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

DIENY Bernard

Research scientist

GARELLO Kevin

Research scientist

KARAOUI Hanna

PhD student

MARTIN RIO Sergi

PhD student

PHAN Nhat Tan

PhD student

PREJBEANU Lucian

Research scientist

SENAPATI Kintali Subham

PhD student

SOUSA Ricardo

Research scientist

TRINH Quoc Trung

PhD student

Recent news

• Best poster award at INTERMAG 2023 (May 17th, 2023)
  Théo FROTTIER is among Best Poster Award winners at INTERMAG 2023 Conference taking place in May 2023 in Sendai, Japan. The title of the poster prepared with Aurélie KANDAZOGLOU, Cécile GREZES of Topological Spintronics team ...
  
• Four years engineer researcher position (May 12th, 2023)
  Spintec laboratory is opening a four years engineer researcher position in the framework of the PEPR electronics (part of France 2030 strategy) – project EMCOM (emerging memories for computing).   Context: The cost of transferring information between ...
  
• [POSITION FILLED] PhD grant: exploring new designs addressing fabrication and read/write bottlenecks of Perpendicular-Shape-Anisotropy MRAM (April 13th, 2023)
  Position: The objective of the PhD project is to explore disruptive fabrication routes, cell and material designs to lift the two bottlenecks, related to fabrication and efficiency of the write operation with a spin-polarized current. While ...
  
• seminar – Measuring MRAM with Scanning NV Microscopy (March 03rd, 2023)
  On Tuesday, March 07th 2023, we have the pleasure to welcome in SPINTEC Mathieu MUNSCH CEO and Co-founder of QNAMI. He will give us a seminar at 16:00, entitled: Measuring MRAM with Scanning NV Microscopy Place: SPINTEC ...
  
• Seminar – Coupled magnetic and molecular dynamics: Methodology and application to the simulation of magneto-elastic effects in iron (March 01st, 2023)
  On Thursday, March 16 2023, we have the pleasure to welcome in SPINTEC Julien Tranchida, Research Scientist at CEA Cadarache. He will give us a seminar at 14:00, entitled: Coupled magnetic and molecular dynamics: Methodology and ...
  

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Publications