MTJ nanopillar fabrication

INL is capable to fabricate nanopillars out of MTJ stacks with diameters below 100 nm. We succeeded with the typical stack with free layer on top of the stack as well as reversed stacks. The later have the benefit of a free layer that is in direct contact with the bottom contact material. These two approaches were applied to fabricate devices used for research on MTJ-based spin transfer torque nano-oscillators (STNOs) and Spin Hall nano-oscillators (SHNOs) described in the following.

 

72 entries « 2 of 2 »

D C Leitao and E Paz and A Silva and A Moskaltsova and S Knudde and F L Deepak and R Ferreira and S Cardoso and P P Freitas

Nanoscale Magnetic Tunnel Junction Sensing Devices With Soft Pinned Sensing Layer and Low Aspect Ratio Journal Article

IEEE Trans. Magn, 50 (11), pp. 4410508, 2014.

Links | BibTeX

F A Cardoso and L S Rosado and F Franco and R Ferreira and E Paz and S Cardoso and P M Ramos and M Piedade and P P Freitas

Improved Magnetic Tunnel Junctions Design for the Detection of Superficial Defects by Eddy Currents Testing Journal Article

IEEE Trans. Magn, 50 (11), pp. 6201304, 2014.

Links | BibTeX

X Q Bao and R Ferreira and E Paz and D Leitao and A Silva and S Cardoso and P P Freitas and L F.Liu

Ordered arrays of tilted silicon nanobelts with enhanced solar hydrogen evolution performance Journal Article

Nanoscale, 6 , pp. 2097-2101, 2014.

BibTeX

A Roldán and J B Roldán and C Reig and S Cardoso and F Cardoso and R Ferreira and P P Freitas

An in-depth noise model for giant magnetoresistance current sensors for circuit design and complementary metal–oxide–semiconductor integration Journal Article

Journal of Applied Physics, 115 (17), pp. 17E514, 2014.

Links | BibTeX

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

Z Hou and A Silva and D C Leitao and R Ferreira and S Cardoso and P P Freitas

Micromagnetic and magneto-transport simulations of nanodevices based on MgO tunnel junctions for memory and sensing applications Journal Article

Physica B: Condensed Matter, 435 , pp. 163-167, 2014.

Links | BibTeX

D W Guo and F A Cardoso and R Ferreira and E Paz and S Cardoso and P P Freitas

MgO-based magnetic tunnel junction sensors array for non-destructive testing applications Journal Article

J. Appl. Phys., 115 , pp. 17E513, 2014.

Links | BibTeX

F A Cardoso and L Rosado and R Ferreira and E Paz and S Cardoso and P M Ramos and M Piedade and P P Freitas

Magnetic tunnel junction based eddy current testing probe for detection of surface defects Journal Article

J. Appl. Phys., 115 (17), pp. 15E16, 2014.

Links | BibTeX

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

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

A Silva and D Leitao and Z Huo and R Macedo and R Ferreira and E Paz and F L Deepak and S Cardoso and P P Freitas

Switching Field Variation in MgO Magnetic Tunnel Junction Nanopillars: Experimental Results and Micromagnetic Simulations Journal Article

IEEE Trans. Magn, 49 (7), pp. 4405-4408, 2013.

BibTeX

A Lopes and S Cardoso and R Ferreira and E Paz and F L Deepak and J Sanchez and D Ramirez and S Ravelo and P P Freitas

MgO Magnetic Tunnel Junction Electrical Current Sensor With Integrated Ru Thermal Sensor Journal Article

IEEE Trans. Magn, 49 (7), pp. 3866-3869, 2013.

Links | BibTeX

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

S Cardoso and L Gameiro and D C Leitao and F Cardoso and R Ferreira and E Paz and P P Freitas and U Schmid and J Aldavero and M LeesterSchaede

Magnetic tunnel junction sensors with pTesla sensitivity for biomedical imaging Journal Article

Smart Sensors, Actuators, and Mems, pp. 8763, 2013.

Links | BibTeX

F Delgado and K Lopez and R Ferreira and J Fernández-Rossier

Intrinsic Spin Noise in MgO Magnetic Tunnel Junctions Journal Article

Appl. Phys. Lett., 102 (63102), 2013.

Links | BibTeX

N Liebing and S Serrano-Guisan and P Krzysteczko and K Rott and G Reiss and J Langer and B Ocker and H W Schumacher

Tunneling magneto thermocurrent in CoFeB/MgO/CoFeB based magnetic tunnel junctions Journal Article

Applied Physics Letters, 102 (24), pp. 242413, 2013.

Links | BibTeX

S Arias and D Munoz and J Moreno and S Cardoso and R Ferreira and P P Freitas

Fractional Modeling of the AC Large-Signal Frequency Response in Magnetoresistive Current Sensors Journal Article

Sensors, 13 (12), pp. 17516-17533, 2012.

Links | BibTeX

J Ventura and J M Teixeira and E Paz and J S Amaral and J D Costa and J P Araujo and S Cardoso and R Ferreira and P P Freitas

The influence of annealing on the bimodal distribution of blocking temperatures of exchange biased bilayers Journal Article

Phys. Status Solidi RRL, 7 (9), pp. 676-680, 2012.

BibTeX

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

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

J Sanchez and D Ramirez and S Ravelo and A Lopes and S Cardoso and R Ferreira and P P Freitas

Electrical Characterization of a Magnetic Tunnel Junction Current Sensor for Industrial Applications Journal Article

IEEE Trans. Magn, 48 (11), pp. 2823, 2012.

Links | BibTeX

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

72 entries « 2 of 2 »

back to Spintronics