15–20 May 2022
Hotel Hermitage, La Biodola Bay, Elba Island, Italy
Europe/Rome timezone

Emergent quantum states visualized by the cutting-edge ARPES instruments at BESSY II

17 May 2022, 18:50
1h 10m
Hotel Hermitage, La Biodola Bay, Elba Island, Italy

Hotel Hermitage, La Biodola Bay, Elba Island, Italy

Biodola Bay 57037 Portoferraio (LI) Isola d’Elba - Italy

Speaker

Rui Lou (IFW Dresden and HZB)

Description

At three end stations at BESSY II with cutting-edge angle-resolved photoemission spectroscopy (ARPES) instruments, we are able to study various electronic properties of quantum materials due to the versatile functions of our end stations. ARPES 1^3 station provides the highest energy resolution (~1 meV) at ultimately low sample temperatures (~1 K). ARPES 1^2 station allows for a broad exploration of reciprocal space and has versatile sample handling and preparation facilities. The Spin-ARPES system can detect the three components of the spin polarization vector with high energy and momentum resolutions. Here, we give examples from our recent work on three different material systems done at BESSY II: 1. Superconducting gap in the kagome superconductor CsV3Sb5. 2. Magnetic gap at the Dirac point in the topological insulator heterostructure system of Bi2Te3/MnBi2Te4 3. New type of Fermi arc in the antiferromagnet NdBi.

Primary author

Rui Lou (IFW Dresden and HZB)

Co-authors

Emile D. L. Rienks (Helmholtz-Zentrum Berlin für Materialien und Energie) Alexander Fedorov Jaime Sánchez-Barriga Andrei Varykhalov Sergey Borisenko Oliver Rader

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