Thomas Günkel will defend his PhD thesis on 23 October 2026
The PhD researcher Thomas Günkel from the SuperQMat group at ICMAB-CSIC, will defend her PhD thesis on Friday, 23 October 2026 at ICMAB
Memristive Effects in LSMO/YBCO Heterostructures: Toward Cryogenic Artificial Synapses
PhD Candidate: Thomas Günkel
Date: Friday, 23 October 2026 Time: 12.00 PM Venue: Sala d'Actes MATGAS & ONLINE (Register here)
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)
