Magnetoresistive sensors PP Freitas, R Ferreira, S Cardoso, F Cardoso Journal of Physics: condensed matter 19 (16), 165221, 2007 | 597 | 2007 |
Advanced magnetic nanostructures D Sellmyer, R Skomski Springer US, 2006 | 403 | 2006 |
Spintronic sensors PP Freitas, R Ferreira, S Cardoso Proceedings of the IEEE 104 (10), 1894-1918, 2016 | 158 | 2016 |
Ion beam deposition and oxidation of spin-dependent tunnel junctions S Cardoso, V Gehanno, R Ferreira, PP Freitas IEEE transactions on magnetics 35 (5), 2952-2954, 1999 | 108 | 1999 |
Low frequency noise in arrays of magnetic tunnel junctions connected in series and parallel R Guerrero, M Pannetier-Lecoeur, C Fermon, S Cardoso, R Ferreira, ... Journal of Applied Physics 105 (11), 2009 | 98 | 2009 |
Magnetic tunnel junction sensors with pTesla sensitivity S Cardoso, DC Leitao, L Gameiro, F Cardoso, R Ferreira, E Paz, ... Microsystem technologies 20, 793-802, 2014 | 84 | 2014 |
Improving magnetic field detection limits of spin valve sensors using magnetic flux guide concentrators A Guedes, JM Almeida, S Cardoso, R Ferreira, PP Freitas IEEE transactions on magnetics 43 (6), 2376-2378, 2007 | 82 | 2007 |
1∕ f noise in linearized low resistance MgO magnetic tunnel junctions JM Almeida, R Ferreira, PP Freitas, J Langer, B Ocker, W Maass Journal of applied physics 99 (8), 2006 | 75 | 2006 |
Spin dependent tunnel junctions for memory and read-head applications PP Freitas, S Cardoso, R Sousa, W Ku, R Ferreira, V Chu, JP Conde IEEE transactions on magnetics 36 (5), 2796-2801, 2000 | 67 | 2000 |
Large area and low aspect ratio linear magnetic tunnel junctions with a soft-pinned sensing layer R Ferreira, E Paz, PP Freitas, J Wang, S Xue IEEE transactions on magnetics 48 (11), 3719-3722, 2012 | 66 | 2012 |
Toward a magnetoresistive chip cytometer: Integrated detection of magnetic beads flowing at cm/s velocities in microfluidic channels J Loureiro, R Ferreira, S Cardoso, PP Freitas, J Germano, C Fermon, ... Applied Physics Letters 95 (3), 2009 | 65 | 2009 |
Spin transfer torque driven higher-order propagating spin waves in nano-contact magnetic tunnel junctions A Houshang, R Khymyn, H Fulara, A Gangwar, M Haidar, SR Etesami, ... Nature communications 9 (1), 4374, 2018 | 62 | 2018 |
Spin torque nano-oscillator driven by combined spin injection from tunneling and spin Hall current M Tarequzzaman, T Böhnert, M Decker, JD Costa, J Borme, B Lacoste, ... Communications Physics 2 (1), 20, 2019 | 59 | 2019 |
Tuning of MgO barrier magnetic tunnel junction bias current for picotesla magnetic field detection R Ferreira, P Wisniowski, PP Freitas, J Langer, B Ocker, W Maass Journal of applied physics 99 (8), 2006 | 58 | 2006 |
Ultrafast sweep-tuned spectrum analyzer with temporal resolution based on a spin-torque nano-oscillator A Litvinenko, V Iurchuk, P Sethi, S Louis, V Tyberkevych, J Li, A Jenkins, ... Nano letters 20 (8), 6104-6111, 2020 | 52 | 2020 |
High power and low critical current density spin transfer torque nano-oscillators using MgO barriers with intermediate thickness JD Costa, S Serrano-Guisan, B Lacoste, AS Jenkins, T Böhnert, ... Scientific Reports 7 (1), 7237, 2017 | 52 | 2017 |
Influence of Ta antidiffusion barriers on the thermal stability of tunnel junctions S Cardoso, R Ferreira, PP Freitas, P Wei, JC Soares Applied Physics Letters 76 (25), 3792-3794, 2000 | 50 | 2000 |
MgO-based magnetic tunnel junction sensors array for non-destructive testing applications DW Guo, FA Cardoso, R Ferreira, E Paz, S Cardoso, PP Freitas Journal of Applied Physics 115 (17), 2014 | 48 | 2014 |
Characterization of CoFeB electrodes for tunnel junctions S Cardoso, C Cavaco, R Ferreira, L Pereira, M Rickart, PP Freitas, ... Journal of applied physics 97 (10), 2005 | 46 | 2005 |
Strategies for pTesla field detection using magnetoresistive sensors with a soft pinned sensing layer JP Valadeiro, J Amaral, DC Leitao, R Ferreira, SF Cardoso, PJP Freitas IEEE transactions on magnetics 51 (1), 1-4, 2015 | 45 | 2015 |