Yu He - Yale University
from
Tuesday, September 16, 2025 (2:00 PM)
to
Wednesday, September 17, 2025 (8:30 PM)
Monday, September 15, 2025
Tuesday, September 16, 2025
2:00 PM
Pickup
2:00 PM - 2:30 PM
2:30 PM
IAMM/CAMM Tea Tim
IAMM/CAMM Tea Tim
2:30 PM - 3:30 PM
Room: 3rd floor lobby
3:30 PM
Research Meeting
-
Norman Mannella
Research Meeting
Norman Mannella
3:30 PM - 4:00 PM
Room: 313
4:00 PM
Research Meeting
-
Elbio Dagotto
Research Meeting
Elbio Dagotto
4:00 PM - 4:45 PM
Room: 306
4:45 PM
Optional Research Meeting / Lab tour
-
Yishu Wang
(
University of Tennessee Knoxville
)
Optional Research Meeting / Lab tour
Yishu Wang
(
University of Tennessee Knoxville
)
4:45 PM - 5:45 PM
Room: 312
6:45 PM
Dinner
Dinner
6:45 PM - 8:45 PM
Wednesday, September 17, 2025
9:00 AM
Pickup
9:00 AM - 9:30 AM
9:30 AM
Research Meeting
-
Hu Miao
(
ORNL
)
Research Meeting
Hu Miao
(
ORNL
)
9:30 AM - 10:00 AM
Room: 312
10:00 AM
Talk Prep
Talk Prep
10:00 AM - 10:20 AM
10:20 AM
Seminar: Alloying magnetic metals in “2D”: from old wisdom to new physics
Seminar: Alloying magnetic metals in “2D”: from old wisdom to new physics
10:20 AM - 11:20 AM
Room: 147
Transition metal chalcogenide is a key host for van der Waals magnets, many of which maintain magnetism down to the thin layer limit. Recent discovery of ultrasensitive magnetism in Fe-based transition metal chalcogenide magnets - Ni-doped Fe5GeTe2 and Fe-intercalated NbS2 - raised the question of how such tunable magnetism is achieved, and how do they differ (if at all) from elemental magnetic thin films. Motivated by the uncanny resemblance between the (Ni,Fe)5GeTe2 and Ni-Fe alloy phase diagrams, we combine spin- and angle-resolved photoemission spectroscopy with operando synchrotron x-ray diffraction, and show that such group VIII element-rich "high-Tc" vdW magnets can to some extent be considered "atomically encapsulated" magnetic alloys within the vdW skeleton. However, their distinct magnetic site-selectivity, cross vdW gap interaction, and tunable low-energy flatbands all offer unique sensitivity and flexibility behind the highly tunable magnetism. I will also discuss our recent collaboration to use cross-domain machine-learning to identify thermodynamic transitions based on the spectral function of strongly fluctuating low dimensional materials. Reference: [1] Chen et al., Newton 1, 100066 (2025) [2] Li, et al., arxiv: 2509.03327 (under review) Zoom: https://tennessee.zoom.us/j/86292515289
11:30 AM
Break
Break
11:30 AM - 1:00 PM
1:00 PM
Lunch & Research Meeting
-
Huibo Cao
(
ORNL
)
Lunch & Research Meeting
Huibo Cao
(
ORNL
)
1:00 PM - 1:30 PM
Room: 312
1:30 PM
Research Meeting
-
Alan Tennant
Research Meeting
Alan Tennant
1:30 PM - 2:00 PM
Room: 309
2:00 PM
Research Meeting
-
Cristian Batista
Research Meeting
Cristian Batista
2:00 PM - 2:30 PM
Room: 3rd floor
2:30 PM
Research Meeting
-
Steve Johnston
Research Meeting
Steve Johnston
2:30 PM - 3:00 PM
Room: 330
3:00 PM
Research Meeting
-
Hanno Weitering
Research Meeting
Hanno Weitering
3:00 PM - 3:30 PM
Room: 303
3:30 PM
Research Meeting
-
Jian Liu
Research Meeting
Jian Liu
3:30 PM - 4:00 PM
Room: 239
4:00 PM
Research Meeting
-
Ruixing Zhang
Research Meeting
Ruixing Zhang
4:00 PM - 4:30 PM
Room: 323
4:30 PM
Research Meeting
-
Rob Moore
(
ORNL
)
Research Meeting
Rob Moore
(
ORNL
)
4:30 PM - 5:00 PM
Room: 312
5:00 PM
Lab tour (Ko lab)
-
Wooin Yang
Lab tour (Ko lab)
Wooin Yang
5:00 PM - 5:30 PM
Room: G007
6:00 PM
Dinner
Dinner
6:00 PM - 8:00 PM