176 citations · 564 across the 22 of their papers we have counts for
7 papers · 1 filter
Effects of rare earth ion size on the stability of the coherent Jahn-Teller distortions in undoped perovskite manganites
T. F. Seman, K. H. Ahn, T. Lookman +3
We present a theoretical study on the relation between the size of the rare earth ions, often known as chemical pressure, and the stability of the coherent Jahn-Teller distortions…
Tin telluride: a weakly co-elastic metal
E. K. H. Salje, D. J. Safarik, K. A. Modic +13
We report resonant ultrasound spectroscopy (RUS), dilatometry/magnetostriction, magnetotransport, magnetization, specific heat, and Sn Mössbauer spectroscopy measurements o…
Atomistic studies of transformation pathways and energetics in plutonium
R. Gröger, T. Lookman, A. Saxena
One of the most challenging problems in understanding the structural phase transformations in Pu is to determine the energetically favored, continuous atomic pathways from one crys…
Geometric Control Over the Motion of Magnetic Domain Walls
N. A. Sinitsyn, V. V. Dobrovitski, S. Urazhdin +1
We propose a method, which enables precise control of magnetic patterns, relying only on the fundamental properties of the wire and the choice of the path in the controlled paramet…
Fermi Surface as a Driver for the Shape-Memory Effect in AuZn
R. D. McDonald, J. C. Lashley, J. Singleton +7
Martensites are materials that undergo diffusionless, solid-state transitions. The martensitic transition yields properties that depend on the history of the material and may allow…
Ferroelastic Dynamics and Strain Compatibility
T. Lookman, S. R. Shenoy, K. O. Rasmussen +2
We derive underdamped evolution equations for the order-parameter (OP) strains of a ferroelastic material undergoing a structural transition, using Lagrangian variations with Rayle…
Atomic scale lattice distortions and domain wall profiles
K. H. Ahn, T. Lookman, A. Saxena +1
We present an atomic scale theory of lattice distortions using strain related variables and their constraint equations. Our approach connects constrained {\it atomic length} scale…