Related Experiment Video
Updated: Jan 1, 2026
08:50
High-Speed Magnetic Tweezers for Nanomechanical Measurements on Force-Sensitive Elements
Published on: May 12, 2023
2.7K
Magnetic Tunnel Junction Applications
Nilson Maciel1, Elaine Marques1, Lírida Naviner1
1LTCI, Télécom Paris, Institut Polytechnique de Paris, 91128 Palaiseau, France.
Sensors (Basel, Switzerland)
|December 28, 2019
Summary
Spin-based devices like Magnetic Tunnel Junctions (MTJs) offer energy efficiency and overcome CMOS limitations. This survey explores diverse MTJ applications in components like memory and converters.
Area of Science:
- Spintronics
- Materials Science
- Electrical Engineering
Background:
- Spin-based electronics offer enhanced energy efficiency by reducing leakage.
- Magnetic Tunnel Junctions (MTJs) are key components in overcoming CMOS downscaling challenges.
- MTJs exhibit nonvolatility, scalability, and low power consumption, making them attractive for various applications.
Purpose of the Study:
- To provide a comprehensive survey of Magnetic Tunnel Junction (MTJ) applications.
- To highlight the advantages of MTJs in overcoming current technological limitations.
- To explore the potential of MTJs in emerging electronic components.
Main Methods:
- Literature review of recent research on MTJ applications.
- Analysis of MTJ properties relevant to device performance.
- Categorization and discussion of selected MTJ applications.
Main Results:
- MTJs show significant promise in advanced memory technologies.
- Applications in analog-to-digital converters demonstrate MTJ's versatility.
- The survey covers a range of components where MTJs offer superior performance.
Conclusions:
- MTJs are a viable technology for next-generation electronic devices.
- Their unique properties enable solutions for energy efficiency and scalability.
- Further research into MTJ applications will drive innovation in electronics.
Related Concept Videos
01:27Magnetic Fields
7.0K
A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...
A magnetic field is defined by the force that a charged particle experiences...
7.0K
01:30Magnetism
8.0K
Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows that all magnets have two poles: one is labeled north (N) and the other south (S). Magnetic poles repel if they are alike and attract if unlike. Moreover, both poles of a magnet attract unmagnetized pieces of iron.
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
8.0K
01:24Metal-Semiconductor Junctions
825
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
825
01:16Magnetic Field Of A Current Loop
6.1K
Consider a circular loop with a radius a, that carries a current I. The magnetic field due to the current at an arbitrary point P along the axis of the loop can be calculated using the Biot-Savart law.
6.1K
01:13Torque On A Current Loop In A Magnetic Field
5.6K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
5.6K
01:29Field Effect Transistor
1000
Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
1000