Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Radek Lopusnik"'
Autor:
Chris Rea, Peter Czoschke, Hua Zhou, Pradeep Subedi, Edward Charles Gage, Michael Allen Seigler, Stephanie Hernandez, Yingguo Peng, Jan-Ulich Thiele, Alexander Q. Wu, Tim Rausch, Pu-Ling Lu, Kaizhong Gao, Radek Lopusnik, Ganping Ju, Minjie Ma
Publikováno v:
IEEE Transactions on Magnetics. 52:1-4
Differences in the areal-density capability limits for heat-assisted magnetic recording (HAMR) and conventional perpendicular magnetic recording (PMR) are explored using spinstand measurements, drive footprinting, and micromagnetic modeling. The writ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::407bbcd959d350e39e20ad86120ec328
https://doi.org/10.1109/tmag.2016.2527735
https://doi.org/10.1109/tmag.2016.2527735
Publikováno v:
2018 Design of Medical Devices Conference.
Thermal ablation is rapidly becoming a standard of care for the treatment of atrial fibrillation (AF), a cardiac disorder characterized by irregular heart rhythm and estimated to impact more than 33 million people worldwide [1]. AtriCure is a company
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74bd2f5dae35cd6f63a94dac57d828b1
https://doi.org/10.1115/dmd2018-6949
https://doi.org/10.1115/dmd2018-6949
Autor:
Wei Yu, Mark Anthony Gubbins, Peter Czoschke, Paul Steven Keatley, R. J. Hicken, Radek Lopusnik
Publikováno v:
IEEE Transactions on Magnetics. 49:3741-3744
Three partially built hard disk writer structures with active coil windings located at different positions relative to the yoke were studied by time resolved scanning Kerr microscopy. All three Cartesian components of the magnetization were recorded
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b87e37d7549347dbee6baf46d3d5c19b
https://doi.org/10.1109/tmag.2013.2248349
https://doi.org/10.1109/tmag.2013.2248349
Autor:
Marcus B. Mooney, Chun-Yang Tseng, Jason Bryce Gadbois, Radek Lopusnik, Yu Long Wong Alex, H. Edelman
Publikováno v:
IEEE Transactions on Magnetics. 48:3536-3538
Curvature of transitions recorded onto a magnetic disc has become more pronounced as tracks narrow. Curvature creates interference between adjacent transitions recorded at high bit density, and broadens the read back signal pulse. Curved transitions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::627a85a52e7de454a6090dc4540fdf1a
https://doi.org/10.1109/tmag.2012.2199092
https://doi.org/10.1109/tmag.2012.2199092
Autor:
Mark Anthony Gubbins, R. J. Hicken, Timothy M Spicer, Radek Lopusnik, R. A. J. Valkass, Erick O. Burgos Parra, M. A. Bashir, Peter Czoschke
Publikováno v:
Journal of Applied Physics. 119:233903
To meet growing data storage needs, the density of data stored on hard disk drives must increase. In pursuit of this aim, the magnetodynamics of the hard disk write head must be characterized and understood, particularly the process of “flux beamin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dda11f0c4221279e7adc747088d547ed
https://doi.org/10.1063/1.4954018
https://doi.org/10.1063/1.4954018
Publikováno v:
Applied Physics Letters. 83:93-95
We have measured the Lande g factor, the effective magnetization Meff, the uniaxial anisotropy Hk, and the Gilbert damping parameter α, as a function of Permalloy film thickness from 2.5 to 50 nm. We used a pulsed inductive microwave magnetometer ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a985f2d862ced1146c320ed2ddd2279
https://doi.org/10.1063/1.1588734
https://doi.org/10.1063/1.1588734
Publikováno v:
Journal of Applied Physics. 93:7068-7070
A cryogenic pulsed inductive microwave magnetometer is used to characterize the switching dynamics in thin-film magnetic materials at low temperatures and microwave frequencies. The system is contained inside a 20-cm-diam ultrahigh vacuum chamber and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ff8f727dbee76ac1efa4ff7df303068
https://doi.org/10.1063/1.1543125
https://doi.org/10.1063/1.1543125
Publikováno v:
Applied Physics Letters. 82:2112-2114
We have measured the step response in thin film Permalloy as a function of both a hard-axis pulsed field amplitude and an easy-axis longitudinal magnetic bias field using a pulsed inductive microwave magnetometer. The bias field ranged from 0 to 8000
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c99b5698a7a48862070670bdb20cb8d1
https://doi.org/10.1063/1.1564866
https://doi.org/10.1063/1.1564866
Autor:
T. H. J. Loughran, Peter Czoschke, M. A. Bashir, R. A. J. Valkass, G. van der Laan, L. R. Shelford, Paul Steven Keatley, Stuart A. Cavill, R. J. Hicken, Radek Lopusnik, W. Yu, Mark Anthony Gubbins, Sarnjeet S. Dhesi
Publikováno v:
Applied Physics Letters. 106:232404
Four different designs of partially built hard disk write heads with a yoke comprising four repeats of NiFe (1 nm)/CoFe (50 nm) were studied by both x-ray photoemission electron microscopy (XPEEM) and time-resolved scanning Kerr microscopy (TRSKM). T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::807643078f72424b5a2d74421356ff39
https://doi.org/10.1063/1.4922374
https://doi.org/10.1063/1.4922374
Autor:
Paul Steven Keatley, P. Gangmei, R. J. Hicken, Peter Czoschke, Radek Lopusnik, W. Yu, Mark Anthony Gubbins
Publikováno v:
Applied Physics Letters. 105:089901
This is the final version of the article. Available from the American Institute of Physics via the DOI in this record.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21f03d72b7f46f20385a4b3d6b3eee7f
https://doi.org/10.1063/1.4894380
https://doi.org/10.1063/1.4894380