Magnetostriction of a superconductor: Results from the critical-state model
- Department of Physics, Dalhousie University, Halifax, Nova Scotia B3H3J5 (Canada)
In many cases, the critical-state theory can be treated as a sufficiently accurate approximation for the modeling of the magnetic properties of superconductors. In the present work, the magnetostrictive hysteresis is computed for a quite general case of the modified Kim{endash}Anderson model. The results obtained reproduce many features of the giant magnetostriction (butterfly-shaped curves) reported in the literature for measurements made on single-crystal samples of the high-temperature superconductor Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}. It is shown that the addition of a contribution to the magnetostriction in the superconducting state which is of similar origin as in the normal state, offers a broader phenomenological interpretation of the complex magnetostriction hysteresis found in such heavy-fermion compounds as UPt{sub 3}, URu{sub 2}Si{sub 2}, or UBe{sub 13}. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 280006
- Report Number(s):
- CONF-951101--
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 79; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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