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Showing 1 to 14 of 14 for “"low temperature behavior"”.
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Low Temperature Behavior of Potassium and Sodium-Silicate Glasses
The low-temperature properties of a system of well characterized potassium and sodium silicate glasses have been measured in an effort to better understand the nature of the low-energy excitations which exist in all glasses and to further investigate relationships between the low-temperature …
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Low temperature behavior of potassium and sodium silicate glasses
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-07T14:44:59Z No. of bitstreams: 1 1984_macdonald.pdf: 3650459 bytes, checksum: 70fc0b9733fcfe218c2144fba9a3ad8c (MD5)
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An acoustic emission-based test to evaluate low temperature behavior of asphalt materials
Low temperature cracking in asphalt pavements located in cold climates is a major cause of pavement deterioration. Accurate evaluation of low temperature cracking behavior of asphalt materials is necessary in order to design pavements that are resistant to thermally induced cracking. Detrimental …
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Terahertz waveguide spectroscopy of two-dimensional plasmons in GaAs
… as GaAs quantum wells, have been well-studied at low frequencies and in extreme conditions of high magnetic fields and ultralow temperatures. While high-frequency excitations of 2DEGs have been examined to some extent from microwave to terahertz (THz) frequencies, a fundamental understanding of …
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The statistics of finite, one dimensional lattice fluids
… lattice fluid in which particles are allowed to assume only discrete positions is proposed. Particles are free to move from one lattice site to another interacting through a variety of potentials, including the Lennard-Jones type. The model allows the partition function to be evaluated …
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Strongly coupled systems : from quantum antiferromagnets to unified models for superconductors
… a correct field-theoretical description of the low-temperature behavior of the spin correlation length in various spin representations S. Using a finite-size-scaling technique, we explored correlation lengths of up to 105 lattice spacings for spins S=1 and 5/2. We show how the recent prediction …
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Pairing symmetry, competing orders, and quantum criticality in iron based superconductors via London penetration depth measurements
The temperature dependence of the magnetic penetration depth (λ) has been measured in single crystals of BaFe2As2 that have been driven into superconductivity by several different kinds of dopants, specifically potassium, cobalt, and phosphorous. In (Ba{0.6}K{0.4})Fe2As2 the low temperature …
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Studies on two topics in theoretical physics: Entanglement entropy and holographic superconductors
… order phase transition at certain critical temperature Tc and a mean _eld critical exponent of 0.5. The low temperature behavior of this model does not conform to that of a superconductor however. We also study the static, axially symmetric solutions (vortex solutions), especially their …
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Tunneling and migration of the dumbbell defect in electron irradiated aluminum-zinc alloys
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-08T17:22:26Z No. of bitstreams: 1 1983_wallace.pdf: 3573416 bytes, checksum: aa73c7ecf0f539684728b0c5538dfe84 (MD5)
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The Pressure Dependence of the Low Temperature Thermal Properties of an Amorphous Polymer
The low-temperature behavior of glasses has been described as anomalous for its marked differences from crystalline behavior and as universal for its apparently weak dependence on chemical composition of the glass. For temperatures below 1 K the phenomemological Tunneling Model and the existence of …
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The pressure dependence of the low-temperature thermal properties of an amorphous polymer
The low-temperature behavior of glasses has been described as anomalous for its marked differences from crystalline behavior and as universal for its apparently weak dependence on chemical composition of the glass. For temperatures below 1 K the phenomemological Tunneling Model and the existence of …
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Proximity effects and vortex dynamics in mesoscopic superconductor-normal metal-superconductor arrays
… has proven invaluable in characterizing the behavior of real systems, that is, those possessing any amount of disorder. The theory predicts that, at zero temperature in 1D and 2D systems, the diffusive motion of electrons scattering off impurities ceases, and there is no long range electron …
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Compressibility of a bosonic Mott-insulator in a disordered optical lattice
… in superfluid 4He and electrons in certain high-temperature superconductors like the cuprates. Beyond academic interest, a solution to this problem has practical applications. It would enable technological advancements such as the production of materials and devices with novel characteristics by …
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Investigation and Improvement of the Low Temperature Performance of High-Capacity Silicon Anodes for Lithium-Ion Batteries
The behavior of a lithium-ion battery is highly influenced by its operating temperature. Kinetics of lithium intercalation may improve upon increased temperature or become sluggish when the temperature is lowered. Many physical properties and reactions within the cell during discharge contribute to …