Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Sara A. Majetich"'
Autor:
Samuel D. Oberdick, Ahmed Abdelgawad, Carlos Moya, Samaneh Mesbahi-Vasey, Demie Kepaptsoglou, Vlado K. Lazarov, Richard F. L. Evans, Daniel Meilak, Elizabeth Skoropata, Johan van Lierop, Ian Hunt-Isaak, Hillary Pan, Yumi Ijiri, Kathryn L. Krycka, Julie A. Borchers, Sara A. Majetich
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-12 (2018)
Abstract Magnetic nanoparticles (MNPs) have become increasingly important in biomedical applications like magnetic imaging and hyperthermia based cancer treatment. Understanding their magnetic spin configurations is important for optimizing these app
Externí odkaz:
https://doaj.org/article/676084dde33b4ce08c1c82e7059af7c3
Publikováno v:
AIP Advances, Vol 8, Iss 5, Pp 056321-056321-5 (2018)
Magnetic nanoparticles with room temperature remanent magnetic vortices stabilized by their curvature are very intriguing due to their potential use in biomedicine. In the present study, we investigate room temperature magnetic chirality in 100 nm di
Externí odkaz:
https://doaj.org/article/db23ecbf50c948688111be0ff2779ffd
Publikováno v:
AIP Advances, Vol 8, Iss 5, Pp 055903-055903-5 (2018)
Superparamagnetic perpendicular magnetic tunnel junctions are fabricated and analyzed for use in random number generators. Time-resolved resistance measurements are used as streams of bits in statistical tests for randomness. Voltage control of the t
Externí odkaz:
https://doaj.org/article/332d3797ddd14748a7f2314be5e10cc3
Publikováno v:
AIP Advances, Vol 6, Iss 5, Pp 056114-056114-5 (2016)
Large area arrays of FePt nanodots are fabricated on patterned substrates made of SiOx, SiNx and TiNx. The templates have a depth of ∼10 nm and a pitch of ∼20 nm with 18 nm wide holes. FePt is sputtered on the nanohole arrays, then back-etched, l
Externí odkaz:
https://doaj.org/article/32aa6886268c4af4bf0353ea6edf2e2d
Autor:
Delin Zhang, Mukund Bapna, Wei Jiang, Duarte Sousa, Yu-Ching Liao, Zhengyang Zhao, Yang Lv, Protyush Sahu, Deyuan Lyu, Azad Naeemi, Tony Low, Sara A. Majetich, Jian-Ping Wang
Publikováno v:
Nano Letters. 22:622-629
Perpendicular magnetic tunnel junctions (p-MTJs) switched utilizing bipolar electric fields have extensive applications in energy-efficient memory and logic devices. Voltage-controlled magnetic anisotropy linearly lowers the energy barrier of the fer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::377bc931df7ab1195b93e875d10a7f2e
https://doi.org/10.1021/acs.nanolett.1c03395
https://doi.org/10.1021/acs.nanolett.1c03395
Publikováno v:
Applied Physics Letters. 120
The angle dependence of field-induced switching was investigated in magnetic tunnel junctions with in-plane magnetization and a pinned synthetic antiferromagnet reference layer. The 60 × 90 nm2 elliptical nanopillars had sharp single switches when t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::796063ae9ced04217030466294e39119
https://doi.org/10.1063/5.0093044
https://doi.org/10.1063/5.0093044
Autor:
Kathryn L Krycka, James J Rhyne, Samuel D Oberdick, Ahmed M Abdelgawad, Julie A Borchers, Yumi Ijiri, Sara A Majetich, Jeffrey W Lynn
Publikováno v:
New Journal of Physics, Vol 20, Iss 12, p 123020 (2018)
Inelastic neutron scattering is utilized to directly measure inter-nanoparticle spin waves, or magnons, which arise from the magnetic coupling between 8.4 nm ferrite nanoparticles that are self-assembled into a close-packed lattice, yet are physicall
Externí odkaz:
https://doaj.org/article/ff22d0a0ae8a457e9796e613a24c4258
Effect of Mo capping in sub-100 nm CoFeB-MgO tunnel junctions with perpendicular magnetic anisotropy
Autor:
Hamid Almasi, Sara A. Majetich, Congli Sun, Weigang Wang, Paul M. Voyles, Mukund Bapna, Samuel D. Oberdick, Brad Parks
Publikováno v:
Journal of Magnetism and Magnetic Materials. 483:34-41
Co20Fe60B20/MgO/Co20Fe60B20 perpendicular magnetic tunnel junctions with Mo seed and capping layers were patterned into sub-100 nm diameter devices. The resulting devices were imaged in plan view by scanning electron microscopy and in cross-section b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69c934ec582590cb4ff9be7c82942517
https://doi.org/10.1016/j.jmmm.2019.03.005
https://doi.org/10.1016/j.jmmm.2019.03.005
Autor:
Sara A. Majetich
Publikováno v:
Handbook of Magnetism and Magnetic Materials ISBN: 9783030631017
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55dc4abf292f9eaa538cf03865584911
https://doi.org/10.1007/978-3-030-63101-7_20-1
https://doi.org/10.1007/978-3-030-63101-7_20-1
Publikováno v:
Journal of Physics D: Applied Physics. 55:265002
The effects of magnetostatic coupling on switching dynamics are investigated for assemblies of patterned disc-shaped magnetic elements using mumax3 micromagnetic simulations. The arrangements of coupled dots were designed using information about the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ca02c42453fb640d2ef3a733e9f8cea
https://doi.org/10.1088/1361-6463/ac62a1
https://doi.org/10.1088/1361-6463/ac62a1