Search for dissertations about: "Johan Åkerman"
Showing result 11 - 14 of 14 swedish dissertations containing the words Johan Åkerman.
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11. Fabrication and Characterization of magnetometer for space applications
Abstract : The present rapid increase in the number of space missions demands a decrease in the cost of satellite equipment, but also requires the development of instruments that have low power consumption, low weight, and small size.Anisotropic magnetoresistance (AMR) sensors can answer these needs on account of their small size, weight, and power consumption. READ MORE
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12. Fabrication and Characterization of Nanocontact Spin-Torque Oscillators
Abstract : The manufacturing of nanocontact-based spin-torque oscillators (NC-STOs)has opened the door for spintronic devices to play a part as active microwaveelements. The NC-STO has the capability of converting a direct current intoa microwave signal, and vice versa, by utilizing the spin transfer torque (STT)in ferromagnetic multilayer systems. READ MORE
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13. Spin momentum transfer effects for spintronic device applications
Abstract : The recent discovery that a spin-polarized current can exert a large torque on a ferromagnet, through direct transfer of spin angular momentum, offers the possibility of electrical current controlled manipulation of magnetic moment in nanoscale magnetic device structures. This so-called spin torque effect holds great promise for two applications, namely, spin torque oscillators (STOs) for wireless communication and radar communication, and spin transfer torque RAM (STT-RAM) for data/information storage. READ MORE
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14. Utility Theory and Structural Analysis. Essays in the History of Swedish Economic Thought
Abstract : The first paper in this study is "Cassel and Revealed Preference Theory." The background to the paper is the general agreement that P. Samuelson originated the revealed preference theory of consumer behaviuor in 1938, but that there has not been such unanimous consent regarding possible precursors of the theory. READ MORE