High precision ac susceptometer for measuring the temperature and magnetic field dependence of the penetration depth in superconductor single crystals
| ISSN: |
1089-7623
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
Electrical Engineering, Measurement and Control Technology
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| Notes: |
An ac susceptometer has been developed for very sensitive measurement of the magnetic moment of small samples as a function of temperature and applied dc field. The system was designed specifically for measurements on small single crystals of the high Tc superconductor YBa2Cu3O7−δ in the Meissner state. The natural platelet geometry of these crystals allows results to be easily transcribed into changes in the material's magnetic field penetration depth, Δλ, an important quantity in the exploration of the underlying physics of its superconductivity. The resolution of the technique is of the order of one tenth of an angstrom for a sample of area ∼2 mm2. © 2000 American Institute of Physics.
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| Type of Medium: |
Electronic Resource
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| URL: |