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Showing 1 to 6 of 6 for “"tunneling-states model"”.
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Low-temperature thermal expansion of amorphous solids
… presented in the context of the phenonenclogical tunneling-states model Consistency in explanation of thermal expansion and ultrasonic behavior maintained by assuming a broad, weakly energy-dependent distribution of coupling strengths between phonons and the localized excitations thought to be …
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Phonon thermal transport in metallic glasses below 100 K
… comparisons between our data and the tunneling-states model of the localized excitations. Since there are large discrepancies, we believe that it is necessary to seek further extensions to the tunneling-states theory.
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Low Temperature Behavior of Potassium and Sodium-Silicate Glasses
… is in tangential agreement with the free-volume model which predicts that the total density of states of TLS should vary as T(,g)('-1). The tunneling-states model of TLS could be fitted to the data, but only at the expense of a more complex array of adjustable parameters than originally …
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Low temperature, glass-like properties of crystalline beta-alumina
… associated with the cations in the planes. The tunneling-states model, which explains glassy properties with excitations arising from quantum mechanical tunneling of units in double-well potentials, was used to analyze the data. An energy dependent density of tunneling states with a spectrum of …
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Low-energy, localized excitations in amorphous polymers
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-20T20:03:53Z No. of bitstreams: 1 1980_matsumoto.pdf: 4103014 bytes, checksum: 0ca927dd0f785f97fb48332794b75f28 (MD5)
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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)