Half levitation of LK-99 and locked levitation of high-temperature superconductors

CHEN Du-Xing

doi:10.7693/wl20231005

PHYSICS > 2023 > 52(10): 695-704. > DOI: 10.7693/wl20231005

CHEN Du-Xing. Half levitation of LK-99 and locked levitation of high-temperature superconductors[J]. PHYSICS, 2023, 52(10): 695-704. DOI: 10.7693/wl20231005

Citation:

CHEN Du-Xing. Half levitation of LK-99 and locked levitation of high-temperature superconductors[J]. PHYSICS, 2023, 52(10): 695-704. DOI: 10.7693/wl20231005

Citation:

CHEN Du-Xing. Half levitation of LK-99 and locked levitation of high-temperature superconductors[J]. PHYSICS, 2023, 52(10): 695-704. DOI: 10.7693/wl20231005

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Half levitation of LK-99 and locked levitation of high-temperature superconductors

CHEN Du-Xing^,

Department of Physics, Autonomous University of Barcelona, Bellaterra 08193, Spain

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Received Date: September 27, 2023
Available Online: October 20, 2023

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Abstract

Abstract

Based on laws in electromagnetism and superconductivity and relevant experimental results, it is explained that the half levitation of the so-called room-temperature ambient-pressure superconductor LK-99 above the upper pole face of a permanent magnet disk originates from the torque and force on the ferromagnetic impurities located in a nonuniform applied magnetic field. The locked levitation or suspension of a coated Y-Ba-Cu-O conductor sample above or below the disk is due to the position recovering Lorentz force on the supercurrent induced by sample movement in the non-uniform field, not to the Meissner effect and so-called quantum locking.
- high-temperature superconductor,
- locked levitation,
- Meissner effect,
- critical current,
- Lorentz force

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Half levitation of LK-99 and locked levitation of high-temperature superconductors

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