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Race track nanomagnetic memory

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Quick Intro

1. In this world there is a time to time improvement in

the electronics field.One such improvement in this

field is"RACE TRACK NANOMAGNETIC MEMORY

replacing the present day solid state HARD DISKDRIVES and FLASHMEMORIES.

2. This can bring a new revolution with its extraordinaryfeatures like:

Great improvement in storage capacity of the systemwhen compare to the normal HDD and FLASH

memories .

Decrease in the cost per GB of memory

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This new class of memory named "racetrack" is internally built

with a u-shaped nanomagnetic wire through which a polarized

electric current is made to slide orrace" through tiny magneticpatterns around the nanowire "track," where the device can read

and write data in less than a nanosecond.

Magnetic race track memory at nano levelNano racetrack

Before going to know about how this memory works lets know about

SPINTRONICS

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Spintronics

(Putting electronics in a spin) the storage of bits generated by the

magnetic spin of electrons rather than their charge .

POLARISED CURRENT: It is the current with charge particles spinning

only one sense which in-turn produce Magnetic field

Inside the hard driveSpintronics harnesses the

spin of sub-atomic particles

Spintronics

used in MRAM devices

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Construction:-

It consists of a Nano

magnetic material

which is in U-shape.

It consists of two

tracks. First track: Polarized current

passes through it

Second track: For storing the

domain wall pattern

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How it works:-

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Applications:-

1. Significant role in high density datastorage,microelectronics, and Bio-medical applications etc.

2. This project will bring together expertises in several

different disciplines and will carry out collaborative researcharea .

3.Particularly attractive for memory storage. An mp3 playercan store 3500 movies and 500000 songs.

4.Applications in magnetic sensors.

5.Potenially used in quantum computing where electron spinwould represent a bit (called qubit ) of information.

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Advantages:-

The promise of racetrack memory - for example, the ability to carry

massive amounts ofinformation in your pocket - could unleash creativity

leading to devices and applications that nobody has imagined yet."

Due to this extraordinary features it replaces the present flash and hard

disk memory

Its cheapercompared to other memory devices existing today .

As there are no moving parts the power consumption is less when

compared to other devices which comprises of movable parts.

The life time of device is considerably very long when compared to

other devices

Massless motion

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REFERENCES

www.ieee.org

www.ibm.com www.nanotechnow.com

www.physorg.com

www.almaden.ibm.com

www.sikod.com

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Thankingu

By

Y.Ramesh Kumar

T.Raviteja