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== '''This page is under construction ...''' ==
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Test
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{{{
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# Test one
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#!html
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# Test two
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<div style="border: 3px solid #ccc;padding: 0 1em 0 1em;">
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# Test three
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}}}
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[[Image(ASL.jpg, 160px, class=align-left nolink)]]
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Electronic devices have traditionally been based on controlling the flow of charge. However, electrons carry both charge and “spin”, the latter being responsible for magnetic phenomena.
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Another test. Foo. Bar.
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Over the last decade or so, the fields of Spintronics and magnetism have evolved into one large field. This is primarily due to two key experimentally demonstrated phenomena: spin injection into metals/semiconductors from magnetic contacts and spin induced magnetization dynamics of magnets by spin transfer torque.
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These demonstrations suggest an all-spin approach to information processing. Magnets inject spins and spins turn magnets forming a closed “'''''ecosystem'''''” without the need to convert to charge. A recently proposed concept called '''''all spin logic''''' (ASL) uses magnets to represent non-volatile data and communicate between them using spin currents with the energy coming from the power supply.
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More testing. |
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ASL approach to information processing uses a formalism recently developed at Purdue University for integrated spin-magnet circuits. This approach is particularly powerful in that it combines various spin related phenomena such as spin-injection, spin-transport and spin-detection with that of magnet dynamics into one unified '''''spin-circuit''''' theory. This formalism does not use approximations in defining the elements of the spin-magnet circuit as usually done in defining compact models. At the same time, it is capable of modeling integrated circuits composed of many magnets interconnected with spin-coherent interconnects.
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Learn more about the ASL approach to information processing from the resources available on this site, listed below.
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==== Research Publications ====
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* B. Behin-Aein, D. Datta, S. Salahuddin and S. Datta, "''Proposal for and all-spin logic device with built-in memory'',"
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[http://www.nature.com/nnano/journal/v5/n4/abs/nnano.2010.31.html Nature Nanotechnology, ''5'', 266, (2010)]
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* B. Behin-Aein and S. Datta, "''All-spin logic'',"
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[http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=5551948&openedRefinements%3D*%26filter%3DAND%28NOT%284283010803%29%29%26searchField%3DSearch+All%26queryText%3Dall+spin+logic, Device Research Conference (DRC) 2010]
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* B. Behin-Aein, A. Sarkar, S. Srinivasan and S. Datta, "''Switching energy-delay of all spin logic devices''".
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[http://apl.aip.org/resource/1/applab/v98/i12/p123510_s1 Applied Physics Letters ''98'', 123510 (2011)]
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* S. Srinivasan, A. Sarkar , B. Behin-Aein and S. Datta, "''All-Spin Logic Device with inbuilt Non-Reciprocity''"
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[http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=6028133 IEEE Transactions on Magnetics, ''47'',4026 (2011)]
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* S. Srinivasan, A. Sarkar , B. Behin-Aein and S. Datta, "''Unidirectional information transfer with cascaded All Spin Logic devices: A Ring Oscillator''"
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[http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=5994470&openedRefinements%3D*%26filter%3DAND%28NOT%284283010803%29%29%26searchField%3DSearch+All%26queryText%3Dall+spin+logic, Device Research Conference (DRC) 2011]
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* A. Sarkar, S. Srinivasan, B. Behin-Aein and S. Datta, "''Modeling All Spin Logic:
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Multi-magnet Networks Interacting via Spin Currents''" To appear: International electron devices meeting (IEDM) technical digest (2011).
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