Spintronics is the new technology that is used in nano technology or difficult projects.The rotation of electrons is called Spintronics.I hoped this topic is useful for you and your study.

1. Spintronics Technology
• Submitted To - Er. Manvendra
& Er. Ashok A.
• Department - Electronics & Comm.
Engineering
• Submitted By -
Saurabh Kesarwani
• ID - 16BTECE014
• Programme - B.Tech (ECE)

2. CONTENTS
• Introduction
• Advantages Of Spintronics
• Why Spintronics?
• Applications Of Spintronics
• Devices Of Spintronics
• Future Demands
• Principles Of Spintronics
• Conclusion
• References

3. Introduction
• Rotation of electrons is called Spintronics.
• Spintronics is a NANO technology which deals with spin dependent
properties of an electron instead of charge dependent properties.
• Spin is a quantum mechanical property.
• The rotational moment creates a smallmagnetic field.
• The electron spin given a direction up or down.
• The up and down direction given a of (1) or (0) same thing as the electron
positive or negative charge correspond to those values.

4. Advantages Of Spintronics
• Low power consumption.
• Less heat dissipation.
• Spintronic memory is non-volatile.
• Takes up lesser space on chip, thus more compact.
• Spin manipulation is faster , so greater read & write speed.
• Spintronics does not require unique and specialized semiconductors.
• Common metals such as Fe, Al, Ag , etc. can be used.

5. Why Spintronics?
• Moore’s Law:
No. of Transistor doubles in every 18 months.
• Complexity:
Complex Chip Design & Power Loss.
• Motivation:
Spintronics - Information is carried not by electron charge but by it’s spin.

6. Applications Of Spintronics
• Spintronics is used in the medical field to detect cancer.
• Spintronic technology in general holds promises for digital electronics. It
has been tested in mass-storage components namely hard drives.

7. Devices Of Spintronics
• MRAM (Magnetoresistive Random Access Memory)
• Spin Transistor
• Quantum Computer

8. MRAM
• MRAM uses magnetic storage elements instead of electric used in
conventional RAM
• Tunnel junctions are used to read the information stored in
Magnetoresistive Random Access Memory, typically a”0” for Zero point
magnetization state and “1” for antiparallel state

9. Spin Transistor
• Current passed through a magnetic field becomes spin polarized.
• Ideal use of MRAM would utilize control of the spin channels of the
current.
• Spin transistors would allow control of the spin current in the same
manner that conventional transistors can switch charge currents.
• Using arrays of these spin transistors, MRAM will combine storage,
detection, logic and communication capabilities on a single chip.
• This will remove the distinction between working memory and storage,
combining functionality of many devices into one

11. Quantum Computer
• A quantum computer, in contrast, lies on encoding information within t
quantum bits or qubits, each of which can exist in a superposition of
‘0’and ‘1’.

12. Future Demands
• Moore’s law states that the numbers of transistors on a silicon chip will
roughly double every eighteen months.
• As electronic devices become smaller, quantum properties of the wave
like nature of electrons are no longer negligible.
• Spintronic devices offer the possibility of enhanced functionality, higher
speed, and reduced power consumption.

13. Principle Of Spintronics
• Spintronics is based on the spin of electrons rather than its charge.
• Every electron exist in one of the two states- spin-up and spin-down, with
spins either positive half or negative half.
• In other words, electrons can rotate either clock wise or anti-clockwise
around its own axis with constant frequency.
• The two possible spin states represent ‘0’ and ‘1’ in logical operations.

14. Conclusion
• This technology will exploit the spin of the electron and create new
devices and circuits which could be more beneficial in future by providing
devices like memories for data base accessing with the speed of light.The
devices of this technology are very useful for transaction processing and
for scientific number crunching.

15. References
• https://en.wikipedia.org/wiki/Spintronics
• http://www.scind.org/771/Technology/shift-from-electronics-to-
spintronics.html
• https://www.slideshare.net/AkhileshJhanwar/spintronics-ppt-3350859
• www.google.com
• https://studymafia.org/