Mesoscopic Phase Coherence in a Quantum Spin Fluid (2008)
Xu, Guangyong, Broholm, C., Soh, Yeong-Ah, Aeppli, G., DiTusa, J. F., Chen, Ying, ...
Mesoscopic quantum phase coherence is important because it improves the prospects for handling quantum degrees of freedom in technology. Here we show that the development of such coherence can be...
Atomic-scale images of charge ordering in a mixed-valence manganite (2002)
Renner, Ch., Aeppli, G., Kim, B-G., Soh, Yeong-Ah, Cheong, S. -W.
Transition-metal perovskite oxides exhibit a wide range of extraordinary but imperfectly understood phenomena. Charge, spin, orbital, and lattice degrees of freedom all undergo order-disorder...
X-ray induced persistent photoconductivity in Si-doped Al$_{0.35}$Ga$_{0.65}$As (2000)
Soh, Yeong-Ah, Aeppli, G., Zimmermann, Frank M., Isaacs, E. D., Frenkel, Anatoly I.
We demonstrate that X-ray irradiation can be used to induce an insulator-metal transition in Si-doped Al$_{0.35}$Ga$_{0.65}$As, a semiconductor with {\it DX} centers. The excitation mechanism of the...
Mesoscale magnetism at the grain boundaries in colossal magnetoresistive films (2000)
Soh, Yeong-Ah, Aeppli, G., Mathur, N. D., Blamire, M. G.
We report the discovery of mesoscale regions with distinctive magnetic properties in epitaxial La$_{1-x}$Sr$_{x}$MnO$_{3}$ films which exhibit tunneling-like magnetoresistance across grain...