Overview

The Magnetic Random Access Memories (MRAM) group develops advanced concepts in this emerging technology. The goal is to realize cells with improved thermal stability, lower power consumption and/or faster switching. Our research covers material stack deposition, nano-fabrication and electrical test evaluation, for applications as standalone memory and non-volatile logic and more recently in neuromorphic computing architectures.

Research directions

Perpendicular Anisotropy Materials

High energy barriers for spin transfer torque (STT) MRAM cells can be achieved with perpendicular anisotropy magnetic tunnel junctions. Solutions for high density MRAM cells to diameters below 20nm require continuous improvements in perpendicular surface anisotropy, while maintaining high TMR properties.

Perpendicular STT MRAM

Evaluation of MRAM concepts requires simulation of expected reversal mechanisms and electrical characterization of individual cells. We aim at understanding dynamics of magnetization reversal and the expected impact of stack modifications to explore application specific optimizations.

Nanofabrication Challenges

Innovation on dense MRAM using pre-patterned substrates, CMOS integration of multifunctional cells and sub-10nm lateral sizes. Tunnel junction nanofabrication in our platform is essential to evaluate MRAM concepts and performance.

Perpendicular Shape Anisotropy

A solution for sub-10nm cell sizes uses high aspect ratios to generate perpendicular shape anisotropy providing scalable retention at the smallest cell sizes. Spin transfer torque switching is possible in these cells, where the reversal dynamics is now under study.

The team

BIAGI Marco

PhD student

CAPRIATA Corrado

Post-doc

CURCI Giuseppe

Internship student

DIENY Bernard

Research scientist

GARELLO Kevin

Research scientist

KARAOUI Hanna

PhD student

PREJBEANU Lucian

Research scientist

QUINTINO PALHARES Joao Henrique

Post-doc

SENAPATI Kintali Subham

PhD student

SOUSA Ricardo

Research scientist

TRINH Quoc Trung

PhD student

Recent news

• Magnetic vortex dynamics probed by time-resolved magnetic helicoidal dichroism (September 12th, 2025)
  Time-resolved magnetic helicoidal dichroism (MHD) was successfully used to assess the ultra-fast dynamics of magnetization. This first attempt to use an MHD-based technique was demonstrated on a magnetic vortex structure hosted by a permalloy pacman ...
  
• Nanosecond stochastic operation in perpendicular superparamagnetic tunnel junctions (September 08th, 2025)
  Superparamagnetic tunnel junctions have emerged as promising stochastic neurons for low-energy cognitive computing. We report, for the first time, nanosecond-scale mean waiting times between magnetization reversals in perpendicularly magnetized tunnel junctions, enabled by a strong ...
  
• Seminar – Symmetry aspects of antiferromagnets and altermagnets (June 20th, 2025)
  On Monday June 30, 2025 at 14:00 Sergey A. NIKOLAEV from Osaka University (Japan) will give online seminar entitled: Symmetry aspects of antiferromagnets and altermagnets Video conference: https://univ-grenoble-alpes-fr.zoom.us/j/98769867024 Meeting ID: 987 6986 7024 Passcode: 025918 Abstract: Antiferromagnets being an ...
  
• Seminar – Spin dynamics and magnetotransport in ultra-low damping Co_100-xFe_x layers (June 10th, 2025)
  On Wednesday June 11, 2025 at 13:00 we have the pleasure to welcome Luis AVILES FELIX from Instituto de Nanociencia y Nanotecnología (CNEA-CONICET), Bariloche (Argentina). He will give us a seminar entitled: Spin dynamics and magnetotransport ...
  
• Post-Doctoral and fixed term R&D Engineer openings at SPINTEC (December 16th, 2024)
  Project: SPINTEC offers several 24-month positions for postdoctoral researchers or research engineers, funded by the EU and French National Research Agency ANR. The projects focus on spintronic innovations for a sustainable digital technology, emphasizing advanced ...
  

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Publications