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Author  |
Luzuriaga, J.; Andre, M.-O.; Benoit, W. |
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Title |
Mechanical response of the flux lines in ceramic YBa2Cu3O7- |
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Journal Article |
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Year |
1992 |
Publication |
Physical Review B |
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45 |
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21 |
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12492-12497 |
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Abstract |
We have studied the mechanical response of the flux-line lattice (FLL) in ceramic samples of YBa2Cu3O7 by means of a low-frequency forced pendulum. The internal friction and elastic modulus variation of the FLL have been measured as a function of temperature for different values of the applied stress. A somewhat different behavior was observed whether a zero-field-cooling or field-cooling procedure was followed. Measurements of the internal friction and elastic modulus as a function of the applied stress at constant temperature show amplitude-dependent dissipation, with a maximum dissipation at intermediate values of the stress. This dependence is well fitted by a rheological model of extended dry friction, if we restrict ourselves to the dissipation and modulus at fixed temperature. The agreement is not so good when attempting to extend the model to fit the temperature dependence. |
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Institut de Genie Atomique, Ecole Politechnique Federal de Lausanne, (1015) Ecublens, Switzerland |
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01631829 (ISSN) |
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Notes |
Export Date: 28 April 2009; Source: Scopus; doi: 10.1103/PhysRevB.45.12492; Language of Original Document: English; Correspondence Address: Luzuriaga, J.; Institut de Genie Atomique; Ecole Politechnique Federal de Lausanne (1015) Ecublens, Switzerland |
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Call Number |
BT @ luzuriag @ |
Serial |
522 |
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