Disentanglement of surface and bulk rashba spin splittings in noncentrosymmetric BiTeI

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Landolt G., Eremeev S. V., Koroteev Y. M., Slomski B., Muff S., Neupert T., ...daha çox

Physical Review Letters, vol.109, no.11, 2012 (SCI-Expanded, Scopus)

• Nəşrin Növü: Article / Article
• Cild: 109 Say: 11
• Nəşr tarixi: 2012
• Doi nömrəsi: 10.1103/physrevlett.109.116403
• jurnalın adı: Physical Review Letters
• Jurnalın baxıldığı indekslər: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Açıq Arxiv Kolleksiyası: Məqalə
• Adres: Bəli

Qısa məlumat

BiTeI has a layered and noncentrosymmetric structure where strong spin-orbit interaction leads to a giant Rashba spin splitting in the bulk bands. We present direct measurements of the bulk band structure obtained with soft x-ray angle-resolved photoemission (ARPES), revealing the three-dimensional Fermi surface. The observed spindle torus shape bears the potential for a topological transition in the bulk by hole doping. Moreover, the bulk electronic structure is clearly disentangled from the two-dimensional surface electronic structure by means of high-resolution and spin-resolved ARPES measurements in the ultraviolet regime. All findings are supported by ab initio calculations. © 2012 American Physical Society.