A recent paper "On the equivalence of demagnetization tensors as discrete cell size approaches zero in three-dimensional space" has been selected as a featured article in the Journal of Applied Physics.

Congratulations to Dr. Hao Liang! Dr. Hao Liang’s recent paper, titled “Title of the Paper,” has been selected as a featured article in the Journal of Applied Physics.

The calculation of the demagnetization field is crucial in various disciplines, including magnetic resonance imaging and micromagnetics. A standard method involves discretizing the spatial domain into finite difference cells and using demagnetization tensors to compute the field. Different demagnetization tensors can result in contributions from adjacent cells that do not approach zero, nor do their differences, even as the cell size decreases. This work demonstrates that in three-dimensional space, a specific set of magnetization tensors produces the same total demagnetization field as the Cauchy principal value when the cell size approaches zero. Additionally, we provide a lower bound for the convergence speed, validated through numerical experiments.

Xinqiang Yan
Xinqiang Yan
Research Associate Professor of Radiology & Radiological Sciences and Electrical and Computer Engineering

My research pursuits revolve around advancing engineering solutions to address the technical challenges encountered in the field of MRI.