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Author |
Herbsommer, J.A.; Luzuriaga, J.; Cheong, S.-W. |
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Title |
Vortex glass melting in single crystal La1.825 Sr0.075CuO4 |
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Journal Article |
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Year |
1996 |
Publication |
Physica C |
Abbreviated Journal |
Physica C |
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Volume |
258 |
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1-2 |
Pages |
169-174 |
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Keywords |
Copper compounds; Crystal lattices; Frequency response; Glass; Magnetic field measurement; Magnetic permeability measurement; Melting; Phase diagrams; Single crystals; Temperature; Vortex flow; AC susceptibility; Cuprates; Pinned flux lattice; Oxide superconductors |
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Abstract |
The vortex phase diagram in single crystalline La1.85Sr0.075CuO4 has been studied using an AC-susceptibility technique. A peak in the out-of-phase (x?) component of the susceptibility indicates a transition from a pinned flux lattice (FLL) to an unpinned one. This peak is frequency dependent for all the values of the magnetic field measured (0.01 to 4 T), and this, as well as the general behavior found in the cuprates, has prompted us to interpret our data as evidence for a vortex-glass to liquid transition in the FLL. The activation energies obtained can be fitted to a theory developed by Vinokur et al. Measurements with the magnetic field at an angle with the Cu-O planes may also be understood qualitatively within this framework. |
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AT and T Bell Laboratories, Murray Hill, NJ, United States |
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09214534 (ISSN) |
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Notes |
Cited By (since 1996): 2; Export Date: 28 April 2009; Source: Scopus; CODEN: PHYCE; doi: 10.1016/0921-4534(95)00812-8; Language of Original Document: English; Correspondence Address: Luzuriaga, J.; Centro At |
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BT @ luzuriag @ |
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483 |
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