Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session G10: Symmetry Broken States in Layered Materials
11:30 AM–2:18 PM,
Tuesday, March 5, 2024
Room: M100A
Sponsoring
Unit:
DCMP
Chair: Vesna Mitrovic, Brown University
Abstract: G10.00001 : Scanning tunneling microscopy/spectroscopy studies of monolayer FeTe on SrTiO3(001) - √13⨯√13*
11:30 AM–11:42 AM
Presenter:
Wen Si
(the University of Tokyo; Tokyo Institute of Technology)
Authors:
Wen Si
(the University of Tokyo; Tokyo Institute of Technology)
Bin Yu
(Tokyo Institute of Technology)
Satoru Ichinokura
(Tokyo Institute of Technology)
Toru Hirahara
(Tokyo Institute of Technology)
To clarify the above points, we performed low-temperature scanning tunneling microscopy/spectroscopy (STM/STS, T: 5 K ~ 77 K) experiments on the ML FeTe/SrTiO3-√13⨯√13.
Results [4]:
1. The STM data indicates a substrate-induced C2 rotational symmetry on ML FeTe, similar to ML FeSe on SrTiO3-√13⨯√13.
2. The STS spectra obtained on ML FeTe show Fano-line shape near the Fermi level, illustrating a Kondo scenario that localized Fe spins are screened by the conduction electrons.
3. Two types of Fano-line spectra were confirmed, and their spatial dependence follows the √13⨯√13 periodicities, indicating that the SrTiO3 substrate can modulate the interaction between the localized spin and conduction electrons mentioned above.
Details will be given in the presentation.
*This work has been supported by JSPS KAKENHI. Grant Numbers: JP22H04502, JP22K18966, 20H05183.
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