2026 CAP Congress / Congrès de l'ACP 2026

Session

(DCMMP) M3-4 Hard Matter 3: Phonons and More | Matière dure 3: Les phonons et bien plus encore (DPMCM)

M3-4

22 Jun 2026, 16:15

U. Ottawa - Learning Crossroads (CRX) Building

523. Chiral Phonons at Simple Cubic (111) Surfaces

Brennan Cornell (Trent University)

22/06/2026, 16:15

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Chiral phonons are found in crystalline materials that break inversion symmetry or time-reversal symmetry such as the honeycomb lattice. The simple cubic lattice does not satisfy these constraints, but the (111) surface of a simple cubic can be made to do so under certain conditions. We discuss a method to break the symmetry of the simple cubic lattice, and enable the emergence of...

617. Phonons Below 40 meV in a Series of 214 Cuprate Superconductors at the 1/8 Hole Doping Anomaly, where Superconducting Tc Caries from 3 K to 27 K

Xinran Liu (McMaster University)

22/06/2026, 16:30

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

The La2-x-yNdy=0.4Srx=0.125CuO4 (Nd-LSCO) system is one of three 214 families of quasi-two dimensional cuprate superconductors which has been tuned to 1/8 hole doping. At this doping, the three dimensional superconducting transition temperature, Tc, is strongly suppressed compared to hole doping concentrations near x=0.125 in Nd-LSCO. A similar “1/8 anomaly” describes the superconducting...

673. Tracking Coherent Phonon Dynamics in a Quantum Material with High Harmonic Spectroscopy

Vedran Jelic (National Research Council Canada)

22/06/2026, 16:45

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral (Non-Student) / Orale (non-étudiant(e))

High harmonic spectroscopy (HHS) has emerged as a powerful all-optical probe of ultrafast electronic and lattice dynamics in solids. I will present how time-resolved HHS can be used to study coherently driven phonons in the type-II Weyl semimetal WTe$_2$. Following ultrafast near-infrared excitation, coherently launched lattice oscillations modulate the electronic band structure and, in turn,...

674. Visualization of Defect Electronic states in Layered Semiconductor CrSBr

Jonathan Brunette (University of Ottawa)

22/06/2026, 17:00

Advancing Quantum Simulation based on 2 Dimensional Materials Through Canadian Collaboration / Faire progresser la simulation quantique basée sur les matériaux bidimensionnels grâce à une collaboration canadienne

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

Chromium sulfur bromide (CrSBr) is a 2D magnetic semiconducting material with a rectangular lattice that has attracted a lot of attention in recent years as it combines a rich magnetic phase diagram with axis-dependent electronic and optical properties. The presence of defects in CrSBr is believed to be connected to the details of the magnetic order and excitonic responses, yet their nature,...

799. Effects of large strain gradient in ferroelectrics and multiferroics on their local polarization and magnetization field profiles, as well as on their magnetoelectric coupling

Vinayak Venkataraman (Institut National de la Recherche Scientifique)

22/06/2026, 17:15

Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)

Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle)

Ferroelectrics and multiferroics have been widely recognized to play a significant role in next generation energy-efficient electronics, spintronics, and computing technologies, particularly in the fields of non-volatile information storage, sensing, actuation, and in-memory computing. Whilst ferroelectrics are well utilized today in piezoelectric actuators and sensors, RF/SAW filters,...