Temperature dependence of the vibrational properties of sodium microclusters

TCNQ is a fascinating molecule with potential for optical, electronic and magnetic materials. Our work studies the low energy lattice modes of the parent compound to further understand the vibrational properties including their temperature dependence.

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Temperature dependence of vibrational properties in a sintered SrZrO3

Solid State Ionics ◽

10.1016/s0167-2738(01)00958-4 ◽

2001 ◽

Vol 145 (1-4) ◽

pp. 315-318 ◽

Cited By ~ 4

Author(s):

Kunio Wakamura

Keyword(s):

Temperature Dependence ◽

Vibrational Properties

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Theoretical Limitations on the Temperature Dependence of Vibrational Properties of Harmonic Solids and Molecules

Physical Review ◽

10.1103/physrev.188.1385 ◽

1969 ◽

Vol 188 (3) ◽

pp. 1385-1391 ◽

Cited By ~ 13

Author(s):

DUANE P. JOHNSON ◽

ALLEN J. KASSMAN

Keyword(s):

Temperature Dependence ◽

Vibrational Properties

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Temperature Dependence of the Vibrational Properties of PbI2

physica status solidi (b) ◽

10.1002/pssb.2221770110 ◽

1993 ◽

Vol 177 (1) ◽

pp. 143-155 ◽

Cited By ~ 3

Author(s):

C. Julien ◽

H. S. Mavi ◽

A. Chévy

Keyword(s):

Temperature Dependence ◽

Vibrational Properties

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Temperature Dependence of the Critical Electron Dose for Fatty Acid Monolayers

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100053188 ◽

1982 ◽

Vol 40 ◽

pp. 78-79

Author(s):

Kenneth H. Downing ◽

Robert M. Glaeser

Keyword(s):

Electron Beam ◽

Fatty Acid ◽

Inelastic Scattering ◽

Temperature Dependence ◽

Structural Damage ◽

Direct Result ◽

Second Step ◽

Strong Temperature Dependence ◽

Electron Dose ◽

Covalent Bonds

The structural damage of molecules irradiated by electrons is generally considered to occur in two steps. The direct result of inelastic scattering events is the disruption of covalent bonds. Following changes in bond structure, movement of the constituent atoms produces permanent distortions of the molecules. Since at least the second step should show a strong temperature dependence, it was to be expected that cooling a specimen should extend its lifetime in the electron beam. This result has been found in a large number of experiments, but the degree to which cooling the specimen enhances its resistance to radiation damage has been found to vary widely with specimen types.

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Temperature Dependence of Magnetic Domains and Wall Structures

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s042482010009573x ◽

1972 ◽

Vol 30 ◽

pp. 496-497

Author(s):

Sonoko Tsukahara ◽

Tadami Taoka ◽

Hisao Nishizawa

Keyword(s):

Temperature Dependence ◽

Domain Walls ◽

Magnetic Domain ◽

Iron Film ◽

Objective Lens ◽

Lorentz Microscopy ◽

Domain Structures ◽

Wall Structures ◽

Crystal Films ◽

Metallurgical Structure

The high voltage Lorentz microscopy was successfully used to observe changes with temperature; of domain structures and metallurgical structures in an iron film set on the hot stage combined with a goniometer. The microscope used was the JEM-1000 EM which was operated with the objective lens current cut off to eliminate the magnetic field in the specimen position. Single crystal films with an (001) plane were prepared by the epitaxial growth of evaporated iron on a cleaved (001) plane of a rocksalt substrate. They had a uniform thickness from 1000 to 7000 Å.The figure shows the temperature dependence of magnetic domain structure with its corresponding deflection pattern and metallurgical structure observed in a 4500 Å iron film. In general, with increase of temperature, the straight domain walls decrease in their width (at 400°C), curve in an iregular shape (600°C) and then vanish (790°C). The ripple structures with cross-tie walls are observed below the Curie temperature.

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