?Is Ta2NiSe5 an excitonic insulator
Seminar
QUEST Center event
No
Speaker
Amit Kanigel, Technion
Date
18/01/2024 - 13:30 - 12:30Add to Calendar
2024-01-18 12:30:00
2024-01-18 13:30:00
?Is Ta2NiSe5 an excitonic insulator
The excitonic insulator phase is characterized by spontaneous formation of excitons, which condense and open a gap in the single-particle spectrum. Nevertheless, conclusively recognizing an excitonic insulator poses difficulties due to the concurrent occurrence of structural phase transitions in candidate materials. I will address the ongoing, decade-long debate surrounding the semimetal-to-insulator transition in Ta2NiSe5 and the contentious discussion about its physical origin.
Conference room on the 0th floor of Resnick building
המחלקה לפיזיקה
physics.dept@mail.biu.ac.il
Asia/Jerusalem
public
Place
Conference room on the 0th floor of Resnick building
Abstract
The excitonic insulator phase is characterized by spontaneous formation of excitons, which condense and open a gap in the single-particle spectrum. Nevertheless, conclusively recognizing an excitonic insulator poses difficulties due to the concurrent occurrence of structural phase transitions in candidate materials. I will address the ongoing, decade-long debate surrounding the semimetal-to-insulator transition in Ta2NiSe5 and the contentious discussion about its physical origin.
תאריך עדכון אחרון : 12/01/2024
