Magnetic anomalies in La1.85Sr0.15CuO4 crystals under tilted fields

Yishay Bruckental, Avner Shaulov, Yosef Yeshurun

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)759-760
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume460-462 II
Issue numberSPEC. ISS.
DOIs
StatePublished - 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.

FundersFunder number
Heinrich Hertz Minerva Center
Israel Science Foundation Program for Centers of Excellence8003/02

    Keywords

    • Flux rotation
    • High temperature superconductors
    • LaSrCuO
    • Magnetic anisotropy
    • Magnetization curves

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