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S3P2. Students will investigate magnets and how they affect other
S3P2. Students will investigate magnets and how they affect other

A rotating coil - Collins.co.uk.
A rotating coil - Collins.co.uk.

MRAM (MagnetoResistive Random Access Memory)
MRAM (MagnetoResistive Random Access Memory)

... New airbag systems also have sensors to detect and record passenger weight, interactions with other safety devices on the vehicle and the impact of collision.  Other automotive systems such as odometers, tire pressure log and ABS require frequent writes to memory that easily exceed the write-erase ...
resistance: Ohm`s Law
resistance: Ohm`s Law

High temperature superconductors are the materials with T c value
High temperature superconductors are the materials with T c value

Magnetic field lines
Magnetic field lines

... in an external magnetic field so that its velocity is perpendicular to the field  The force is always directed toward the center of the circular path  The magnetic force causes a centripetal acceleration, changing the direction of the velocity of the particle ...
Short Questions and Answers
Short Questions and Answers

... Q1 : Explain why steel cannot be used as core for an electromagnet. [2] A1 : Steel is a hard magnetic material. It is difficult to be magnetized and difficult to be de-magnetised. For an electro-magnet, the core must be easily magnetized when electric current is flowing around the core and the core ...
Notes on Magnetism
Notes on Magnetism

... became important for us to measure pole strength, it is very much important for us to measure magnetic field because at different points the magnetic forces are different.The question how much is the field is more important than whether field exists or not. We quantify the magnetic field as follows: ...
= 1.7×10 Ω·m and α = 0.0039/°C.
= 1.7×10 Ω·m and α = 0.0039/°C.

CHEM1102 Worksheet 12 – Answers to Critical Thinking Questions
CHEM1102 Worksheet 12 – Answers to Critical Thinking Questions

... CO32- is a weak base and will become protonated at low pH. This will lead to it detaching from the iron. ...
Answers to Critical Thinking Questions 12
Answers to Critical Thinking Questions 12

... CO32- is a weak base and will become protonated at low pH. This will lead to it detaching from the iron. ...
Introduction State vectors
Introduction State vectors

1. Electrostatics - University of Colorado Boulder
1. Electrostatics - University of Colorado Boulder

... We’ve already discussed two circuit components, inductors and capacitors. Other basic components include batteries and resistors. A battery’s entire purpose is to maintain a constant potential difference between its terminals. Resistors are exactly that, parts of the circuit that resist current flow ...
Is magnetogenetics the new optogenetics?
Is magnetogenetics the new optogenetics?

... brink of extinction, about to succumb to human ingenuity and advances in technology. Unfortunately, the current incarnations of magnetogenetics have a number of major issues. First, it is unclear how those that rely on genetically encoded ferritin nanoparticles, actually work. Whether it is a mechan ...
Magnetism - PearsonGreatPath
Magnetism - PearsonGreatPath

Presentation on Electric Field
Presentation on Electric Field

Current And Resistance
Current And Resistance

SNC1D1 Resistance
SNC1D1 Resistance

Powerpoint
Powerpoint

... Resistivity It is also experimentally observed (and justified by quantum mechanics) that the resistance of a metal wire is well-described by ...
Propagation of nonlinearly generated harmonic spin waves in
Propagation of nonlinearly generated harmonic spin waves in

... age magnetization along y My0 ¼ MS  M1S ðm2x þ m2z Þ. In Figure 6(c), my(t) is represented as well as the dipolar magnetic field that it generates. The anti-symmetric planes of this dipolar magnetic field are represented by white lines. This dipolar magnetic field, generated by the MsSW at a freque ...
An Activity You Can`t Resist
An Activity You Can`t Resist

... V = I × R. To solve for any single value in this equation when the other two are known, use Figure 1 and cover up the unknown value with a pencil eraser. Then, solve the mathematical equation by performing the mathematical operation indicated by the position of the remaining letters. Thus, to find v ...
Magnets - BAschools.org
Magnets - BAschools.org

... countries- and sometimes not all regions within the same country- generate the same voltage and frequency in their electricity. ...
Chapter 30
Chapter 30

CHAPTER 25
CHAPTER 25

chapter19_PC
chapter19_PC

... by one electron in an atom is often canceled by an oppositely revolving electron in the same atom ...
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Giant magnetoresistance



Giant magnetoresistance (GMR) is a quantum mechanical magnetoresistance effect observed in thin-film structures composed of alternating ferromagnetic and non-magnetic conductive layers. The 2007 Nobel Prize in Physics was awarded to Albert Fert and Peter Grünberg for the discovery of GMR.The effect is observed as a significant change in the electrical resistance depending on whether the magnetization of adjacent ferromagnetic layers are in a parallel or an antiparallel alignment. The overall resistance is relatively low for parallel alignment and relatively high for antiparallel alignment. The magnetization direction can be controlled, for example, by applying an external magnetic field. The effect is based on the dependence of electron scattering on the spin orientation.The main application of GMR is magnetic field sensors, which are used to read data in hard disk drives, biosensors, microelectromechanical systems (MEMS) and other devices. GMR multilayer structures are also used in magnetoresistive random-access memory (MRAM) as cells that store one bit of information.In literature, the term giant magnetoresistance is sometimes confused with colossal magnetoresistance of ferromagnetic and antiferromagnetic semiconductors, which is not related to the multilayer structure.
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