ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles  (3)
  • Springer  (3)
  • 2010-2014
  • 1985-1989  (3)
  • 1
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Mossbauer spectra of a vacuum deposited 95 nm thick57Fe film sandwiched between 35 nm copper layers on a beryllium substrate were measured during and after implantation with 60 keV D3 + ions to a fluence of 1.2×1018 D+/cm2. The modifications of the spectra indicate that at the target temperature of 100 K deuterium is mainly trapped at defects in the α-iron lattice or reemitted. Hydride formation is observed only weakly when the fluence exceeds 1018 D+/cm2. After annealing at room temperature, a complete recovery of the ordinary α-iron spectrum is observed.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Hyperfine interactions 38 (1987), S. 741-759 
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Collinear Laser Ion Beam Spectroscopy (CLIBS) investigates hyperfine structures (hfs) and isotope shifts (IS) in spectral lines and is well suited for the study of nuclear moments of short-lived isotopes. It is fast, highly selective, highly sensitive and allows many experimental alternatives. The high accuracy makes it also an interesting tool for atomic physics. A basic experimental setup is described. Results for nuclear moments and radii in Sm, Eu, Gd show that the accuracy of hfs and IS data is much better than the resulting moments. We discuss the hfs-anomaly and its dependence on atomic quantum numbers (L, S, J) and show that its determination is possible without the knowledge of the nuclear magnetic moments. A hfs-anomaly in respect of the nuclear quadrupole moment was not found. IS-measurements are used to determine permanent and fluctuating nuclear deformation. The standard interpretation is inconsistent in the case of Eu. Modifications of the theory are suggested. Crossed second order (CSO) effects affect the IS values. We show that CSO-effects may help to determine the field effect of the IS experimentally.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Mit Hilfe des Mikro-Thermoanalysators und des Wärmeflußcalorimeters DSC 111 der Fa. Setaram wurden die Entropien für den Phasenübergang Chalcopyrit-Zinkblende von AIBIIIC 2 VI - und AIIBIVC 2 V -Verbindungen bestimmt. Aus diesen Experimenten kann nicht geschlossen werden, welche Ordnung der Übergang besitzt. In der Diskussion wird jedoch gezeigt, daß ein Übergang erster Ordnung wahrscheinlich ist. Eine einfache Korrelation zwischen dem Gitterkonstantenverhältnis, extrapoliert bis zum Schmelzpunkt und der auf den Schmelzpunkt reduzierten Umwandlungstemperatur gestattet die Vorhersage von Phasenumwandlungen.
    Abstract: Резюме С помощью микротермо анализатора Сетарам и ДСК 111с тепловым потоком было определено изме нение энтропии при фа зовом переходе типа халько пирит-сфалерит для соединений АIBIIIC 2 VI и АIBIVC 2 V . На основе полученных результа тов не представилось возможным установит ь порядок перехода, но в обсуждении указывае тся как на переход первого порядка. На ос нове простой корреля ции между отношением постоянн ых решетки, экстраполированных до температуры плавл ения, и приведенной темпера турой фазового перехода, можно устан овить степень разупо рядочения.
    Notes: Abstract The entropy change of the phase transition from the chalcopyrite to the sphalerite structure of compounds AIBIIIC 2 VI and AIIBIVC 2 V was determined with a Setaram Microthermalanalyzer and a DSC 111 heat flow calorimeter. From these results one can not generally decide the order of the phenomenon, but the discussion gives hints as to a first-order transition. On the basis of a simple correlation between the ratio of the lattice constants extrapolated up to the melting temperature and the reduced temperature of the phase transition, it is possible to predict the order disorder behaviour.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...