Anisotropy of magnetoresistance and the Shubnikov-de Haas oscillations in the organic metal β-(ET)2IBr2
Kartsovnik M. V., Kononovich P. A. , Laukhin V. N., Shchegolev I. F.
The field and angular dependences of the magnetoresistance of very high quality /?-(ET)2IBr2 single crystals in fields up to 150kOeat T= 1.45-4.2 К have been studied. Two types of Shubnikov-de Haas oscillations have been detected. The Fermi surface is shown to be open at least in the cross section of the ac* plane and it is noticeably bumpy near the c* direction. The transverse magnetoresistance is found to be strongly anisotropic in the ab plane.