Bit Patterned Media at 1 Tdot/in2 and Beyond

Autor: Dan S. Kercher, Jeffrey S. Lille, Daniel Bedau, Kanaiyalal C. Patel, Dieter Weller, Manfred Ernst Schabes, E. Dobisz, Lei Wan, He Gao, Ricardo Ruiz, Michael Grobis, Tsai-Wei Wu, Olav Hellwig, Thomas R. Albrecht, Ernesto E. Marinero

Publikováno v: IEEE Transactions on Magnetics. 49:773-778

Bit patterned media (BPM) provide an alternative to conventional granular thin film recording media, circumventing the challenges of managing grain size and its associated noise and thermal stability issues in granular media. A viable fabrication str

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e1878e6641f67b5a5815a7270117b39
https://doi.org/10.1109/tmag.2012.2227303

Influence of ion irradiation on switching field and switching field distribution in arrays of Co/Pd-based bit pattern media

Autor: B. D. Terris, E. Dobisz, Thomas Hauet, Dafiné Ravelosona, C Beigné, S.-H Park, Olav Hellwig

Publikováno v: Applied Physics Letters
Applied Physics Letters, American Institute of Physics, 2011, ⟨10.1063/1.3581896⟩
Applied Physics Letters, 2011, ⟨10.1063/1.3581896⟩

International audience; We have used ion irradiation to tune switching field and switching field distribution ͑SFD͒ in polycrystalline Co/Pd multilayer-based bit pattern media. Light He + ion irradiation strongly decreases perpendicular magnetic an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c26f04c9d39153c0313c53445e2c4a9
https://hal.archives-ouvertes.fr/hal-01345352/document

Lattice position of Si in GaAs determined by x‐ray standing wave measurements

Autor: P. L. Cowan, F. Moore, Stephen H. Southworth, A. Shih, E. Dobisz, B. Karlin, Harry B. Dietrich, C. Hor, L. Fotiadis

Publikováno v: Journal of Applied Physics. 73:8161-8168

The x‐ray standing wave (XSW) technique was applied to determine the lattice location of Si impurity atoms in GaAs(100) crystals. The synchrotron radiation of X24A at the national synchrotron light source was utilized to set up backreflection XSW,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c7e08288e9023342407e0cc77dd3e2a9
https://doi.org/10.1063/1.353430

Bit patterned media based on block copolymer directed assembly with narrow magnetic switching field distribution

Autor: Dan S. Kercher, Ricardo Ruiz, Thomas Hauet, Joan K. Bosworth, J. D. Risner-Jamtgaard, E. Dobisz, D. Yaney, Olav Hellwig, Gabriel Zeltzer

Publikováno v: Applied Physics Letters. 96:052511

Electron-beam (E-beam) directed assembly, which combines the long-range phase and placement registration of e-beam lithography with the sharp dot size and spacing uniformity of block copolymer self assembly, is considered highly promising for fabrica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a88db21045816f8dbf7a21a008edfa3
https://doi.org/10.1063/1.3293301

Role of reversal incoherency in reducing switching field and switching field distribution of exchange coupled composite bit patterned media

Autor: B. D. Terris, B. Lengsfield, Olav Hellwig, Thomas Hauet, E. Dobisz, S. H. Florez, Jihoon Park

Publikováno v: Applied Physics Letters. 95:262504

Model exchange coupled composite media, namely [Co/Pd]5/Pd(t)/[Co/Ni]3/Co multilayers, deposited onto prepatterned substrates have been investigated for potential use in bit patterned recording. Optimizing the thickness of the Pd interlayer allows de

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca173c807de49ef99318b122f6874574
https://doi.org/10.1063/1.3276911