Magnetism

Page 1

Diamagnetic materials M = χH

CS: 30.10

B = (1 + χ ) µ 0 H

Susceptibility is small (weak) and negative: χ < 0 → µ < µ0. Linear response (χ independent of H): no permanent M when H = 0. Susceptibility (χ) smaller at high-T due to thermal disorder. All materials are weakly diamagnetic if they lack atomic moments. When moments are present, diamagnetism isn’t noticeable. Weakly repelled from a magnetic field.

http://www.physics.ucla.edu/marty/diamag/


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.