Largest Magnetic Anisotropy of a Single Molecule



 New research was published in the journal of the American Chemical Society. The research is focused on the Berlin synchrotron radiation source named BESSYII. Scientists have determined the largest magnetic anisotrophy of a single molecule ever measured experimentally.

The larger a molecule’s anisotrophy, the better the molecular nanomagnet that’s created. There’s huge potential for these nanomagnets, for example, in energy efficient data storage.

The scientist involved in the study are from the Max Planck Institute for Kohlenforschung (MPI KOFO), the Joint Lab EPR4 Energy of the Max Planck Institute for Chemical Energy Conversion (MPI CEC) and Berlin’s Helmholtz-Zentrum.

A group led by Josep Cornella from MPI KOFO is studying a unique molecule, bismuth complex.

Also, a team led by Frank Neese from MPI KOFO has predicted bismuth complex’s unique magnetic properties in theoretical studies. Prior to the study, all attempts to measure the magnetism of bismuth complex have failed. 

Scientists used THz electron paramagnetic spectroscopy. (THz-EPR). 

Tarek Al Said is from the HZB and is the first author of the study. He summarizes, “The results show in a fascinating way that our method can be used to determine high values of the magnetic anisotrophy with high accuracy. Through our cooperation with scientists from fundamental research, we are thereby making a great step forward in the understanding of this class of materials.” 

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