RE-T-silicon/-germanium intermetallic materials

The transition metal (T) and rare-earth metal (R) adatoms are predicted to reveal the non-uniform pentagons with the neighboring atoms. The covalent π and σ bondings are fully assisted by the metallic T-Ge, R-Ge, T-T, or R-R ones. Hence, the addressed 1D systems belong to the ferromagnetic metals with the spin-split energy subbands and observable magnetic moments. The optical excitations could be regarded the coupled quasiparticles of the initial and final states. The well-defined composite quasiparticles are successfully developed under such cases. The diverse heterojunctions come to exist in the basic and applied science researches because of experimental syntheses, greatly enhanced functionalities, and highly potential applications. The successful growths of semiconductors and semiconductor compounds are done by MBE on the specific substrates.