(NH4)2Te2WO8: A New Polar Oxide with Second-Harmonic

Q/A: Harry Atwater on Photovoltaics for the Earth and Beyond. Professor Harry Atwater is the Editor-in-Chief of ACS Photonics and a Howard Hughes Prof...
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Chem. Mater. 2008, 20, 3542

Additions and Corrections 2007, Volume 19 Jun-Ho Kim, Jaewook Baek, and P. Shiv Halasyamani*: (NH4)2Te2WO8: A New Polar Oxide with Second-Harmonic Generating, Ferroelectric, and Pyroelectric Properties.

Please note the following correction to this article (Chem. Mater. 2007, 19, 5637-5641): We recently published a paper that stated that (NH4)2Te2WO8 is ferroelectric. After collecting polarization data at variable frequencies, we believe the material is not ferroelectric; that is, the polarity cannot be reversed in the presence of an external electric field. The second-harmonic generating and pyroelectric data presented in the original article are accurate. The variable frequency ferroelectric data are in Supporting Information. We regret the error. Supporting Information Available: Variable frequency ferroelectric hysteresis measurements on (NH4)2Te2WO8 (PDF). This material is available via the Internet at http://pubs.acs.org. CM801014U 10.1021/cm801014u Published on Web 04/26/2008