Dr. Trinanjan Datta, Assistant Professor of Physics, published a paper entitled "Effects
of Magnetic Field, Anisotropy, and Biquadratic Interactions in Type-IIA fcc Antiferromagnets
Studied by Linear Spin-Wave Theory" in the February 2012 issue of Physical Review B . The work was done in collaboration with Dr. Dao-Xin Yao of Sun Yat-sen University,
Guangzhou, China. During the summer of 2011, Dr. Datta was invited to and visited
the physics department of Sun Yat-sen University to engage in collaborative research
work on quantum magnets. The result of that effort is this research article that predicts
not only the effect of external magnetic field and anisotropy in three dimensional
quantum FCC magnets, but also predicts the neutron scattering spectra and structure
factor for MnO and CoO. Such theoretical predictions on magnetic compounds guide material
scientists to fabricate novel magnetic devices for modern day technological purposes.
Dr. Datta gratefully acknowledges the invitation, kind hospitality, and research funding
support from Sun Yat-sen University and Fundamental Research Funds for the Central
Universities (China). He also thanks Augusta State University Katherine Reese Pamplin
College of Arts and Sciences for partial research funding support through a summer
Here is an abstract of the paper along with full text.
A picture from the publication is shown below. This picture shows the neutron scattering intensity for MnO (first and second panel) and CoO (third and fourth panel). The ellipticity in the neutron scattering intensity is a signature of the nearest and next-nearest neighbor magnetic interaction ratio. The picture is courtesy of Phys. Rev. B 85 , 054409 (2012).