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In condensed matter and atomic physics, Van Vleck paramagnetism refers to a positive and temperature -independent contribution to the magnetic susceptibility of a material, derived from second order corrections to the Zeeman interaction.
Lecture: Basics of Magnetism: Paramagnetism. Hartmut Zabel Ruhr-University Bochum Germany. Content. Orbital moments. Spin orbit coupling. Zeeman splitting. Thermal Properties – Brillouin function. High Temperature – low temperature approximation. Van Vleck paramagnetism. Paramagnetism of conduction electrons. Orbital moments of the d-shell. mz. Hz.
Van Vleck paramagnetism is as universal a magnetic property of solids as diamagnetism. It is caused by the elastic deformation of the electron shell of an atom or ion by an external magnetic field, giving rise to an induced magnetic moment.
Nobel Lecture, 8 December, 1977. J.H. VAN VLECK. Harvard University, Cambridge, Massachusetts, USA. The existence of magnetic materials has been known almost since prehistoric times, but only in the 20th century has it been understood how and why the magnetic susceptibility is influenced by chemical composition or crystallo-graphic structure.
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van-Vleckscher Paramagnetismus, von J.H. van Vleck berechneter Beitrag zur paramagnetischen Suszeptibilität durch Übergänge der Elektronen zu höheren Multipletts. Der van-Vlecksche Anteil ist temperaturunabhängig und klein gegenüber der Suszeptibilität durch die permanenten Magnetmomente der Atome. Er kommt auch nur in manchen Substanzen ...
19. Apr. 2022 · van Vleck paramagnetism. Our discussion of paramagnetism thus far has considered only the affect of an applied magnetic field on electrons in their angular momentum ground state. However,...
1. Nov. 2010 · The Van Vleck paramagnetism, with the ground state of 7 F 0 (S=3, L=3), has been investigated comprehensively. The temperature independent paramagnetism emerges manifestly below approximately 100 K.
