Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Jeffrey R. Childress"'
Autor:
Andreas Mann, Jakob Walowski, Markus Münzenberg, Stefan Maat, Matthew J. Carey, Jeffrey R. Childress, Claudia Mewes, Daniel Ebke, Volker Drewello, Günter Reiss, Andy Thomas
Publikováno v:
Physical Review X, Vol 2, Iss 4, p 041008 (2012)
Interest in femtosecond demagnetization dynamics was sparked by Bigot’s experiment in 1996, which unveiled the elementary mechanisms that relate the electrons’ temperature to their spin order. Simultaneously, the application of fast demagnetizati
Externí odkaz:
https://doaj.org/article/34c08bbd97f44a34b1b11319daec90f2
Autor:
R. J. Hicken, Jordan A. Katine, Feodor Y. Ogrin, Alastair P. Hibbins, Paul Steven Keatley, D. Osuna Ruiz, Jeffrey R. Childress
The curling spin wave modes of a ferromagnetic vortex confined to a microscale disc have been directly imaged in response to a microwave field excitation using time-resolved scanning Kerr microscopy. Micromagnetic simulations have been used to explor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b687fd77101a05d1a26e3c03c48146e6
Autor:
Neil Smith, Paul van der Heijden, John C. Read, Goran Mihajlovic, Ching H. Tsang, Jeffrey R. Childress
Publikováno v:
IEEE Magnetics Letters. 8:1-4
We present experimental studies of simple-pinned current-perpendicular-to-the-plane giant magnetoresistance (CPP-GMR) sensors demonstrating large gains in signal-to-noise ratio from improvements in reference layer exchange pinning strength J k and ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35676ac76fa78b3bc55188d27211172c
https://doi.org/10.1109/lmag.2016.2620119
https://doi.org/10.1109/lmag.2016.2620119
Publikováno v:
Proceedings of the IEEE. 104:1787-1795
The development of spintronics has had a dramatic impact on the evolution of the magnetic hard disk drive and, in turn, on the ubiquitous nature of digital data in modern society. The advent of the magnetoresistive read head technology transitioning
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ec7183cce3c95e1e7c0b49d175dd152
https://doi.org/10.1109/jproc.2016.2567778
https://doi.org/10.1109/jproc.2016.2567778
Autor:
William L. Barnes, T. H. J. Loughran, Paul Steven Keatley, Jordan A. Katine, Jeffrey R. Childress, Euan Hendry, R. J. Hicken
Publikováno v:
The Review of scientific instruments. 88(12)
Time-resolved scanning Kerr microscopy (TRSKM) is a powerful technique for the investigation of picosecond magnetization dynamics at sub-micron length scales by means of the magneto-optical Kerr effect (MOKE). The spatial resolution of conventional (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::047f6f79073c52da82ed73075427ceb3
https://pubmed.ncbi.nlm.nih.gov/29289235
https://pubmed.ncbi.nlm.nih.gov/29289235
Autor:
Goran Mihajlovic, Jeffrey R. Childress, John C. Read, Hsin-Wei Tseng, Tomoya Nakatani, Young-Suk Choi, Neil Smith
Publikováno v:
IEEE Magnetics Letters. 6:1-4
We report a $\sim 4\; \text{dB}$ enhancement in signal-to-noise ratio of current-perpendicular-to-the-plane giant magnetoresistance sensors with Heusler alloy magnetic layers due to insertion of an InZnO electrically conductive oxide into an Ag-based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff1116070c2efc034bb654c186f710d1
https://doi.org/10.1109/lmag.2015.2496552
https://doi.org/10.1109/lmag.2015.2496552
Autor:
C. J. Durrant, L. B. Duffy, L. R. Shelford, Jordan A. Katine, Adriana I. Figueroa, Stuart A. Cavill, R. J. Hicken, Elke Arenholz, Jeffrey R. Childress, Alexander A. Baker, Christoph Klewe, R. A. J. Valkass, G. van der Laan, P. Shafer
Publikováno v:
Physical Review B. 96
Spin pumping has been studied within Ta / Ag / ${\text{Ni}}_{81}{\mathrm{Fe}}_{19}$ (0--5 nm) / Ag (6 nm) / ${\mathrm{Co}}_{2}\mathrm{MnGe}$ (5 nm) / Ag / Ta large-area spin-valve structures, and the transverse spin current absorption of ${\mathrm{Ni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b797e50adcb80fce3c60673d40216cd
https://doi.org/10.1103/physrevb.96.144421
https://doi.org/10.1103/physrevb.96.144421
Autor:
Michael R. Page, Vidya P. Bhallamudi, Jeffrey R. Childress, Michael E. McConney, C. S. Wolfe, Brendan McCullian, Joseph G. Schulze, Carola M. Purser, Brandon M. Howe, Tomoya Nakatani, P. C. Hammel
We report quantitative measurements of optically detected ferromagnetic resonance (ODFMR) of ferromagnetic thin films that use nitrogen-vacancy (NV) centers in diamonds to transduce FMR into a fluorescence intensity variation. To uncover the mechanis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4b40e26d5ad465d98380d9e2652fdb6
Autor:
Robert A. Buhrman, Jordan A. Katine, Patrick M. Braganca, Daniel C. Ralph, Jeffrey R. Childress, D. Mauri, Philip M. Rice, E. Delenia, N. C. Emley
Publikováno v:
IEEE Transactions on Nanotechnology. 8:190-195
Using a self-aligned fabrication process together with multiple-step aligned electron beam lithography, we have developed a nanopillar structure where a third contact can be made to any point within a thin-film multilayer stack. This substantially en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a032a9c77e3be31b47a6cb4c996a236
https://doi.org/10.1109/tnano.2008.2005187
https://doi.org/10.1109/tnano.2008.2005187
Autor:
Jeffrey R. Childress, S. Maat, K. Carey, Neil Leslie Robertson, Ching Tsang, Jordan A. Katine, T.D. Boone, Matthew J. Carey, J. Moore, M. Alex, R.E. Fontana, D. Druist, Neil Smith
Publikováno v:
IEEE Transactions on Magnetics. 44:90-94
Read heads using current-perpendicular-to-plane (CPP) giant magnetoresistance sensors have been fabricated and tested under high-density recording conditions. A magnetoresistance of 5.5% and shield-to-shield spacing of 45 nm have been achieved by usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::555f683422306be51886b1cf54187b36
https://doi.org/10.1109/tmag.2007.911019
https://doi.org/10.1109/tmag.2007.911019