11 Result(s)
within
R. Bohmer
Condensed Matter Physics
Engineering, general
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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...
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Article
Erratum to: Pulsed dielectric spectroscopy of supercooled liquids
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Article
Erratum to Pulsed dielectric spectroscopy of supercooled liquids
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
