Soft Manifold Dynamics Behind Negative Thermal Expansion (2008)
Schlesinger, Z., Rosen, J. A., Hancock, J. N., Ramirez, A. P.
Minimal models are developed to examine the origin of large negative thermal expansion (NTE) in under-constrained systems. The dynamics of these models reveals how underconstraint can organize a...
Quasi-zero Dimensional CuB2O4: A case study for resonant inelastic X-ray scattering (2008)
Hancock, J. N., Chabot-Couture, G., Li, Y., Petrakovskii, G., Ishii, K., Jarrige, I., ...
We explore the general phenomenology of resonant inelastic scattering (RIXS) using CuB2O4, a network of CuO4 plaquettes electronically isolated by B+3 ions. Spectra show a small number of...
Incident-energy and polarization dependent RIXS study of La2CuO4 (2006)
Lu, L., Hancock, J. N., Chabot-Couture, G., Vajk, O. P., Yu, G., Ishii, K., ...
We present a detailed Cu K-edge resonant inelastic X-ray scattering (RIXS) study of the Mott insulator La2CuO4 in the 1-7 eV energy transfer range. As initially found for the high-temperature...
Charge-Transfer Excitations in the Model Superconductor HgBa$_2$CuO$_{\bf 4+\delta}$ (2005)
Lu, L., Zhao, X., Chabot-Couture, G., Hancock, J. N., Kaneko, N., Vajk, O. P., ...
We report a Cu $K$-edge resonant inelastic x-ray scattering (RIXS) study of charge-transfer excitations in the 2-8 eV range in the structurally simple compound HgBa$_2$CuO$_{4+\delta}$ at optimal...