Shape-imposed anisotropy in antiferromagnetic complex oxide nanostructures

Antiferromagnetic/ferromagnetic nanostructures for multidigit storage units

Shape anisotropy: tensor distance to anisotropy measure

Fractional anisotropy (FA), defined as the distance of a diffusion tensor from its closest isotropic tensor, has been extensively studied as quantitative anisotropy measure for diffusion tensor magnetic resonance images (DT-MRI). It has been used to reveal the white matter profile of brain images, as guiding feature for seeding and stopping in fiber tractography and for the diagnosis and assess...

Conductivity anisotropy in the antiferromagnetic state of iron pnictides.

Recent experiments on iron pnictides have uncovered a large in-plane resistivity anisotropy with a surprising result: The system conducts better in the antiferromagnetic x direction than in the ferromagnetic y direction. We address this problem by calculating the ratio of the Drude weight along the x and y directions, D(x)/D(y), for the mean-field Q=(π,0) magnetic phase diagram of a five-band m...

Shape anisotropy and Voids

Gauri R. Pradhan, ∗ Sagar A. Pandit, † Anil D. Gangal, and V. Sitaramam ‡ Department of Physics, University of Pune, Pune 411 007, India 2 Physical Research Laboratory, Ahmedabad 380 009, India Department of Biotechnology, University of Pune, Pune 411 007, India Abstract Numerical simulations on a 2-dimensional model system showed that voids are induced primarily due to shape anisotropy in bina...

Spin-phonon coupling in antiferromagnetic nickel oxide

E. Aytan, B. Debnath, F. Kargar, Y. Barlas, M. M. Lacerda, J. X. Li, R. K. Lake, J. Shi, and A. A. Balandin Nano-Device Laboratory (NDL), Department of Electrical and Computer Engineering, University of California, Riverside, California 92521, USA Phonon Optimized Engineered Materials (POEM) Center, Materials Science and Engineering Program, University of California, Riverside, California 92521...