Observation of insulating–insulating monoclinic structural transition in macro‐sized VO2 single crystals

VO₂ single crystals with unprecedented quality, exhibiting a first‐order metal–insulator transition (MIT) at 67.8 °C and an insulator –insulator transition (IIT) at ～49 °C, are grown using a self‐flux evaporation method. Using synchrotron‐based X‐ray microdiffraction analysis, it is shown that the IIT is related to a structural phase transition (SPT) from the monoclinic M2 phase to the M1 phase upon heating while the MIT occurs together with a SPT of M1 to the rutile R phase. All previous reports have shown that VO₂ exists in the M1 phase at room temperature in contrast to the M2 phase observed in this work. We suggest that internal strain inside single crystal VO₂ may generate the previously unobserved IIT and the unusual room temperature structure. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

Erratum: A life cycle framework for the investigation of environmentally benign nanoparticles and products [Phys. Status Solidi RRL 5, No. 9, 312–317 (2011)]

The name of a further author and contributor to this work, Roland Clift , has been added to the author list of the article in agreement with all co‐authors. It had been inadvertently omitted from the original version of the paper (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)