106 citations · 159 across the 3 of their papers we have counts for
11 papers
Peak positions and shapes in neutron pair correlation functions from powders of highly anisotropic crystals
D. A. Dimitrov, H. Roder, A. R. Bishop
The effect of the powder average on the peak shapes and positions in neutron pair distribution functions of polycrystalline materials is examined. It is shown that for highly aniso…
Observation of two time scales in the ferromagnetic manganite La(1-x)Ca(x)MnO(3), x = 0.3
R. H. Heffner, J. E. Sonier, D. E. MacLaughlin +6
We report new zero-field muon spin relaxation and neutron spin echo measurements in ferromagnetic (FM) (La,Ca)MnO3 which taken together suggest two spatially separated regions in c…
Phonons from neutron powder diffraction
D. A. Dimitrov, D. Louca, H. Röder
The spherically averaged structure function $\soq$ obtained from pulsed neutron powder diffraction contains both elastic and inelastic scattering via an integral over energy. The F…
Persistent Current in the Ferromagnetic Kondo Lattice Model
Jun Zang, S. A. Trugman, A. R. Bishop +1
In this paper, we study the zero temperature persistent current in a ferromagnetic Kondo lattice model in the strong coupling limit. In this model, there are spontaneous spin textu…
Calculation of Densities of States and Spectral Functions by Chebyshev Recursion and Maximum Entropy
R. N. Silver, H. Roder
We present an efficient algorithm for calculating spectral properties of large sparse Hamiltonian matrices such as densities of states and spectral functions. The combination of Ch…
Theory of colossal magnetoresistance
Alan R. Bishop, Heinrich Röder
The history and recent developments in studying (colossal) magnetoresistance in perovskite manganese oxides is reviewed. We emphasize the growing evidence for strongly coupled spin…