Molecular Magnets

Molecular magnets consist of magnetic metal ions core, surrounded by organic legends that can be tailored to tune intra and intermolecular magnetic couplings. These are interesting system due to their potential applications for high-density information Storage, and qubit implantation in quantum information processing. These applications require fast control of magnetic spin state over single molecular unit with nanometre spatial resolution. Spin state manipulation with such high temporal and spatial resolution is difficult using magnetic field. However, electric filed control of spins may provide a solution to this problem, as high frequency strong and localise electric filed can be easily achieved using STM tip.

Electric control of spins has been already investigated in multiferroic materials, which possess ferroelectric and ferromagnetic properties simultaneously. Similar magneto-electric coupling effect have been proposed in molecular magnet having antiferromagnetic spin triangular structures with lack of inversion symmetry.

Figure 1. Molecular structure of triangular [Fe₃O(O₂CPh)₆(py)₃]ClO₄⋅py Complex

Our work is focused to study multiferroicity and magneto-electric coupling in these molecular magnetic systems. Moreover, investigation of these isolated quantum spin structure may also help in deepen over understanding of quantum phenomenon such as tunnelling magnetization, chirality, and quantum decoherence.