Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 44 for “"Spin-based"”.
-
Reliable spin-based computing systems
… computational scaling beyond the electronics based on Moore's law requires the adoption of alternate state variables including spin. Spin based devices offer several advantages such as low device count and non-volatility, and have the potential to beat the energy-delay product of CMOS. …
-
Interfacing spin-based quantum sensors with complex systems
… that enable quantum sensing via optically active spin ground states. They have demonstrated high sensitivity in thermometry and magnetometry, reaching a temperature precision of 5mK/√Hz and magnetic field sensitivity of a single nuclear spin. Due to their nanometer size and ability to be …
-
Nanoscale engineering of spin-based quantum devices in diamond
… quantum phase coherence in their electron spin degrees of freedom, available highfidelity control and readout at the single-spin level, and strong interactions with other quantum systems such as photons. In addition, color centers can be controllably created and their local environment …
-
Techniques for noise suppression and robust control in spin-based quantum information processors
… with a discussion of applications to actuator-based quantum information processors. In a multi-mode design for such a processor, which allows efficient removal of entropy, a new protocol is suggested that permits robust parallel information transfer between nodes. The results detailed in this …
-
Sensing and timekeeping using a light-trapping diamond waveguide
… promising sensing platforms. In particular, the spin properties of nitrogen vacancy (NV) color centers in diamond make them outstanding sensors of magnetic fields, electric fields, and temperature under ambient conditions. This thesis focuses on spin-based sensing using multimode diamond …
-
Synthesis and Characterization of Magnetic II-VI Nanoparticles
… for their potential application in the field of spintronics as spin-injectors for spin-based transistors and spin-based storage elements for nonvolatile memories. They also have a number of biomedical engineering applications including contrast enhancing agents for magnetic resonance imaging …
-
Energy efficient hybrid computing systems using spin devices
<p>Emerging spin-devices like magnetic tunnel junctions (MTJ's), spin-valves and domain wall magnets (DWM) have opened new avenues for spin-based logic design. This work explored potential computing applications which can exploit such devices for higher energy-efficiency and performance. The …
-
"Transistor-Like" Spin Nano-Switches: Physics and Applications
… the last two decades has effectively integrated spintronics and nanomagnetics into a single field, creating a new class of spin-based devices that are now being widely used in magnetic memory devices. However, it is not clear if these advances could also be used to build logic devices.
-
Time-Resolved Studies of Magnetic and Non-Magnetic Narrow-Gap Semiconductors
In recent years, spin relaxation, injection, and manipulation in semiconductors have attracted considerable interest because of several potential applications in "spintronic" devices and the necessity to understand and control spin-based phenomena. In light of the growing interest in spin-related …
-
Coherent control of polarized neutron interferometry
… interferometry (NI). We describe a split path spin-based interferometer geometry that uses the Bragg interferometer to separate two paths where spin states are independently manipulated. The final measurement is made on the spin degree of freedom, so we observe spin-based contrast without a …
-
Growth-Induced Cation Order and Magnetic Anisotropy Engineering in Iron Garnet Thin Films
… reduce size, and improve energy efficiency. Spin-based memory devices, which encode data in a material’s magnetic state, offer a promising solution. Magnetic memory technologies are widespread today, powering devices such as memory disks, tapes, and magnetic random access memory (MRAM). While …
-
Tunable spin-charge conversion in vanadium dioxide
Spin-based electronic devices rely on the interplay of spin and charge degree of freedom of electrons and are emerging as a promising beyond CMOS technology. Fast, scalable, low energy consumption magnetic memories and nonvolatile spin logic devices have been demonstrated utilizing …
-
Magnetic domain wall devices : from physics to system level application
Spintronics promises intriguing device paradigms where electron spin is used as the information token instead of its charge counterpart. Spin transfer torque-magnetic random access memory (STT-MRAM) is considered one of the most mature nonvolatile memory technologies for next generation computers. …
-
Electrochemical modulation of fluorescence of nitrogen vacancy centers in nanodiamonds for voltage sensing applications
… magnetic resonance of the negatively charged NV- spin state. As such, fluctuations in the NV charge state present a challenge for NV- spin-based sensing. This thesis discusses the electrochemical modulation of NV charge state and fluorescence as the basis for an alternative sensing scheme. An …
-
Magnon Transport in Insulating Magnetic Thin Films
Magnon-mediated spin flow in magnetically ordered insulators enables long-distance spin-based information transport with low dissipation. MAFO (MgAl0.5Fe1.5O4) is a spinel ferrite that has been recently stabilized in epitaxial thin-film form and has a substantial in-plane four-fold magnetic …
-
Complex of heavy magnetic ions and luminescent silicon nanoparticles
… imaging, spatially programmable deposition, spin-based memories and transistors, infrared communications, ltration, as well as interplanetary and interstellar observation and modeling.
-
Spin wave characterization in a 1D YIG magnonic crystal
… thesis, I will analyze and discuss features of spin wave propagation characteristics measured in a one-dimensional (1D) yttrium iron garnet (YIG) magnonic crystal using time-resolved Brillouin light scattering (TR-BLS) measurements. Magnonic crystals are a promising candidate to aid in …
-
Europium oxide as a perfect electron spin filter
Essential to the emergence of spin-based electronics is a source of highly polarized electron spins. Conventional ferromagnets have at best a spin polarization P-50%. Europium monoxide is a novel material capable of generating a highly spin-polarized current when used as a tunnel barrier. EuO is …
-
Coherent control of dipolar coupled spins in large Hilbert spaces
Controlling the dynamics of a dipolar-coupled spin system is critical to the development of solid-state spin-based quantum information processors. Such control remains challenging, as every spin is coupled to a large number of surrounding spins. In this thesis, we primarily focus on developing …
Page 1 of 3