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Träfflista för sökning "WFRF:(Johansson Börje) srt2:(2000-2004)"

Search: WFRF:(Johansson Börje) > (2000-2004)

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  • Ahuja, Rajeev, et al. (author)
  • Electronic and optical properties of gamma-Al2O3 from ab initio theory
  • 2004
  • In: Journal of Physics. - : IOP Publishing. - 0953-8984 .- 1361-648X. ; 16:16, s. 2891-2900
  • Journal article (peer-reviewed)abstract
    • We report on a density functional theory calculation of the electronic structure and optical properties of gamma-Al2O3. We have made a comparison between the optical and electronic properties of the alpha and gamma phases of alumina. The calculated bulk modulus of the gamma phase is slightly lower than that of the a phase. The calculated static dielectric function and the optical constant of the gamma phase are very close to those of the alpha phase.
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  • Ahuja, Rajeev, et al. (author)
  • Electronic and optical properties of lead iodide
  • 2002
  • In: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 92:12, s. 7219-7224
  • Journal article (peer-reviewed)abstract
    • The electronic properties and the optical absorption of lead iodide (PbI2) have been investigated experimentally by means of optical absorption and spectroscopic ellipsometry, and theoretically by a full-potential linear muffin-tin-orbital method. PbI2 has been recognized as a very promising detector material with a large technological applicability. Its band-gap energy as a function of temperature has also been measured by optical absorption. The temperature dependence has been fitted by two different relations, and a discussion of these fittings is given.
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7.
  • Ahuja, R., et al. (author)
  • Electronic structure of Ti3SiC2
  • 2000
  • In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 76:16, s. 2226-2228
  • Journal article (peer-reviewed)
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  • Ahuja, Rajeev, et al. (author)
  • Optical properties of 4H-SiC
  • 2002
  • In: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 91:4, s. 2099-2103
  • Journal article (peer-reviewed)abstract
    • The optical band gap energy and the dielectric functions of n-type 4H-SiC have been investigated experimentally by transmission spectroscopy and spectroscopic ellipsometry and theoretically by an ab initio full-potential linear muffin-tin-orbital method. We present the real and imaginary parts of the dielectric functions, resolved into the transverse and longitudinal photon moment a, and we show that the anisotropy is small in 4H-SiC. The measurements and the calculations fall closely together in a wide range of energies.
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10.
  • Ahuja, Rajeev, et al. (author)
  • Optical properties of SiGe alloys
  • 2003
  • In: Journal of Applied Physics. - : AIP Publishing. - 0021-8979 .- 1089-7550. ; 93:7, s. 3832-3836
  • Journal article (peer-reviewed)abstract
    • The optical properties of Si1-xGex have been investigated theoretically using a full-potential linear muffin-tin-orbital method. We present the density-of-states as well as the real and imaginary parts of the dielectric function. The calculated dielectric function was found to be in good agreement with the spectroscopic ellipsometry measurements by J. Bahng , J. Phys.: Condens. Matter 13, 777 (2001), and we obtained a static dielectric constant of epsilon(0)=12.19+2.45x in the Si rich regime (xless than or equal to0.5).
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  • Result 1-10 of 240
Type of publication
journal article (187)
reports (26)
book chapter (12)
doctoral thesis (5)
editorial collection (3)
conference paper (3)
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research review (3)
review (1)
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Type of content
peer-reviewed (191)
other academic/artistic (45)
pop. science, debate, etc. (4)
Author/Editor
Johansson, Börje (232)
Ahuja, Rajeev (45)
Ahuja, R (36)
Vitos, Levente (35)
Eriksson, O (25)
Kollar, J. (22)
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Abrikosov, I. A. (21)
Persson, Clas (14)
Wang, Y. (13)
Karlsson, Charlie (12)
Klaesson, Johan (12)
Belonoshko, Anatoly ... (12)
Vekilov, Y. K. (12)
Eriksson, Olle (11)
da Silva, A. F. (11)
Simak, S. I. (9)
Nordström, Lars (9)
James, P (8)
Osorio-Guillen, J. M ... (8)
Korzhavyi, Pavel A., ... (8)
Li, S. (7)
de Almeida, J. S. (6)
Holm, B. (6)
Dubrovinsky, L. (6)
Dubrovinskaia, N. (6)
Gutierrez, G. (5)
Ruban, Andrei V. (5)
Araujo, C. M. (5)
Mattesini, M. (5)
Le Bihan, T. (5)
Korzhavyi, Pavel A. (5)
Andersson, Martin (4)
Taga, A. (4)
Abrikosov, Igor (4)
Smirnova, E. A. (4)
Göthelid, Mats (4)
Jansson, Ulf (4)
Rekhi, S. (4)
Ambrosch-Draxl, C. (4)
Korzhavyi, P A (4)
Sharma, S. (3)
Ponomareva, A. V. (3)
Olovsson, W. (3)
Pepe, I. (3)
Wills, J. M. (3)
Saxena, S. K. (3)
Guillen, J. M. O. (3)
Liberman, M.A. (3)
Katsnelson, M I (3)
Jansson, U. (3)
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University
Royal Institute of Technology (167)
Uppsala University (70)
Jönköping University (36)
Linköping University (10)
University of Gävle (4)
University West (2)
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Mid Sweden University (2)
Chalmers University of Technology (2)
University of Gothenburg (1)
Umeå University (1)
Stockholm University (1)
Lund University (1)
Karolinska Institutet (1)
Blekinge Institute of Technology (1)
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Language
English (222)
Swedish (17)
Portuguese (1)
Research subject (UKÄ/SCB)
Natural sciences (78)
Social Sciences (27)
Engineering and Technology (21)

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