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magnetic saturation
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A graph showing the magnetization of a paramagnetic substance approaching saturation along a Brillouin curve, with separate data series for temperatures 1.30 K, 2.00 K, 3.00 K, and 4.21 K. The y-axis shows Bohr magnetons per ion, and the x-axis shows B/T in teslas per degree. Three curves labeled I, II, and III demonstrate higher saturation at lower temperatures.
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magnetic saturation

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A graph showing the magnetization of a paramagnetic substance approaching saturation along a Brillouin curve, with separate data series for temperatures 1.30 K, 2.00 K, 3.00 K, and 4.21 K. The y-axis shows Bohr magnetons per ion, and the x-axis shows B/T in teslas per degree. Three curves labeled I, II, and III demonstrate higher saturation at lower temperatures.
magnetization of paramagnetic substances Figure 15: The approach to saturation in the magnetization of a paramagnetic substance following a Brillouin curve. Curves I, II, and III refer to ions of chromium, potassium alum, iron ammonium alum, and gadolinium sulfate octahydrate for which g = 2 and j = 3/2, 5/2, and 7/2, respectively.

Magnetic saturation occurs when a ferromagnetic material, such as iron, nickel, or cobalt, reaches its maximum possible magnetization. In these materials, atomic magnetic moments align with an applied external magnetic field. As the field strength increases, more atomic moments align, increasing the material's magnetization. However, this alignment cannot continue indefinitely.

Eventually, a point is reached where nearly all available atomic magnetic moments are aligned with the field. This state is called magnetic saturation. Beyond this point, further increases in the external magnetic field strength do not significantly increase the material's magnetization. The magnetization M is no longer proportional to the applied field strength H. This phenomenon is crucial in understanding how ferromagnetic materials behave in magnetic fields and is related to concepts like magnetic flux density (B) and magnetic permeability (μ).123

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8 Britannica Sources
  1. magnetic field strength
  2. magnetism - Magnetization effects in matter
  3. How Do Magnets Work?
  4. ferromagnetism
  5. magnet
  6. saturation factor
  7. magnetic susceptibility
  8. magnetism - Induced and permanent atomic magnetic dipoles

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