Iranmehr, Ensieh ; Ferreira, Ricardo ; Bohnert, Tim ; Freitas, Paulo Developing a Data-Driven Unsupervised Pattern Recognition Approach for Sensor Signal Anomaly Detection Miscellaneous TechRxiv, 2021. Links | BibTeX @misc{Iranmehr2021,
title = {Developing a Data-Driven Unsupervised Pattern Recognition Approach for Sensor Signal Anomaly Detection},
author = {Iranmehr, Ensieh ; Ferreira, Ricardo ; Bohnert, Tim ; Freitas, Paulo},
url = {https://www.techrxiv.org/articles/preprint/Developing_a_Data-Driven_Unsupervised_Pattern_Recognition_Approach_for_Sensor_Signal_Anomaly_Detection/14522406/1},
doi = {10.36227/techrxiv.14522406.v1},
year = {2021},
date = {2021-05-01},
howpublished = {TechRxiv},
keywords = {},
pubstate = {published},
tppubtype = {misc}
}
|
Dionisio, Rogerio; Torres, Pedro; Ramalho, Armando; Ferreira, Ricardo Magnetoresistive Sensors and Piezoresistive Accelerometers for Vibration Measurements: A Comparative Study Journal Article Journal of Sensor and Actuator Networks, 10 (1), pp. 22, 2021. Links | BibTeX @article{Dionisio2021,
title = {Magnetoresistive Sensors and Piezoresistive Accelerometers for Vibration Measurements: A Comparative Study},
author = {Dionisio, Rogerio; Torres, Pedro; Ramalho, Armando; Ferreira, Ricardo},
url = {https://www.mdpi.com/2224-2708/10/1/22},
doi = {10.3390/jsan10010022},
year = {2021},
date = {2021-01-01},
journal = {Journal of Sensor and Actuator Networks},
volume = {10},
number = {1},
pages = {22},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Siming Zuo and Kianoush Nazarpour and Tim Böhnert and Ricardo Ferreira and Hadi Heidari Integrated Pico-Tesla Resolution Magnetoresistive Sensors for Miniaturised Magnetomyography Miscellaneous 2020, (The work of KN is supported by grants EP/N023080/1 and EP/R004242/1 from
EPSRC, UK.). Abstract | Links | BibTeX @misc{enlighten214038,
title = {Integrated Pico-Tesla Resolution Magnetoresistive Sensors for Miniaturised Magnetomyography},
author = {Siming Zuo and Kianoush Nazarpour and Tim Böhnert and Ricardo Ferreira and Hadi Heidari},
url = {http://eprints.gla.ac.uk/214038/},
year = {2020},
date = {2020-04-01},
booktitle = {42nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC'20)},
abstract = {No abstract available.},
note = {The work of KN is supported by grants EP/N023080/1 and EP/R004242/1 from
EPSRC, UK.},
keywords = {},
pubstate = {published},
tppubtype = {misc}
}
|
Tanwear, Asfand; Heidari, Hadi; Paz, Elvira; Böhnert, Tim; Ferreira, Ricardo Eyelid Gesture Control using Wearable Tunnelling Magnetoresistance Sensors Proceeding 2020, (The work of KN is supported by grants EP/N023080/1 and EP/R004242/1 from EPSRC, UK.). Links | BibTeX @proceedings{Tanwear2020c,
title = {Eyelid Gesture Control using Wearable Tunnelling Magnetoresistance Sensors},
author = {Tanwear, Asfand; Heidari, Hadi; Paz, Elvira; Böhnert, Tim; Ferreira, Ricardo},
url = {https://ieeexplore.ieee.org/abstract/document/9294878},
doi = {10.1109/ICECS49266.2020.9294878},
year = {2020},
date = {2020-01-01},
booktitle = {42nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC'20)},
note = {The work of KN is supported by grants EP/N023080/1 and EP/R004242/1 from EPSRC, UK.},
keywords = {},
pubstate = {published},
tppubtype = {proceedings}
}
|
Ferreira, Ricardo Alexandre De Matos Antunes; de Paz, Elvira Pérez Colosia Magnetoresistive sensor Patent 2020. BibTeX @patent{Ferreira2020,
title = {Magnetoresistive sensor},
author = {Ferreira, Ricardo Alexandre De Matos Antunes; de Paz, Elvira Pérez Colosia},
year = {2020},
date = {2020-01-01},
publisher = {Google Patents},
keywords = {},
pubstate = {published},
tppubtype = {patent}
}
|
Elvira Paz and Ricardo Ferreira and Paulo P Freitas Tuning the linear range of magnetic sensors based on MTJs (Conference Presentation) Inproceedings Spintronics XII, pp. 110903N, International Society for Optics and Photonics 2019. Links | BibTeX @inproceedings{paz2019tuning,
title = {Tuning the linear range of magnetic sensors based on MTJs (Conference Presentation)},
author = {Elvira Paz and Ricardo Ferreira and Paulo P Freitas},
url = {https://doi.org/10.1117/12.2529412},
doi = {10.1117/12.2529412},
year = {2019},
date = {2019-01-01},
booktitle = {Spintronics XII},
volume = {11090},
pages = {110903N},
organization = {International Society for Optics and Photonics},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
R Ferreira and E Paz Magnetoresistive sensor Patent US20180180686A1, 2018. Abstract | Links | BibTeX @patent{Ferreira2018,
title = {Magnetoresistive sensor},
author = {R Ferreira and E Paz},
url = {https://patents.google.com/patent/US20180180686A1/en},
year = {2018},
date = {2018-01-01},
urldate = {2018-08-03},
number = {US20180180686A1},
abstract = {A magnetoresistive sensor is provided. The magnetoresistive sensor comprises a magnetic sensing layer, a magnetic reference layer, and a tunnel barrier layer between the magnetic sensing layer and the magnetic reference layer. The magnetoresistive sensor also comprises a sensing exchange layer having a layer of anti-ferromagnetic material. The sensing exchange layer is exchange coupled with the magnetic sensing layer. Also, the magnetoresistive sensor still further comprises a reference exchange layer having a layer of anti-ferromagnetic material. The reference exchange layer is exchange coupled with the magnetic reference layer. Moreover, the magnetoresistive sensor is configured such that in the absence of an external magnetic field, an exchange bias pinning the reference layer lies along a reference direction, an exchange bias pinning the sensing layer lies along a first direction that is orthogonal to the reference direction, and a magnetic anisotropy of the sensing layer is parallel to the first direction.},
keywords = {},
pubstate = {published},
tppubtype = {patent}
}
A magnetoresistive sensor is provided. The magnetoresistive sensor comprises a magnetic sensing layer, a magnetic reference layer, and a tunnel barrier layer between the magnetic sensing layer and the magnetic reference layer. The magnetoresistive sensor also comprises a sensing exchange layer having a layer of anti-ferromagnetic material. The sensing exchange layer is exchange coupled with the magnetic sensing layer. Also, the magnetoresistive sensor still further comprises a reference exchange layer having a layer of anti-ferromagnetic material. The reference exchange layer is exchange coupled with the magnetic reference layer. Moreover, the magnetoresistive sensor is configured such that in the absence of an external magnetic field, an exchange bias pinning the reference layer lies along a reference direction, an exchange bias pinning the sensing layer lies along a first direction that is orthogonal to the reference direction, and a magnetic anisotropy of the sensing layer is parallel to the first direction. |
E Paz and R Ferreira and P P Freitas Linearization of Magnetic Sensors With a Weakly Pinned Free-Layer MTJ Stack Using a Three-Step Annealing Process Journal Article IEEE Transactions on Magnetics, 52 (7), 2016. Links | BibTeX @article{Paz2016,
title = {Linearization of Magnetic Sensors With a Weakly Pinned Free-Layer MTJ Stack Using a Three-Step Annealing Process},
author = {E Paz and R Ferreira and P P Freitas},
url = {https://ieeexplore.ieee.org/document/7399403/},
doi = {10.1109/TMAG.2016.2525772},
year = {2016},
date = {2016-01-01},
journal = {IEEE Transactions on Magnetics},
volume = {52},
number = {7},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
P P Freitas and R Ferreira and S Cardoso Spintronic Sensors Journal Article Proceedings of the IEEE, 104 (10), pp. 1894-1918, 2016. Links | BibTeX @article{Freitas2016,
title = {Spintronic Sensors},
author = {P P Freitas and R Ferreira and S Cardoso},
url = {https://ieeexplore.ieee.org/abstract/document/7564473/},
doi = {10.1109/JPROC.2016.2578303},
year = {2016},
date = {2016-01-01},
journal = {Proceedings of the IEEE},
volume = {104},
number = {10},
pages = {1894-1918},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
M Costa and J Gaspar and R Ferreira and E Paz and H Fonseca and M Martins and S Cardoso and P P Freitas Integration of magnetoresistive sensors with atomic force microscopy cantilevers for scanning magnetoresistance microscopy applications Journal Article IEEE Transactions on Magnetics, 51 , 2015. BibTeX @article{M.Costa2015,
title = {Integration of magnetoresistive sensors with atomic force microscopy cantilevers for scanning magnetoresistance microscopy applications},
author = {M Costa and J Gaspar and R Ferreira and E Paz and H Fonseca and M Martins and S Cardoso and P P Freitas},
year = {2015},
date = {2015-01-01},
journal = {IEEE Transactions on Magnetics},
volume = {51},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
S Cardoso and D C Leitao and L Gameiro and F Cardoso and R Ferreira and E Paz and P P Freitas Magnetic tunnel junction sensors with pTesla sensitivity Journal Article Microsyst. Technol., 20 , pp. 793-802, 2014. BibTeX @article{Cardoso2014b,
title = {Magnetic tunnel junction sensors with pTesla sensitivity},
author = {S Cardoso and D C Leitao and L Gameiro and F Cardoso and R Ferreira and E Paz and P P Freitas},
year = {2014},
date = {2014-04-02},
journal = {Microsyst. Technol.},
volume = {20},
pages = {793-802},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
D C Leitao and A Silva and R Ferreira and E Paz and F L Deepack and S Cardoso and P P Freitas Linear nanometric tunnel junction sensors with exchange pinned sensing layer Journal Article J. App. Phys., 115 (17), pp. 17E526, 2014. Links | BibTeX @article{Leitao2014b,
title = {Linear nanometric tunnel junction sensors with exchange pinned sensing layer},
author = {D C Leitao and A Silva and R Ferreira and E Paz and F L Deepack and S Cardoso and P P Freitas},
doi = {doi/10.1063/1.4869163},
year = {2014},
date = {2014-01-03},
journal = {J. App. Phys.},
volume = {115},
number = {17},
pages = {17E526},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
E Paz and S Serrano-Guisan and R Ferreira and P P Freitas Room temperature direct detection of low frequency magnetic fields in the 100 pT/Hz(0.5) range using large arrays of magnetic tunnel junctions Journal Article J. App. Phys., 115 (17), pp. 17E501, 2013. Links | BibTeX @article{Paz2013,
title = {Room temperature direct detection of low frequency magnetic fields in the 100 pT/Hz(0.5) range using large arrays of magnetic tunnel junctions},
author = {E Paz and S Serrano-Guisan and R Ferreira and P P Freitas},
doi = {10.1063/1.4859036},
year = {2013},
date = {2013-10-01},
journal = {J. App. Phys.},
volume = {115},
number = {17},
pages = {17E501},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
J Amaral and V Pinto and T Costa and J Gaspar and R Ferreira and E Paz and S Cardoso and P P Freitas Integration of TMR Sensors in Silicon Microneedles for Magnetic Measurements of Neurons Journal Article IEEE Trans. Magn, 49 (7), pp. 3515-3515, 2013. Links | BibTeX @article{Amaral2013,
title = {Integration of TMR Sensors in Silicon Microneedles for Magnetic Measurements of Neurons},
author = {J Amaral and V Pinto and T Costa and J Gaspar and R Ferreira and E Paz and S Cardoso and P P Freitas},
doi = {10.1109/TMAG.2013.2239274},
year = {2013},
date = {2013-07-15},
journal = {IEEE Trans. Magn},
volume = {49},
number = {7},
pages = {3515-3515},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
R Ferreira and E Paz and P P Freitas and J Wang and S Xue Large Area and Low Aspect Ratio Linear Magnetic Tunnel Junctions with a Soft-Pinned Sensing Layer Journal Article IEEE Trans. Magn, 48 (11), pp. 3719, 2012. Links | BibTeX @article{Ferreira2012,
title = {Large Area and Low Aspect Ratio Linear Magnetic Tunnel Junctions with a Soft-Pinned Sensing Layer},
author = {R Ferreira and E Paz and P P Freitas and J Wang and S Xue},
url = {https://doi.org/10.1109/TMAG.2012.2200468},
doi = {10.1109/TMAG.2012.2200468},
year = {2012},
date = {2012-10-18},
journal = {IEEE Trans. Magn},
volume = {48},
number = {11},
pages = {3719},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
R Ferreira and E Paz and P P Freitas and J Ribeiro and J Germano and L Sousa 2-axis Magnetometers Based on Full Wheatstone Bridges Incorporating Magnetic Tunnel Junctions Connected in Series Journal Article IEEE Trans. Magn, 48 (11), pp. 4107, 2012. Links | BibTeX @article{Ferreira2012b,
title = {2-axis Magnetometers Based on Full Wheatstone Bridges Incorporating Magnetic Tunnel Junctions Connected in Series},
author = {R Ferreira and E Paz and P P Freitas and J Ribeiro and J Germano and L Sousa},
url = {https://doi.org/10.1109/TMAG.2012.2202381},
doi = {10.1109/TMAG.2012.2202381},
year = {2012},
date = {2012-10-18},
journal = {IEEE Trans. Magn},
volume = {48},
number = {11},
pages = {4107},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
R J Janeiro and L Gameiro and A Lopes and S Cardoso and R Ferreira and E Paz and P P Freitas Linearization and Field Detectivity in Magnetic Tunnel Junction Sensors Connected in Series Incorporating 16nm-thick NiFe Free Layers Journal Article IEEE Trans. Magn, 48 (11), pp. 4111, 2012. Links | BibTeX @article{Janeiro2012,
title = {Linearization and Field Detectivity in Magnetic Tunnel Junction Sensors Connected in Series Incorporating 16nm-thick NiFe Free Layers},
author = {R J Janeiro and L Gameiro and A Lopes and S Cardoso and R Ferreira and E Paz and P P Freitas},
doi = {10.1109/TMAG.2012.2202887},
year = {2012},
date = {2012-10-18},
journal = {IEEE Trans. Magn},
volume = {48},
number = {11},
pages = {4111},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
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