Lectures in course PHYS-491: Magnetism in materials

Magnetic Spin: Elementary Particles and Quantum Effects

Covers magnetic spin, elementary particles, quantum effects, and the Dirac equation.

Isolated Magnetic Moments: Overview

Explores the behavior of atoms in a magnetic field and their magnetic response.

Isolated Magnetic Moments: Canonical Momentum

Explores the intrinsic spin of electrons, angular momentum, magnetic fields, and canonical momentum.

Isolated Magnetic Moments: An Atom In Magnetic Field

Explores the Hamiltonian of an atom in a magnetic field and its paramagnetic and diamagnetic responses.

Isolated Magnetic Moments: Magnetic Susceptibility

Explores the concept of magnetic susceptibility as a tensor of proportionality between magnetization and the magnetizing field.

Isolated Magnetic Moments: Diamagnetism

Explores the derivation of diamagnetic susceptibility using perturbation theory for isolated magnetic moments.

Isolated Magnetic Moments: Paramagnetism

Covers the derivation of the Brillouin function for isolated magnetic moments.

Isolated Magnetic Moments: Langevin, Curie Law

Delves into the Langevin and Curie law limits of magnetic moments.

Van Vleck Paramagnetism

Discusses Van Vleck paramagnetism, a hybrid response from high lying states.

Isolated Magnetic Moments: Hund's Rules

Explains isolated magnetic moments and Hund's rules for lanthanides, discussing deviations for Samarium and Europium.

Isolated Magnetic Moments: Lande Factor

Explains the derivation of the Lande g-factor, which is the total magnetization of a system.

Untitled

Isolated Magnetic Moments: Spin-Orbit Coupling

Explores spin-orbit coupling, its origin in fine structure observation, and its dependence on angular momentum.

Isolated Magnetic Moments: Nuclear Spins

Explores nuclear spins, hyperfine interaction, and magnetic resonance imaging techniques.

Crystal Field Effects: Overview

Explores crystal field effects, from orbitals in charged environments to spin states in transition metals.

Crystal Field Effects: Orbitals And Charged Environment

Explores the influence of a charged environment on the energies of individual 3d orbitals.

Crystal Field Effects: Octahedral Environment

Explores crystal field effects in an octahedral environment with 6 ligands surrounding the metal ion.

Crystal Field Effects: High Spin Low Spin

Discusses the transition between high spin and low spin states in crystal field effects on d orbitals.

Crystal Field Effects: Orbital Quenching

Discusses the impact of crystal field effects on 3d ions' angular momentum.

Crystal Field Effects: 4f Orbitals

Delves into the crystal field effects on 4f states, analyzing odd and even electron numbers and their impact on energy differences and magnetic ground states.