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Visar resultat 1 - 5 av 36 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Spin Transport in Two-Dimensional Material Heterostructures

    Författare :André Dankert; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Black phosphorous; Topological insulator; h-BN; Silicon; Transistor; Spintronic; MoS2; Graphene; 2D materials; Spin polarized tunnelling; Schottky barrier;

    Sammanfattning : Spintronics is considered as an alternative for information processing beyond the charge based technology. The spintronic device performance depend on the spin relaxation mechanisms in the channel material. Si and graphene are interesting for their long spin coherence lengths and ideal for spin transport channels. LÄS MER

  3. 2. Spintronic and Electronic Oscillators for Magnetic Field Sensing and Ising Machines

    Författare :Dagur Ingi Albertsson; Ana Rusu; Johan Åkerman; Saul Rodriguez Duenas; Atila Alvandpour; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Spintronic Oscillator; Behavioural Modeling; Macrospin Approximation; Magnetic Field Sensor; Ising Machine; Duffing Oscillator; Kuramoto Model; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Oscillators can exhibit a range of complex dynamics which are often encountered in nature. These characteristics include synchronization, injection locking, chaos, bifurcations, etc. To date, the applications of electronic oscillators has mostly been limited to communication systems. LÄS MER

  4. 3. Intricacy and Stability of Graphene Spintronic Devices

    Författare :Daria Belotcerkovtceva; M. Venkata Kamalakar; Samuel Lara Avila; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Graphene, the first experimentally isolated atomically thin crystal has displayed numerous superlative properties for quantum and spin-based electronics, as evidenced by research results of more than a decade. The scalable form of graphene, produced by the chemical vapor deposition (CVD) method has been increasingly attracting scientific and technological interest, as outstanding properties are combined with large scalability and high quality. LÄS MER

  5. 4. Dynamics and Intrinsic Variability of Spintronic Devices

    Författare :Corrado Carlo Maria Capriata; B. Gunnar Malm; Per-Erik Hellström; Dan Kuylenstierna; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Spintronics; micromagnetic simulations; SHNO; MTJ; microwave measurements; realistic simulations; low-temperature measurements; fabrication; grains; Spinntronik; mikromagnetiska simuleringar; SHNO; MTJ; mikrovågsmätningar; realistiska simuleringar; lågtemperaturmätningar; nanotillverkning; korn; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Spintronics is a scientific domain focusing on utilizing electron spin for information processing. This is the element that distinguishes it from electronics, which only utilizes the charge of electrons. LÄS MER

  7. 5. Spin momentum transfer effects for spintronic device applications

    Författare :Yan Zhou; Johan Åkerman; Daniel E. Bürgler; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spin Torque Oscillator; Giant Magnetoresistance; Tunneling Magnetoresistance; Magnetism; Magnetism;

    Sammanfattning : 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. LÄS MER