Shubnikov-de Haas oscillations in the bulk Rashba semiconductor BiTeI.

Authors :: Bell, C.
Bahramy, M. S.
Murakawa, H.
Checkelsky, J. G.
Arita, R.
Kaneko, Y.
Onose, Y.
Tokunaga, M.
Kohama, Y.
Nagaosa, N.
Tokura, Y.
Hwang, H. Y.
Source :: Physical Review B: Condensed Matter & Materials Physics. Feb2013, Vol. 87 Issue 8, p081109-1-081109-5. 5p.
Publication Year :: 2013
Abstract: Bulk magnetoresistance quantum oscillations are observed in high quality single crystal samples of BiTel. This compound shows an extremely large internal spin-orbit coupling, associated with the polarity of the alternating Bi, Te, and I layers perpendicular to the c axis. The corresponding areas of the inner and outer Fermi surfaces around the A point show good agreement with theoretical calculations, demonstrating that the intrinsic bulk Rashba-type splitting is nearly 360 meV, comparable to the largest spin-orbit coupling generated in heterostructures and at surfaces. [ABSTRACT FROM AUTHOR]