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15 Result(s)

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  1. No Access

    Article

    Ion swee** in conducting dielectric materials

    Conductivity-related low-frequency dielectric losses frequently obscure loss peaks arising from dipole relaxations in dielectric materials. The application of moderately large electrical fields to ion contain...

    C. Gainaru, R. Böhmer, G. Williams in The European Physical Journal B (2010)

  2. No Access

    Chapter

    Dielectric Spectroscopy and Multidimensional NMR — a Comparison

    Broadband dielectric spectroscopy (BDS) and solid-state nuclear magnetic resonance (NMR) are two of the working horses in modern materials research. Both methods are well suited to study the dynamics in disord...

    R. Böhmer, F. Kremer in Broadband Dielectric Spectroscopy (2003)

  3. No Access

    Chapter

    Principles and Applications of Pulsed Dielectric Spectroscopy and Nonresonant Dielectric Hole Burning

    Nowadays dielectric relaxation measurements can be carried out almost routinely in broad frequency ranges continuously covering ten to fifteen decades and more [1. This allows one to track the time scale on wh...

    R. Böhmer, G. Diezemann in Broadband Dielectric Spectroscopy (2003)

  4. No Access

    Article

    Aging, rejuvenation, and memory phenomena in a lead-based relaxor ferroelectric

    Isothermal aging and temperature cycle experiments were done on the relaxor ferroelectric lead magnesium niobate mixed with 10% lead titanate (PMN-10PT) around and below the diffuse maximum of the dielectric l...

    O. Kircher, R. Böhmer in The European Physical Journal B - Condense… (2002)

  5. No Access

    Article

    The lithium ion conductor β-spodumene: an orientational glass

    Polycrystals of β-spodumene were investigated using impadence spectroscopy for frequencies 0.1 Hz < ν < 235 GHz and for temperatures 5 K < T < 500 K. At high temperatures the Li ions are mobile and lead to dc and...

    R. Böhmer, P. Lunkenheimer, M. Lotze, A. Loidl in Zeitschrift für Physik B Condensed Matter (1996)

  6. Article

    Erratum to: Pulsed dielectric spectroscopy of supercooled liquids

    R. Böhmer, B. Schiener, J. Hemberger in Zeitschrift für Physik B Condensed Matter (1995)

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  7. Article

    Erratum to Pulsed dielectric spectroscopy of supercooled liquids

    R. Böhmer, B. Schiener, J. Hemberger in Zeitschrift für Physik B Condensed Matter (1995)

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  8. No Access

    Article

    The phase diagram of (NH4I)x(KI)1−x

    The χ,T phase diagram of (NH4I)x(KI)1−x has been determined using neutron diffraction experiments and dielectric spectroscopy. At low temperatures and with decreasing χ, the sequence γ, β, ε and glass phase has b...

    M. Paasch, M. Winterlich, R. Böhmer… in Zeitschrift für Physik B Condensed Matter (1995)

  9. No Access

    Article

    The phase diagram of (NH4I)x(KI)1−x

    The χ,T phase diagram of (NH4I)x(KI)1−x has been determined using neutron diffraction experiments and dielectric spectroscopy. At low temperatures and with decreasing χ, the sequence γ, β, ε and glass phase has b...

    M. Paasch, M. Winterlich, R. Böhmer… in Zeitschrift für Physik B Condensed Matter (1995)

  10. No Access

    Article

    Order parameters and dielectric relaxation in betaine proton glasses

    Mixed crystals of betaine, phosphite and betaine phosphate have been investigated using broadband di-electric spectroscopy at frequencies 10−1Hz≤ν≤109Hz and temperatures 1.5 K≤T≤300 K for several betaine phosphat...

    H. Ries, R. Böhmer, I. Fehst, A. Loidl in Zeitschrift für Physik B Condensed Matter (1995)

  11. No Access

    Article

    Order parameters and dielectric relaxation in betaine proton glasses

    Mixed crystals of betaine, phosphite and betaine phosphate have been investigated using broadband di-electric spectroscopy at frequencies 10−1Hz≤ν≤109Hz and temperatures 1.5 K≤T≤300 K for several betaine phosphat...

    H. Ries, R. Böhmer, I. Fehst, A. Loidl in Zeitschrift für Physik B Condensed Matter (1995)

  12. No Access

    Article

    Pulsed dielectric spectroscopy of supercooled liquids

    Pulsed dielectric spectroscopy is introduced as a technique for selectively emphasizing specific components of the non-exponential dielectric response of matter. Samples studied include supercooled liquid prop...

    R. Böhmer, B. Schiener, J. Hemberger… in Zeitschrift für Physik B Condensed Matter (1995)

  13. No Access

    Article

    β-Relaxation and low-temperature specific heat in (KBr)1−x(KCN)x

    The specific heat in (KBr)1−x(KCN)x has been measured for concentrations 0.00≦x≦0.93 and for temperatures 2 K≦T≦50 K. In addition, the dipolar relaxation phenomena were studied using dielectric spectroscopy. The ...

    B. Mertz, R. Böhmer, B. Eisele, A. Loidl in Zeitschrift für Physik B Condensed Matter (1990)

  14. No Access

    Article

    Reorientations and phase transitions in (Kr)1-x(CH4-nD n ) x

    The condensed isotopic modifications of methane, CH4, CH2D2, and CD4 and their solutions with Kr were investigated using dielectric techniques. The polarizabilities were computed from the permittivities of the pu...

    R. Böhmer, A. Loidl in Zeitschrift für Physik B Condensed Matter (1990)

  15. No Access

    Article

    Elastic and quasielastic neutron scattering studies in KBr:KCN mixed crystals

    Neutron scattering studies in (KBr)1−x(KCN)x mixed crystals are presented utilizing powder diffraction, single crystal diffraction and time-of-flight techniques. Forx>0.6 (KBr)1−x(KCN)x crystals exhibit ferroelas...

    A. Loidl, T. Schräder, K. Knorr, R. Böhmer… in Zeitschrift für Physik B Condensed Matter (1989)