Giant magnetostriction and magnetostriction jumps in superconducting single crystalline La1.85Sr0.15CuO4
UNSPECIFIED. (1997) Giant magnetostriction and magnetostriction jumps in superconducting single crystalline La1.85Sr0.15CuO4. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 10 (10). pp. 786-793. ISSN 0953-2048Full text not available from this repository.
We have studied magnetostriction in single crystalline La1.85Sr0.15CuO4 using the strain gauge technique in magnetic fields up to 12 T at temperatures 4.2 K < T < 35 K. We have observed giant transverse magnetostriction (of the order of 10(-4) at 4.2 K) for magnetic field B parallel to c and longitudinal magnetostriction (of the order of 10(-5) at 4.2 K) for B perpendicular to c orientation. Pronounced jumps in transverse magnetostriction have been observed in the temperature range between 4.2 K and 8.5 K. Experimental magnetostriction results are compared with magnetization measurements using a vibrating sample magnetometer and gradientometric Hall sensors measurements. The calculations were performed on the basis of a pinning-induced mechanism of magnetostriction. The simple adiabatic theory seems to be insufficient to describe the observed flux instabilities.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||SUPERCONDUCTOR SCIENCE & TECHNOLOGY|
|Publisher:||IOP PUBLISHING LTD|
|Official Date:||October 1997|
|Number of Pages:||8|
|Page Range:||pp. 786-793|
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