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12th International Workshop on Thin Films and New Ideas for Pushing the Limits of RF Superconductivity

21–25 Sept 2026
Crowne Plaza Chester, Chester, United Kingdom
Europe/London timezone

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Session

Pushing SRF Thin Films Limits: Theoretical Advances, Deposition Modeling & DFT

21 Sept 2026, 11:00
Prince of Wales Suite (Crowne Plaza Chester, Chester, United Kingdom)

Prince of Wales Suite

Crowne Plaza Chester, Chester, United Kingdom

Conveners

Pushing SRF Thin Films Limits: Theoretical Advances, Deposition Modeling & DFT

  • Claire Antoine

Presentation materials

SRFTF26-Theroy-Questions.pptx
  1. 30. Modelling flux vortex dynamics in type-II superconductors under a thermal gradient-driven phase transition with closed cooling topology
    Guilherme Theophilo Telles (CERN)
    21/09/2026, 11:00
    Pushing SRF Thin Films Limits: Theoretical Advances, Deposition Modeling & DFT

    While perfect type-II superconductors are expected to completely expel their internal magnetic flux after transitioning into the Meissner state, impurities and defects may cause some level magnetic flux to be trapped as vortices. Such trapped vortices can be problematic for SRF cavities, causing unwanted localized heating from vortex interaction with the applied RF field, while the trapped...

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  2. 11. Chemical Adsorption of Water on Niobium and Its Surface Oxides in the Medium-Temperature Baking Regime: An ab initio Study
    Shantong Chen (Institute of Modern Physics,CAS)
    21/09/2026, 11:20
    Pushing SRF Thin Films Limits: Theoretical Advances, Deposition Modeling & DFT

    The surface chemistry of superconducting radio-frequency (SRF) niobium cavities during medium-temperature baking (MTB, ~250–400 °C) has been widely investigated. However, atomic-scale insight into how water molecules—inevitably introduced by high-pressure rinsing (HPR)—interact with niobium and its surface oxides remains largely absent. Here, using first-principles calculations, we...

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  3. 19. Preliminary Particle-in-Cell Simulation Results of Plasma Discharge from a DC Magnetron Sputtering Device
    Dr Benzi John (STFC-UKRI)
    21/09/2026, 11:40
    Pushing SRF Thin Films Limits: Theoretical Advances, Deposition Modeling & DFT

    In this study, we report on preliminary results from plasma-kinetic particle-in-cell (PIC) simulations, investigating the plasma discharge phenomenon in a DC magnetron sputtering device for thin film deposition. As the quality of the sputtered films depend on the plasma chemical composition and interaction with the target material, it is important to understand and characterise the underlying...

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  4. 9. Multilayer model for coatings with arbitrary number of planar layers for SRF applications
    Mr Aaron Gobeyn (TU Darmstadt)
    21/09/2026, 12:00
    Pushing SRF Thin Films Limits: Theoretical Advances, Deposition Modeling & DFT

    We extend the model of Kubo et al. [1] in two ways: first, by generalizing it to a arbitrary sequences of planar layers of arbitrary type, e.g. superconducting (S), normal conducting and insulating (I); and second,
    by accounting for all contributions, including Ohmic losses and dielectric effects. We examine the maximum applicable field for (SI)$^n$S structures and find that the optimum...

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  5. 49. Pushing SRF Thin Films Limits: Theoretical Advances, Deposition Modeling & DFT - Discussion
    21/09/2026, 12:20
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