Hartree-Fock study of molecules in very intense magnetic fields

We investigate the stability of homonuclear diatomic molecules from H₂ up to C₂ and of the finite chains Hₙ (n{≤}5) and Heₙ (n{≤}4) immersed in very intense magnetic fields (B{}10⁸ T). The atomic and molecular total energies are calculated within the one-dimensional Hartree-Fock approximation, using a Lagrange basis set associated with a Cartesian mesh. The stability of the molecules decreases beyond Li₂ although all the studied molecules are found stable. The energy per atom of H and He finite chains stabilizes already for the small chain sizes that we have investigated.