메뉴 건너뛰기




Volumn 318, Issue 5851, 2007, Pages 788-792

4D visualization of transitional structures in phase transformations by electron diffraction

Author keywords

[No Author keywords available]

Indexed keywords

UNCLASSIFIED DRUG; VANADIUM DERIVATIVE; VANADIUM DIOXIDE;

EID: 36749048497     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1147724     Document Type: Article
Times cited : (547)

References (41)
  • 2
  • 7
    • 34250161660 scopus 로고    scopus 로고
    • and references therein
    • K. J. Gaffney, H. N. Chapman, Science 316, 1444 (2007), and references therein.
    • (2007) Science , vol.316 , pp. 1444
    • Gaffney, K.J.1    Chapman, H.N.2
  • 11
  • 29
    • 27844591731 scopus 로고    scopus 로고
    • Ultrafast Optics IV
    • F. Krausz, G. Korn, P. Corkum, I. A. Walmsley, Eds, of, Springer, New York
    • V. A. Lobastov et al., in Ultrafast Optics IV, F. Krausz, G. Korn, P. Corkum, I. A. Walmsley, Eds., vol. 95 of Springer Series in Optical Sciences (Springer, New York, 2004), pp. 419-435.
    • (2004) Springer Series in Optical Sciences , vol.95 , pp. 419-435
    • Lobastov, V.A.1
  • 32
    • 40949161862 scopus 로고    scopus 로고
    • Given the x-ray wavelength (1.54Å) and diffraction angle (13.9°) reported (22), the Bragg peak (22) should be indexed as (011) of the monoclinic phase. It was assigned as (110) of the monoclinic phase, which in fact becomes (110) of the rutile phase upon transformation.
    • Given the x-ray wavelength (1.54Å) and diffraction angle (13.9°) reported (22), the Bragg peak (22) should be indexed as (011) of the monoclinic phase. It was assigned as (110) of the monoclinic phase, which in fact becomes (110) of the rutile phase upon transformation.
  • 35
    • 40949163649 scopus 로고
    • and references therein
    • J. M. Thomas, Chem. Br. 6, 60 (1970), and references therein.
    • (1970) Chem. Br , vol.6 , pp. 60
    • Thomas, J.M.1
  • 36
    • 40949160790 scopus 로고    scopus 로고
    • 2/(V·s) for metallic vanadium dioxide (20). The diffusion of such electrons into the deeper regions may contribute to generation of shear.
    • 2/(V·s) for metallic vanadium dioxide (20). The diffusion of such electrons into the deeper regions may contribute to generation of shear.
  • 37
    • 40949104990 scopus 로고    scopus 로고
    • Shear motion leads to a change in principal axes (34). Because not all Bragg spots are equally well in phase with the Ewald sphere at the same time (28), shear motion may enhance or suppress the Bragg intensities to values above or below the initial intensity, as observed.
    • Shear motion leads to a change in principal axes (34). Because not all Bragg spots are equally well in phase with the Ewald sphere at the same time (28), shear motion may enhance or suppress the Bragg intensities to values above or below the initial intensity, as observed.
  • 38
    • 40949142978 scopus 로고    scopus 로고
    • 3 (21), which contains four vanadium atoms, this energy density gives ∼0.05 photon per vanadium.
    • 3 (21), which contains four vanadium atoms, this energy density gives ∼0.05 photon per vanadium.
  • 40
    • 40949148388 scopus 로고    scopus 로고
    • In order to evaluate the maximum range of the intensity decay, we also considered a convoluted step function instead of a decay process. This distinction becomes significant depending on the physics of the process involved. For a step function, we obtained Δt1, 760 fs. The overall fit of the transient was repeated 1000 times to estimate the error in the Δt1 range, which was found to be ±80 fs. We note that changes in intensity occur in a step of 250 fs. For the ps component, the range Δt1 of 15 ps is evident from the figure
    • 1 of 15 ps is evident from the figure.
  • 41
    • 40949087889 scopus 로고    scopus 로고
    • We are grateful to J. Weissenrieder for helpful discussions, L. H. Tjeng for generously providing some crystals, G. R. Rossman for the crystal-cutting equipment, and L. M. Henling for help with the x-ray measurements. This work was supported by the NSF, by the Air Force Office of Scientific Research, and by the Gordon and Betty Moore Center for Physical Biology at Caltech. P.B. was partially supported by the Alexander von Humboldt Foundation
    • We are grateful to J. Weissenrieder for helpful discussions, L. H. Tjeng for generously providing some crystals, G. R. Rossman for the crystal-cutting equipment, and L. M. Henling for help with the x-ray measurements. This work was supported by the NSF, by the Air Force Office of Scientific Research, and by the Gordon and Betty Moore Center for Physical Biology at Caltech. P.B. was partially supported by the Alexander von Humboldt Foundation.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.