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  1. No Access

    Article

    A study of the pressure vessel steel of the WWER-440 unit 1 of the Kozloduy nuclear power plant

    A comparison between highly neutron irradiated samples from the region of weld № 4 and low irradiated samples from weld № 1 taken from the pressure vessel of the WWER-440 Unit № 1 of the Kozloduy NPP has been ...

    E. Kostadinova, N. Velinov, T. Avdjieva, I. Mitov, V. Rusanov in Hyperfine Interactions (2017)

  2. No Access

    Article

    Study of the changes in the magnetic properties of stainless steels under mechanical treatment

    Six types of stainless steels (SS) were studied for changes in its structure and magnetic properties under mechanical treatment. Depending on intensity and duration of the process of plastic deformation and th...

    R. Iankov, V. Rusanov, D. Paneva, I. Mitov, A. X. Trautwein in Hyperfine Interactions (2016)

  3. No Access

    Article

    Detailed Mössbauer study of the cation distribution in CoFe2O4 ferrites

    Partially inverted (Co0.185Fe0.815)[Co0.815Fe1.185]O4 spinel submicron particles with spherical shape are studied at low temperature by Mössbauer spectroscopy. Canted magnetic structures are evidenced. The hyperf...

    V. Rusanov, V. Gushterov, S. Nikolov, A. X. Trautwein in Hyperfine Interactions (2009)

  4. No Access

    Chapter and Conference Paper

    Detailed Mössbauer study of the cation distribution in CoFe2O4 ferrites

    Partially inverted (Co0.185Fe0.815)[Co0.815Fe1.185]O4 spinel submicron particles with spherical shape are studied at low temperature by Mössbauer spectroscopy. Canted magnetic structures are evidenced. The hyperf...

    V. Rusanov, V. Gushterov, S. Nikolov, A. X. Trautwein in ISIAME 2008 (2009)

  5. No Access

    Article

    Mössbauer, nuclear inelastic scattering and density functional studies on the second metastable state of Na2[Fe(CN)5NO]·2H2O

    The structure of the light-induced metastable state SII of Na2[Fe(CN)5NO]·2H2O was investigated by transmission Mössbauer spectroscopy (TMS) in the temperature range between 85 and 135 K, nuclear inelastic scatte...

    V. Rusanov, H. Paulsen, L. H. Böttger, H. Winkler, J. A. Wolny… in Hyperfine Interactions (2007)

  6. No Access

    Chapter and Conference Paper

    Iron-containing atmospheric aerosols in the Chernobyl fallout

    Mössbauer spectroscopy was applied to determine the composition and the iron concentration in the atmospheric aerosols contaminated in Sofia, Bulgaria after the Chernobyl accident. The results confirm the majo...

    V. Rusanov, V. Gushterov, H. Winkler, A. X. Trautwein in ICAME 2005 (2007)

  7. No Access

    Chapter and Conference Paper

    Light-induced spin crossover observed for a Fe(II) complex embedded in a Nation membrane

    Light-induced spin crossover has been observed for the first time by means of Mössbauer spectroscopy for a Fe(II) complex embedded in a Nafion membrane. The results obtained confirm other independent observati...

    H. Winkler, V. Rusanov, J. J. McGarvey, H. Toftlund, A. X. Trautwein… in ICAME 2005 (2007)

  8. No Access

    Chapter and Conference Paper

    Determination of Lamb-Mössbauer factors and lattice dynamics in some nitroprusside single crystals

    Mössbauer spectra have been recorded for sodium, guanidinium, barium and lithium nitroprussides single crystal cuts. The temperature dependence of the Lamb-Mössbauer fraction f, respectively, the mean-square nucl...

    V. Rusanov, S. Stankov, V. Gushterov, L. Tsankov, A. X. Trautwein in ICAME 2005 (2007)

  9. No Access

    Article

    Determination of Lamb–Mössbauer factors and lattice dynamics in some nitroprusside single crystals

    Mössbauer spectra have been recorded for sodium, guanidinium, barium and lithium nitroprussides single crystal cuts. The temperature dependence of the Lamb–Mössbauer fraction f, respectively, the mean-square nucl...

    V. Rusanov, S. Stankov, V. Gushterov, L. Tsankov, A. X. Trautwein in Hyperfine Interactions (2006)

  10. No Access

    Article

    Light-induced spin crossover observed for a Fe(II) complex embedded in a Nafion membrane

    Light-induced spin crossover has been observed for the first time by means of Mössbauer spectroscopy for a Fe(II) complex embedded in a Nafion membrane. The results obtained confirm other independent observati...

    H. Winkler, V. Rusanov, J. J. McGarvey, H. Toftlund… in Hyperfine Interactions (2006)

  11. No Access

    Article

    Iron-containing atmospheric aerosols in the Chernobyl fallout

    Mössbauer spectroscopy was applied to determine the composition and the iron concentration in the atmospheric aerosols contaminated in Sofia, Bulgaria after the Chernobyl accident. The results confirm the majo...

    V. Rusanov, V. Gushterov, H. Winkler, A. X. Trautwein in Hyperfine Interactions (2005)

  12. No Access

    Chapter and Conference Paper

    Photoswitching of Nitroprussides

    For 25 years the two metastable electronic states (SI and SII), accessible in the nitroprusside anion [Fe(CN)5NO]2− (NP) by irradiation with blue polarized light, have been the subject of intense investigations f...

    V. Rusanov, SV. Stankov, A. X. Trautwein in Mössbauer Spectroscopy (2003)

  13. No Access

    Article

    Photoswitching of Nitroprussides

    For 25 years the two metastable electronic states (SI and SII), accessible in the nitroprusside anion [Fe(CN)5NO]2− (NP) by irradiation with blue polarized light, have been the subject of intense investigations f...

    V. Rusanov, Sv. Stankov, A. X. Trautwein in Hyperfine Interactions (2002)

  14. No Access

    Article

    Mössbauer Investigation of the Single Crystal and Powder Sample of Barium Nitroprusside Ba[Fe(CN)5NO]⋅3H2O (BNP)

    Angle-dependent Mössbauer investigation on single crystals of barium nitroprosside (BNP) using a-, b- and c-crystal cuts has been performed. The EFG tensor has been fully determined by the orientation between the...

    Sv. Stankov, V. Rusanov, V. Angelov, S. Haussühl, A. X. Trautwein in Hyperfine Interactions (2002)

  15. No Access

    Article

    Mössbauer, magnetic, X‐ray fluorescence and transmission electron microscopy study of natural magnetic materials from speleothems: haematite and the Morin transition

    Detrital magnetic materials within cave stalagmitic formations, e.g., haematite or magnetite, carry remanence whose vector is of value in dating. Magnetometry measurements on a particular haematite‐bearing sam...

    V. Rusanov, R.G. Gilson, A. Lougear, A.X. Trautwein in Hyperfine Interactions (2000)

  16. No Access

    Article

    Mössbauer studies of the vibrational anisotropy and of light-induced metastable states in single-crystalline guanidinium nitroprusside

    Mössbauer studies in the energy and time domain were performed on single crystals of guanidinium nitroprusside with different orientations of their crystallographic a-, b- and c-axes with respect to the incident ...

    V. Rusanov, H. Grünsteudel, H. Paulsen, H. Winkler… in Hyperfine Interactions (2000)

  17. No Access

    Article

    Mössbauer study of the vibrational anisotropy and of the light-induced population of metastable states in single-crystalline guanidinium nitroprusside

    Mössbauer studies were performed on single crystals of guanidinium nitroprusside with different orientations of their principal crystallographic axes (a, b, c) with respect to the incident radiation. The markedly...

    V. Rusanov, H. Winkler, C. Ober… in The European Physical Journal B - Condense… (1999)

  18. No Access

    Article

    Mössbauer spectroscopy in the time domain applied to the study of single‐crystalline guanidinium nitroprusside

    Guanidinium nitroprusside GNP, (CN3H6)2[Fe(CN)5NO] has been investigated in single‐crystalline form by nuclear resonant forward scattering (NFS) using synchrotron radiation (Mössbauer spectroscopy in the time dom...

    H. Grünsteudel, V. Rusanov, H. Winkler, W. Meyer‐Klaucke… in Hyperfine Interactions (1999)

  19. No Access

    Chapter

    Hysteresis Loops and Remanence Curves of Small γ-Fe2O3 Particles with Different Packing Densities

    Small (≈ 350Å) and nearly spherical particles of γ-Fe2O3 were studied by XRD, TEM, Mössbauer spectra and RT magnetization measurements. The effective interparticle interactions for a number of γ-Fe2O3 - Al2O3 mix...

    M. Grigorova, V. Masheva, D. Nihtianova… in Magnetic Hysteresis in Novel Magnetic Mate… (1997)

  20. No Access

    Article

    Mössbauer parameters of the two long-lived metastable states in Na2[Fe(CN)5NO]·2H2O single crystals

    We have measured the quadrupole splitting, isomer shift and line broadening of the ground and two metastable states in Na2[Fe(CN)5NO]·2H2O single crystals. Pure state II could be observed by Mössbauer spectroscop...

    Th. Woike, W. Kirchner, Hyung-sang Kim, S. Haussühl, V. Rusanov… in Hyperfine Interactions (1993)

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