Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Edward S. Murdock"'
Autor:
Nurul Amin, James M. Daughton, A.V. Pohm, Brenda A. Everitt, Taras G. Pokhil, L. Zhong, Edward S. Murdock, T. van Nguyen, D. Olson, P. Kolbo
Publikováno v:
IEEE Transactions on Magnetics. 41:125-131
We have designed and fabricated a vertical giant magnetoresistive (VGMR) head for high-density magnetic recording. In this style of recording head, read current flows through the sensor length, which is oriented perpendicular to the air-bearing surfa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46c4bf381a56d81426280b1cd071abdb
https://doi.org/10.1109/tmag.2004.840368
https://doi.org/10.1109/tmag.2004.840368
Autor:
Edward S. Murdock, Chunhong Hou, P. Kolbo, A. Goyal, Jian Chen, Insik Jin, Lei Wang, Haiwen Xi, Sining Mao, Robert M. White, Martin L. Plumer, Zheng Gao
Publikováno v:
IEEE Transactions on Magnetics. 38:26-31
We demonstrate the feasibility of a spin-valve read head using an adjacent antiferromagnetic (AFM) layer to provide a stabilization Held, eliminating the hard bias permanent magnet layer. The head stack consists of seed/AFM/CoFe/Ru/CoFe/Cu/CoFe (and/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5255943d433d5fc270fcd92e4c90daa7
https://doi.org/10.1109/tmag.2002.988906
https://doi.org/10.1109/tmag.2002.988906
Autor:
Eric S. Linville, Dian Song, Lei Wang, P. Kolbo, Janusz J. Nowak, Patrick J. Ryan, Douglas A. Saunders, Sining Mao, Edward S. Murdock
Publikováno v:
IEEE Transactions on Magnetics. 38:78-83
Spin tunneling recording heads above 20 Gb/in/sup 2/ have been fabricated using a bottom tunneling junction stack. The spin tunneling stack is made of Ta/PtMn/CoFe/Ru/CoFe/AlO/NiFe/Ta and stabilized by a permanent magnet abutted junction. The effecti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::96e0794025be1b22cbd62c1978abb6ea
https://doi.org/10.1109/tmag.2002.988915
https://doi.org/10.1109/tmag.2002.988915
Publikováno v:
Journal of Applied Physics. 90:2427-2432
Electromigration-induced failures have been investigated in single layered NiFe Permalloy thin films, which are used in giant magnetoresistance (GMR) read heads in high-density magnetic recording disk drives. The time-to-failure and median-time-to-fa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f9f88e179ea03e1836f9a00072bc072
https://doi.org/10.1063/1.1389337
https://doi.org/10.1063/1.1389337
Publikováno v:
IEEE Transactions on Magnetics. 39:2396-2398
Vertical giant magnetoresistive (GMR) recording head designs have been proposed to achieve the optimum bias point and magnetic stability. Using a micromagnetic model, several design options were simulated and a test feature was built to validate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3dd0b0c001f718f56279eba58c7bd46
https://doi.org/10.1109/tmag.2003.815461
https://doi.org/10.1109/tmag.2003.815461
Publikováno v:
IEEE Transactions on Magnetics. 38:2655-2657
Electromigration-induced failure (EIF) lifetimes of magnetic thin films used in giant magnetoresistive (GMR) spin-valve materials have been studied to predict the fundamental electrical reliability of GMR spin-valve read head. Magnetic thin films exh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2b7c888363ffd57bb590f901df33c7c
https://doi.org/10.1109/tmag.2002.801982
https://doi.org/10.1109/tmag.2002.801982
Publikováno v:
Applied Physics Letters. 79:3657-3659
The physical mechanisms responsible for the dependence of electromigration-induced failure lifetimes on NiFe thin film thickness in giant magnetoresistive spin-valve read heads have been studied to determine the maximum allowable current density. Bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce0868cbb99aec5c1ee01a1b3190878c
https://doi.org/10.1063/1.1421644
https://doi.org/10.1063/1.1421644
Autor:
David Q. Chen, Anthony M. Mack, Patrick J. Ryan, Edward S. Murdock, Zhenyong Zhang, Subramanian Krishnan, Eileen Yan, Giora J. Tamopolsky, Sunita Gangopadhyay, Michael L. Covault, Gary C. Rauch, Eric Champion, Rajiv Yadav Ranjan, Hans Jurgen Richter, Samuel Dacke Harkness, Yong Chang Feng
Publikováno v:
Journal of Applied Physics. 87:5407-5409
We have demonstrated 23.8 Gb/in.2 areal density using a merged read-write grant magnetoresistive head, with an oriented thin film medium tested with broadband electronics and enhanced EPR4 channels. The medium had high signal to noise ratio metrics t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7045149ded7147e97bbfcfe555dd8db
https://doi.org/10.1063/1.373358
https://doi.org/10.1063/1.373358
Autor:
Sining Mao, Brenda A. Everitt, Jack H. Judy, Edward S. Murdock, Zhenghong Qian, John M. Sivertsen
Publikováno v:
Journal of Applied Physics. 85:6106-6108
Exchange coupling of radio frequency sputtered NiMn/NiFe (NiMn on top) and NiFe/NiMn (NiMn at bottom) bilayers have been investigated. It was found that the exchange coupling field, Hex, is not only directly related with the annealing temperature and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0849b93cbe08dee7a4ebea3c6a3e54f
https://doi.org/10.1063/1.370276
https://doi.org/10.1063/1.370276
Publikováno v:
Applied Physics Letters. 69:3593-3595
Spin valves of film layer structure, Ta/NiMn/NiFe/Co/Cu/Co/NiFe/Ta/Substrate were fabricated by ion beam sputtering. Optimization of the processes of deposition and posthermal treatment yields highly (111) oriented spin valve films with a giant‐mag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::725170c26cf9f189985e87b6bc9890d4
https://doi.org/10.1063/1.117217
https://doi.org/10.1063/1.117217