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Effects on magnetic field of materials at supercooled temperatures using liquid Nitrogen?

1Patriot

Was curious as to how much the magnetic field of a Neodymium magnet, at those temperatures.

Another question is the effect of the field from within a superconductive material such as YBCO, as in it allowed to travel through the material, or is it reflected/focused within?

  • 0

    Magnetic materials can lose their magnetism above their Curie temperature but should be okay (usually better) at lower temperatures. Neodymium might lose 20% below -138C.

  • 0

    The magnetic field of a neodymium magnet does not change significantly with temperature, at least not at typical operating temperatures.

    The magnetic field within a superconductive material such as YBCO can be allowed to travel through the material, but the way it behaves depends on the specific properties of the superconductor. In general, superconductors are materials that can conduct electricity with zero resistance when they are cooled below a certain critical temperature. When a magnetic field is applied to a superconductor, it can either be expelled from the material or allowed to penetrate it, depending on the strength of the field and the critical current density of the material.

    In the case of YBCO, it is a type II superconductor, which means that it can allow magnetic fields to penetrate the material in the form of quantized vortices. These vortices can move through the material without dissipating energy, but they can interact with each other and with defects in the material, which can lead to losses in the superconducting properties. However, by controlling the geometry and composition of the superconductor, it is possible to optimize its performance and minimize these losses.

  • 0 in reply to bidrohini

    Thank you.

    Am curious about a counterpart to YBCO that repells a magnetic field at critical K temp?