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Rencontre automnale 2025 de l'INTRIQ

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Fall 2025 INTRIQ meeting

date

November 18, 2025 10:55 AM

-

November 19, 2025 4:30 PM

Date

November 18, 2025 10:55 AM

-

November 19, 2025 4:30 PM

billet

$

Incription gratuite pour les membres

Ticket

$

Free registration for members

Free Admission

lieu de l'événement

Hôtel Château Bromont

event location

Hôtel Château Bromont

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Rencontre automnale 2025 de l'INTRIQ

Programme préliminaire

18 novembre

10h55  Mot d'ouverture (Salon A)

11h00  Présentation (Salon A)

12h00  Diner (Salle Knowlton)

13h30  Présentation (Salon A)

14h30  Présentation  (Salon A)

15h00  Pause café (Salon C)

15h30  Présentation (Salon A)

16h00  Présentation (Salon A)

16h30  Session : Écosystème quantique (Salon A)

17h00  Session d'affiche avec rafraîchissement (Salon C)

19h30  Souper INTRIQ (Salle Knowlton)

19 novembre

9h00  Présentation (Salon A)

10h00  Présentation (Salon A)

10h30  Pause café (Salon C)

11h00  Présentation (Salon A)

12h00  Diner (Salle Knowlton)

13h30  Présentation (Salon A)

14h30  Présentation (Salon A)

15h00  Pause café (Salon C)

15h30  Présentation (Salon A)

16h00  Présentation (Salon A)

16h25  Mot de fermeture (Salon A)

Session d'affiches

Baptiste Monge

Doctorant, Université de Sherbrooke
Directeur: Max Hofheinz
Titre à venir

Louis Rosignol

Doctorant, Université McGill
Directeur: Hong Guo
Alloy Disorder and Partial Order Effects on the Bowing Parameter and Resistivity of CdZnTe Semiconductors
Cd1–xZnxTe (CZT) is an important semiconductor for applications in radiation detectors. As different concentrations of Zn, x, are alloyed into the CdTe crystal, the band gap of CZT varies with x which can be described by a bowing parameter b that is independent of x. For CZT alloys, however, the measured b appears to have a full range of values, from very small to near unity, across CZT samples fabricated by different methods, experimental conditions, and labs. Such a large variation most likely reflects the microscopic details of the CZT atomic structures. In this work, we theoretically investigated atomic arrangements in the CZT on the bowing parameter by first principles modeling and found that the large variation in the bowing parameter may arise from uneven atomic distributions in partially ordered configurations. Such configurations represent intermediate states between fully disordered and fully ordered alloy structures. In particular, the completely randomized Zn distribution gives rise to small bowing parameters, and the partially ordered structures tend to produce much higher bowing. By comparing ZnTe/CdTe interface models with completely disordered models, this work provides valuable insights into the relationship between atomic arrangements, atomic-scale inhomogeneity, and the electronic properties of CZT. Finally, the disorder-limited resistivities of the CZT alloy models are calculated and compared.

Samuel Wolski

Doctorant, Université de Sherbrooke
Directeur: Mathieu Juan
Vector magnet control for on-chip magnonics

Fall 2025 INTRIQ meeting

Preliminary program

November 18th

10:55  Opening remarks (Salon A)

11:00  Talk (Salon A)

12:00  Lunch (Knowlton room)

13:30  Talk (Salon A)

14:30  Talk (Salon A)

15:00  Coffee break (Salon C)

15:30  Talk (Salon A)

16:00  Talk (Salon A)

16:30  Quantum Ecosystem session (Salon A)

17:00  Poster session with refreshments (Salon C)

19:30  INTRIQ dinner (Knowlton room)

November 19th

9:00  Talk (Salon A)

10:00  Talk (Salon A)

10:30  Coffee break (Salon C)

11:00  Talk (Salon A)

12:00  Lunch (Knowlton room)

13:30  Talk (Salon A)

14:30  Talk (Salon A)

15:00  Coffee break (Salon C)

15:30  Talk (Salon A)

16:00  Talk (Salon A)

16:25  Closing remarks (Salon A)

Poster session

Baptiste Monge

PhD student, Université de Sherbrooke
Director: Max Hofheinz
Title to be announced

Louis Rosignol

PhD studen, McGill UniversityDirector: Hong Guo
Alloy Disorder and Partial Order Effects on the Bowing Parameter and Resistivity of CdZnTe Semiconductors
Cd1–xZnxTe (CZT) is an important semiconductor for applications in radiation detectors. As different concentrations of Zn, x, are alloyed into the CdTe crystal, the band gap of CZT varies with x which can be described by a bowing parameter b that is independent of x. For CZT alloys, however, the measured b appears to have a full range of values, from very small to near unity, across CZT samples fabricated by different methods, experimental conditions, and labs. Such a large variation most likely reflects the microscopic details of the CZT atomic structures. In this work, we theoretically investigated atomic arrangements in the CZT on the bowing parameter by first principles modeling and found that the large variation in the bowing parameter may arise from uneven atomic distributions in partially ordered configurations. Such configurations represent intermediate states between fully disordered and fully ordered alloy structures. In particular, the completely randomized Zn distribution gives rise to small bowing parameters, and the partially ordered structures tend to produce much higher bowing. By comparing ZnTe/CdTe interface models with completely disordered models, this work provides valuable insights into the relationship between atomic arrangements, atomic-scale inhomogeneity, and the electronic properties of CZT. Finally, the disorder-limited resistivities of the CZT alloy models are calculated and compared.

Samuel Wolski

PhD student, Université de Sherbrooke
Director: Mathieu Juan
Vector magnet control for on-chip magnonics

Event Recording