Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Peter Czoschke"'
Publikováno v:
2021 IEEE 32nd Magnetic Recording Conference (TMRC).
Non-repeatable positioning of transitions in the media (jitter) is one of the primary limiting factors in achieving higher linear density in magnetic recording. In a typical magnetic recording system, the primary sources of jitter are due to the fini
Publikováno v:
IEEE Transactions on Magnetics. 55:1-5
The areal density achievable with heat-assisted magnetic recording (HAMR) is directly related to the temperature gradient produced in the recording media by the near-field transducer. The thermal gradient in the down track direction affects the linea
Publikováno v:
IEEE Transactions on Magnetics. 55:1-5
A method for measuring the magnetic field strength of the magnetic writer used in heat-assisted magnetic recording (HAMR) is presented. The measurement, termed write current assist percentage (WCAP), compares the laser current needed to erase a narro
Autor:
Victor Boris Sapozhnikov, Peter Czoschke, Chris Rea, Michael Allen Seigler, Jan-Ulich Thiele, Pavol Krivosik, Steven Granz, Ganping Ju, Yingguo Peng, Jianxin Zhu
Publikováno v:
IEEE Transactions on Magnetics. 55:1-8
Differences between heat-assisted magnetic recording (HAMR) and conventional perpendicular magnetic recording at narrow track widths are compared. We can see that HAMR appears to have similar adjacent track interference, but increased readback signal
Publikováno v:
IEEE Transactions on Magnetics. 55:1-11
The understanding of measured jitter is improved in three ways. First, it is shown that the measured jitter is not only governed by written-in jitter and the reader resolution along the cross-track direction but by remanence noise in the vicinity of
Autor:
Chris Rea, Edward Charles Gage, Jan-Ulrich Thiele, Steven Granz, Hua Zhou, Michael Allen Seigler, Pradeep Subedi, Jason Charles Jury, Alexander Q. Wu, Yingguo Peng, Ganping Ju, Stephanie Hernandez, Peter Czoschke, Michael A. Cordle, Tim Rausch, Douglas A. Saunders, Pu-Ling Lu
Publikováno v:
IEEE Transactions on Magnetics. 53:1-7
Differences in the areal density capability limits for heat-assisted magnetic recording (HAMR) and conventional perpendicular magnetic recording (PMR) are explored using spinstand measurements and micromagnetic modeling. The written track curvature a
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
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
Publikováno v:
Applied Physics Letters. 84:4995-4997
We have performed in situ reflectivity measurements using synchrotron radiation of Ag films deposited on Ge(111) over the thickness range of 3–12 atomic layers. The films deposited at a substrate temperature of 110 K are not well ordered, but becom
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