84 citations · 446 across the 11 of their papers we have counts for
4 papers · 1 filter
Spin transport in Heisenberg antiferromagnets
Michael Sentef, Marcus Kollar, Arno P. Kampf
We analyze spin transport in insulating antiferromagnets described by the XXZ Heisenberg model in two and three dimensions. Spin currents can be generated by a magnetic-field gradi…
Disorder-Induced Static Antiferromagnetism in Cuprate Superconductors
Brian M. Andersen, P. J. Hirschfeld, Arno P. Kampf +1
Using model calculations of a disordered d-wave superconductor with on-site Hubbard repulsion, we show how dopant disorder can stabilize novel states with antiferromagnetic order.…
The Effect of Disorder in an Orbitally Ordered Jahn-Teller Insulator
Sanjeev Kumar, Arno P. Kampf, Pinaki Majumdar
We study a two dimensional, two-band double-exchange model for electrons coupled to Jahn-Teller distortions in the presence of quenched disorder using a recently developed Mo…
Domain Formation and Orbital Ordering Transition in a Doped Jahn-Teller Insulator
Sanjeev Kumar, Arno P. Kampf, Pinaki Majumdar
The ground state of a double-exchange model for orbitally degenerate electrons with Jahn-Teller lattice coupling and weak disorder is found to be spatially inhomogeneous near…