Electron correlations in the 2D organic metal κ-(BEDT-TTF)2I3 at high Landau level filling factors Original Research Article

In the two-dimensional (2D) multilayer organic metal κ-(BEDT-TTF)2I3 strong electron correlations are present at magnetic fields B>12 T and temperatures T<1 K. These correlations manifest themselves in strong anomalous damping effects of magnetoquantum oscillations at high magnetic fields, which are controlled by the low Landau level filling factors ν<3 in a part of the Fermi surface (FS). It is found that the electron correlations capture all electrons of the FS, including even the parts with very high ν.