Abstract
Magnetization curves of La1.85Sr0.15CuO4 in fields slightly tilted from the ab plane exhibit an additional magnetization peak (AMP) in between the well-known first and second magnetization peaks. Measurements of the induction vector versus field reveals flux rotation from the ab plane towards the direction of the external field, beginning at the onset of the AMP. Characterization of the AMP and flux rotation as a function of temperature, time and tilting angle, shows a strong correlation between the two phenomena. This correlation is explained by considering variations in the magnetization caused by a tilt of the current flow plane associated with the flux rotation. Simulations of the magnetization curves based on the proposed model agree well with the experimental results.
Original language | English |
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Pages (from-to) | 759-760 |
Number of pages | 2 |
Journal | Physica C: Superconductivity and its Applications |
Volume | 460-462 II |
Issue number | SPEC. ISS. |
DOIs | |
State | Published - 1 Sep 2007 |
Bibliographical note
Funding Information:This research is supported by the Israel Science Foundation Program for Centers of Excellence (Grant No. 8003/02) and the Heinrich Hertz Minerva Center for High Temperature Superconductivity.
Funding
This research is supported by the Israel Science Foundation Program for Centers of Excellence (Grant No. 8003/02) and the Heinrich Hertz Minerva Center for High Temperature Superconductivity.
Funders | Funder number |
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Heinrich Hertz Minerva Center | |
Israel Science Foundation Program for Centers of Excellence | 8003/02 |
Keywords
- Flux rotation
- High temperature superconductors
- LaSrCuO
- Magnetic anisotropy
- Magnetization curves