Nanoscale imaging of the electronic and structural transitions in vanadium dioxide.
- X-Ray Science Division
We investigate the electronic and structural changes at the nanoscale in vanadium dioxide (VO{sub 2}) in the vicinity of its thermally driven phase transition. Both electronic and structural changes exhibit phase coexistence leading to percolation. In addition, we observe a dichotomy between the local electronic and structural transitions. Nanoscale x-ray diffraction reveals local, nonmonotonic switching of the lattice structure, a phenomenon that is not seen in the electronic insulator-to-metal transition mapped by near-field infrared microscopy.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 1014006
- Report Number(s):
- ANL/CNM/JA-70013; TRN: US201111%%24
- Journal Information:
- Phys. Rev. B, Vol. 83, Issue Apr. 13, 2011
- Country of Publication:
- United States
- Language:
- ENGLISH
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