Details

Autor(en) / Beteiligte

• Siemann, Gesa-R.
• Kim, Seo-Jin
• Morales, Edgar Abarca
• Murgatroyd, Philip A. E.
• Zivanovic, Andela
• Edwards, Brendan
• Marković, Igor
• Mazzola, Federico
• Trzaska, Liam
• Clark, Oliver J.
• Bigi, Chiara
• Zhang, Haijing
• Achinuq, Barat
• Hesjedal, Thorsten
• Watson, Matthew D.
• Kim, Timur K.
• Bencok, Peter
• van der Laan, Gerrit
• Polley, Craig M.
• Leandersson, Mats
• Fedderwitz, Hanna
• Ali, Khadiza
• Balasubramanian, Thiagarajan
• Schmidt, Marcus
• Baenitz, Michael
• Rosner, Helge
• King, Phil D. C.

Titel

Spin-orbit coupled spin-polarised hole gas at the CrSe2-terminated surface of AgCrSe2

Ist Teil von

• npj quantum materials, 2023, Vol.8 (1), p.61-7, Article 61

Ort / Verlag

London: Nature Publishing Group

Erscheinungsjahr

2023

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Abstract In half-metallic systems, electronic conduction is mediated by a single spin species, offering enormous potential for spintronic devices. Here, using microscopic-area angle-resolved photoemission, we show that a spin-polarised two-dimensional hole gas is naturally realised in the polar magnetic semiconductor AgCrSe 2 by an intrinsic self-doping at its CrSe 2 -terminated surface. Through comparison with first-principles calculations, we unveil a striking role of spin-orbit coupling for the surface hole gas, unlocked by both bulk and surface inversion symmetry breaking, suggesting routes for stabilising complex magnetic textures in the surface layer of AgCrSe 2 .