Spintonics Flashcards
(25 cards)
What is spintronics?
A field of technology that utilizes the intrinsic spin of electrons, in addition to their charge, for information processing.
True or False: Spintronics relies solely on the charge of electrons.
False
Fill in the blank: In spintronics, the two states of electron spin are often referred to as _____ and _____.
up, down
What is the primary advantage of spintronic devices over traditional electronic devices?
Higher speed and lower power consumption.
What material is commonly used in spintronic applications?
Ferromagnetic materials.
Multiple Choice: Which of the following is a key component of spintronic devices? A) Capacitors B) Spin valves C) Resistors
B) Spin valves
What is a spin valve?
A device that exploits the difference in electrical resistance depending on the relative orientation of electron spins.
True or False: Spintronic devices can potentially replace conventional transistors.
True
What role does spin polarization play in spintronics?
It enhances the efficiency of spin transport and manipulation in devices.
Fill in the blank: Spintronic devices can be used in _____ memory technologies.
non-volatile
What is the term for the phenomenon where the spin of electrons can be manipulated by an external magnetic field?
Spin manipulation.
Multiple Choice: Which of the following is NOT a potential application of spintronics? A) Quantum computing B) Flash memory C) Biochemical sensors
C) Biochemical sensors
What is the significance of the term ‘spin-orbit coupling’ in spintronics?
It describes the interaction between an electron’s spin and its motion, crucial for spintronic effects.
True or False: Spintronic devices are limited to data storage applications.
False
What is a magnetic tunnel junction (MTJ)?
A structure consisting of two ferromagnetic layers separated by an insulating layer, used in spintronic applications.
Fill in the blank: The efficiency of spintronic devices can be improved through the use of _____ materials.
topological insulator
What does MR stand for in the context of spintronics?
Magnetoresistance.
Multiple Choice: Which of the following describes a potential future benefit of spintronics? A) Increased heat generation B) Enhanced data processing speed C) Decreased data storage capacity
B) Enhanced data processing speed
What is the primary mechanism behind giant magnetoresistance (GMR)?
The change in electrical resistance due to the alignment of magnetic layers.
True or False: Spintronic technology is fully developed and commercially available.
False
What is the role of spin currents in spintronics?
They are used to transport and manipulate information based on electron spins.
Fill in the blank: The study of spintronics combines principles from _____ and _____ physics.
solid-state, quantum
What is a spin-based transistor?
A type of transistor that uses electron spin for operation, potentially allowing for faster and more efficient devices.
Multiple Choice: Which effect is utilized in spintronic devices for read operations? A) Photoelectric effect B) Spin Hall effect C) Thermal effect
B) Spin Hall effect
