.L. Gurevich, D.A. Parshin, J. Pelous and H.R. Schober, Phys. Rev. B 48, 16t318 (1993) and references to previous works.
    • (1993) Phys. Rev. B , vol.48 , pp. 16318
    • Gurevich, V.1    Parshin, D.2    Pelous, J.3    Schober, H.4
  • 32
    • 36149015707 scopus 로고
    • The Eq. (8) can also be obtained as a limit of the general expression due to K.S. Singwi and A. Sjolander, Phys. Rev. 119, 863 (1960).
    • (1960) Phys. Rev. , vol.119 , pp. 863
    • Singwi, S.1    Sjolander, A.2
  • 33
    • 0000122988 scopus 로고
    • See, for instance, S.R. Nagel, Phys. Rev. B 16, 1694 (1977).
    • (1977) Phys. Rev. B , vol.16 , pp. 1694
    • Nagel, S.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.