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ICMAB PhD Thesis: Memristive effects in LSMO/YBCO heterostructures: Toward cryogenic artificial synapses
Friday, 23 October 2026, 12:00
Sala d'Actes MATGAS and ONLINE

PhD Candidate: Thomas Günkel

Abstract:

This thesis investigates memristive effects in heterostructures of the high-temperature superconductor YBa₂Cu₃O₇–δ and ferromagnetic La₀.₇Sr₀.₃MnO₃. It presents the phenomenological observation of memristive behavior in this material system and investigates the underlying conduction mechanism, with space-charge-limited conduction identified as the dominant transport mechanism. Building on these results, a compact circuit model compatible with LTspice is developed to reproduce the experimentally observed memristive behavior. The demonstrated synaptic-like functionality at cryogenic temperatures highlights the potential of cuprate-based memristive devices as circuit elements for future cryogenic neuromorphic hardware.

Supervisors

  • Anna Palau, ICMAB-CSIC
  • Jordi Suñé, UAB

PhD Committee  

  • President: Mónica Burriel, INMA, Spain
  • Secretary: Xavier Obradors, ICMAB, Spain
  • Vocal: María Helena Castán, Universidad de Valladolid, Spain

University: Universitat Autònoma de Barcelona (UAB)

PhD Programme: Materials Science

IN-PERSON and Online (Register here)

 

External Event
Barcelona Nanocluster
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