Abstract
The bulk magnetostriction of an YBa2Cu3O7 - x ceramic superconductor under the action of dc current pulses was measured at T = 77 K with the aid of a differential dilatometer with an error not exceeding 10-7. The magnetostriction in this material is negative and obeys a logarithmic law as function of the current density. It is demonstrated that a considerable contribution to magnetostriction of the YBa2Cu3O7 - x ceramics is due to the grain boundary layers.
Original language | English |
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Pages (from-to) | 565-566 |
Number of pages | 2 |
Journal | Technical Physics Letters |
Volume | 26 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2000 |
Externally published | Yes |