| Abstract: | The effective Hamiltonians that describe the low‐lying energy states of some stacked organometallic ferromagnets with dopants have been derived. It is shown that the lattice stack with N unit cells and p conduction electrons has the ground‐state spin S0=(N+p)/2 at p<N and S0≤(3N−p)/2 at N≤p<2N. This means that the ferromagnetic ground state of metallocene‐based donor–acceptor stack is unstable to the donor doping and is stable to the acceptor doping. ©1999 John Wiley & Sons, Inc. Int J Quant Chem 73: 511–517, 1999 |
