Fysikermøtet 2025 NTNU Trondheim

Session

Parallell B1

16 Jun 2025, 15:45

EL5 (Gamle Elektro)

139. Large tunable thermoelectric effects in superconducting spin valves

16/06/2025, 15:45

Oral presentation

A tunable cryogenic thermoelectric generator needs a high conversion factor between electricity and heat and a large change in the thermoelectric output when switching the magnetic state of the device. Recent studies have revealed magnetically controllable thermoelectric effects in superconductor/ferromagnet (S/F) structures. However, the reported modifications in thermoelectric power are...

143. Confined colloidal droplets dry to form circular mazes

16/06/2025, 16:00

Oral presentation

Pattern recognition is fundamental to human nature that has allowed humanity to evolve and thrive. As a result, we have a natural affinity for patterns that exist all around us in the natural world, from honeycomb to constellations. Here, we present the pattern formation of colloidal droplets allowed to dry slowly in a vertical confinement. The pattern left behind is a unique labyrinth of...

111. Discrete conformal symmetry and integrable spin chains

Zhao Zhang (University of Oslo)

16/06/2025, 16:15

Oral presentation

It has been a long-standing problem in quantum integrability whether Reshetikhin's condition, which provides a three-local conserved charge, implies the existence of sufficient many mutually commuting local charges that guarantee integrability. In an attempt to answer this question, I reveal the discrete conformal algebra hidden in Yang-Baxter integrable 1D systems, and propose a practical...

121. Investigating Pore-scale air-water interfacial fluctuations in multiphase flow via time-resolved X-ray computed tomography

Mukul Jaiswal (Norwegian University of Science and Technology)

16/06/2025, 16:30

Oral presentation

Multiphase flow in a porous media is a widespread phenomenon with significance spanning from daily life to cutting-edge scientific fields and has hence been studied for centuries. Notable examples in geophysics include environmental cleanup, CO2 sequestration, and water purification. When one fluid phase displaces another inside a porous medium, intricate dynamics plays out across diverse...

131. Geometrical and Topological Ideas in Condensed Matter Physics

Gunnar Felix Lange (University of Oslo)

16/06/2025, 16:45

Oral presentation

Topological ideas have come to the forefront of condensed matter physics
in recent decades, since the discovery and subsequent explanation of the
integer quantum Hall effect. Today, these ideas are showing up in various
subfields, and play important roles in guiding future theoretical
and experimental research.

A more recent direction in this field is to couple topological ideas
with...

132. Role of Thickness in Magnon Propagation Across Antiferromagnetic Insulators

Mathias Myhre (NTNU)

16/06/2025, 17:00

Oral presentation

The diffusion of spin-waves or magnons in magnetic insulators is a promising candidate for sending signals in spintronic-based logical units that can outperform classical electronic current-based devices.
We present numerical simulations of magnon transport at finite temperature and its dependence on the material thickness in antiferromagnetic (AFM) insulators with material parameters from...