IAMM/CAMM Tea Tim Room: 3rd floor lobby

Research Meeting

• Norman Mannella

Room: 313

Research Meeting

• Elbio Dagotto

Room: 306

Optional Research Meeting / Lab tour

• Yishu Wang (University of Tennessee Knoxville)

Room: 312

Research Meeting

• Hu Miao (ORNL)

Room: 312

Seminar: Alloying magnetic metals in “2D”: from old wisdom to new physics 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

Lunch & Research Meeting

• Huibo Cao (ORNL)

Room: 312

Research Meeting

• Alan Tennant

Room: 309

Research Meeting

• Cristian Batista

Room: 3rd floor

Research Meeting

• Steve Johnston

Room: 330

Research Meeting

• Hanno Weitering

Room: 303

Research Meeting

• Jian Liu

Room: 239

Research Meeting

• Ruixing Zhang

Room: 323

Research Meeting

• Rob Moore (ORNL)

Room: 312

Lab tour (Ko lab)

• Wooin Yang

Room: G007