Abstract
We describe an experimental technique for simultaneous measurement of both the normal (Bz) and the in-plane (Bx) components of the magnetic induction field near the surface of a superconducting sample. This technique utilizes a novel design of a double-layered Hall sensor array fabricated from a GaAs/AlGaAs heterostructure containing two parallel layers of a two-dimensional electron gas. The effectiveness of this technique is demonstrated in measurements of Bx and Bz and the current distribution at the surface of a thin YBa2Cu3O7 crystal.
Original language | English |
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Pages (from-to) | 2891-2893 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 72 |
Issue number | 22 |
DOIs | |
State | Published - 1998 |
Externally published | Yes |