Spin Orbital Coupling Flashcards
(25 cards)
What is spin-orbit coupling?
It is an interaction between a particle’s spin and its orbital motion.
True or False: Spin-orbit coupling only occurs in electrons.
False
What are the key components involved in spin-orbit coupling?
Spin angular momentum and orbital angular momentum.
Fill in the blank: Spin-orbit coupling is significant in _____ systems.
atomic and solid-state
Which quantum number is associated with orbital angular momentum?
The azimuthal quantum number (l).
What is the effect of spin-orbit coupling on atomic energy levels?
It leads to the splitting of energy levels.
Multiple choice: Which phenomenon is a direct consequence of spin-orbit coupling? A) Zeeman effect, B) Stark effect, C) Fine structure
C) Fine structure
How does spin-orbit coupling influence magnetic properties of materials?
It affects the alignment of spins in the presence of an external magnetic field.
True or False: Spin-orbit coupling does not affect the spin state of a system.
False
What is the role of the Dirac equation in spin-orbit coupling?
It describes the relativistic effects of particles with spin.
Fill in the blank: The coupling strength of spin-orbit interaction is proportional to _____ of the nucleus.
the atomic number
Which type of material typically exhibits strong spin-orbit coupling?
Heavy elements.
Define the term ‘spin-orbit interaction’.
It refers to the interaction between the spin of a particle and its motion through space.
Multiple choice: What can spin-orbit coupling lead to in topological insulators? A) Insulating behavior, B) Conducting behavior, C) Both A and B
C) Both A and B
What is the significance of spin-orbit coupling in quantum computing?
It can be utilized for qubit manipulation and control.
True or False: Spin-orbit coupling is always a weak interaction.
False
What is a common method to study spin-orbit coupling in materials?
Angle-resolved photoemission spectroscopy (ARPES).
Fill in the blank: The Hamiltonian for spin-orbit coupling includes terms from both _____ and _____.
spin and orbital angular momentum
What is one application of spin-orbit coupling in condensed matter physics?
Understanding the electronic properties of materials.
Multiple choice: Which of the following best describes the impact of spin-orbit coupling on electron bands? A) Band gap narrowing, B) Band inversion, C) No impact
B) Band inversion
How does spin-orbit coupling affect the lifetime of excited states?
It can shorten the lifetime due to increased coupling with other states.
True or False: Spin-orbit coupling is irrelevant in low-dimensional systems.
False
What is ‘Rashba effect’ in the context of spin-orbit coupling?
It refers to the spin splitting of electronic states in a system with structural inversion asymmetry.
Fill in the blank: Spin-orbit coupling is critical in the study of _____ materials.
ferromagnetic
