Magnetic-field-induced Fermi surface reconstruction in Na${}_{0.5}$CoO${}_2$

L. Balicas, M. Abdel-Jawad, N. E. Hussey +2

We have performed electrical transport measurements at low temperatures and high magnetic fields in Na${}_{0.5}$CoO${}_2$ single crystals. Shubnikov de Haas oscillations were observed…