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Esprit Project 23307 - SPIDER
Spin Dependent Nano-Electronics

Keywords: MEL-ARI Nano-Scale ICs, Magnetic/semiconductor Quantum structures, Vertical Spin Transistor, Lateral Spin Transistor, Magnetically Modulated Semiconductor Transport device


The magneto-electronic devices find their application in many electronic circuits. There is strong interest today for smart sensors and magnetic read heads. But also, first magnetic solid state memories have been demonstrated, opening the exciting field of integrated magneto-electronics. Other circuits such as (magnetically) programmable logic and reconfigurable I/O will generate industrial interest if the device concepts can be fully developed. SPIDER will provide new developments and secure a strong European presence in the field of integrated magneto-electronics, where US and Japan are already taking initiative.

The project aims to study and develop quantum effect low-power nano-scale devices based on spin-dependent transport and magnetic interactions in semiconductor quantum structures. These devices will be fabricated using innovative solutions for integration of artificial magnetic nanostructured films and multilayers in semiconductor components.

Four main objectives are defined:

It is the intention to combine expertise in semiconductor quantum structures and nano-magnetics to target the field of magneto-electronics as an important and potentially useful class of quantum devices.

We propose to study and develop three device implementations based on spin-dependent transport or magnet/semiconductor interactions, of which proof-of-principle demonstrations have been made. These device implementations will be developed along parallel routes each covering nano-technology, device physics and device development and characterisation.

Magneto-electronic devices offer potential for application in future nano-electronic circuits. We will work on aspects that will facilitate the use of the new device concepts in future circuits. These include the nano-magnetism studies, on-chip magnetisation reversal and power/speed aspects. Design and simulation tasks will be undertaken on selected circuit option where (programmable) magneto-electronic devices will be useful: magnetic non-volatile memories, programmable logic gates or reconfigurable Input/Output circuits.

Contact Point
Dr. Jo De Boeck
Interuniversity Microelectronics Centre (IMEC)
Materials And Packaging (MAP)
Kapeldreef 75
B - 3001 Leuven

e-mail: (E-mail removed)

Start date: 1 January 97
Duration: 36 months

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