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.
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Showing 1 to 20 of 226 for “"antiferromagnetic"”.
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Electric and thermoelectric properties of antiferromagnetic metals
Metallic antiferromagnetic materials are promising candidates for next-generation spintronic technologies because of their robustness against external magnetic field, absence of stray fields and THz spin dynamics. However, reading the order parameter of antiferromagnets (AFs) has always been …
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Magnetic and thermal properties of metallic antiferromagnetic materials
Metallic antiferromagnetic materials are of great potential in spintronics due to their insensitivity to external fields and faster dynamics compared to typical ferromagnetic materials. Although they have these advantages, studies of their order parameter is difficult to perform because of the lack …
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Magnetic properties of Heisenberg antiferromagnetic EuTe/PbTe superlattices
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1996.
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Quantum mechanical studies of Heisenberg antiferromagnetic spin chains
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1999.
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Study of growing incongruent antiferromagnetic single crystals and characterization
… partial switching of the Néel vector of antiferromagnetic CuMnAs and Mn2Au with current-induced spin-orbit torques. More intermetallic antiferromagnets share the structure types of CuMnAs and Mn2Au, or at least contain degenerated in-plane magnetic configurations, are proposed as …
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Antiferromagnetic nanodiscs with perpendicular magnetic anisotropy for biological applications
… Perpendicularly magnetised (PM) synthetic antiferromagnetic (SAF) particles exhibit a range of desirable properties that make them strong candidates for applications in fluid. These include a zero remanence state, sharp and tunable switching, and a high and variable saturation …
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Detection of antiferromagnetic domain reversal in epitaxial insulating oxides
Antiferromagnetic materials have historically played a passive role as biasing layers in spintronics applications due to the challenges in manipulating and detecting the magnetic order. However, substituting ferromagnets by antiferromagnets as active switching elements in data storage devices …
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Impurities in Antiferromagnetic Transition-metal Oxides – Symmetry and Optical Transitions
The study of antiferromagnetic transition-metal oxides is an extremely active area in the physical sciences, where condensed matter physics, inorganic chemistry, and materials science blend together. The sheer number of potential commercial applications is staggering, but much of the fundamental …
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Atomistic Simulations of Antiferromagnetic Solitons and their High-Speed Dynamics
In antiferromagnetic materials, localized self-sustaining states called solitons namely Domain Walls and Skyrmions, can be efficiently driven by currents and achieve velocities of several kilometers per second. These solitons are massive particles and therefore cannot travel faster than a limiting …
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Sustainable Heusler and Antiferromagnetic Thin Films for High Density Data Storage
… thin films of Fe/Mn/Al based Heusler alloys and antiferromagnetic Mn$_3$$\it X$ ($\it X$ = Sn, Ga) as new materials for spintronic devices. Heusler alloys offer a very promising platform to tailor physical properties of materials through element compositional changes and substitution. In the …
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Cerium and rhodium substitution in the antiferromagnetic superconductor cerium rhodium indium(5)
… in small concentrations is shown to increase the antiferromagnetic transition temperature TN. La doping or higher concentration of Ir is shown to lower TN. This shows the RKKY interaction, which leads to long range order in CeRhIn5, is of the same magnitude as the Kondo effect. The high …
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Optically induced ferro- and antiferromagnetic dynamics in the rare-earth metal dysprosium
… thesis the so far rarely studied response of antiferromagnetic order to ultra-short optical laser pulses in a metal is investigated. The experiments were performed at the FemtoSpex slicing facility at the storage ring BESSY II, an unique source for ultra-short elliptically polarized x-ray …
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Thermal, Electrical, and Spin Transport: Encompassing Low-Damping Ferromagnets and Antiferromagnetic/Ferromagnetic Heterostructures
<p>Continuing technological advancements bring forth escalating challenges in global energy consumption and subsequent power dissipation, posing significant economic and environmental concerns. In response to these difficulties, the fields of thermoelectrics, spintronics, and spincaloritronics …
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Quantitative study on current-induced effects in an antiferromagnetic insulator/Pt bilayer film
… of the recent prototypical spinorbit torque antiferromagnetic memory devices requires more quantitative and systematic study. In this thesis, we study the current-induced switching in a canted antiferromagnetic insulator [alpha]-Fe2O3. The (0001) oriented films were epitaxially grown on …
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Analysis of the heat capacity results of antiferromagnetic compounds and compounds which exhibit rotation.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 1965
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Multipoles, Magnetic charges and chiral properties in antiferromagnetic materials inferred from resonant X-Ray diffraction
… experiments. In this PhD work, three different antiferromagnetic materials with magnetic ions located in threefold symmetry (3) positions have been investigated in detail by means of REXS. Neptunium Dioxide (NpO2), where an enigmatic low-temperature ordering state shows interesting physical …
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