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Structurally related to the iron-based superconductors, two new intercalated iron chalcogenides (H 0.5NH 3)Fe 2Ch 2 where Ch = S, Se have been prepared. By
Daniel Phelan, Efrain E. Rodriguez, J Gao, Y Bing, Z.-G. Ye, Qingzhen Huang, Jinsheng Wen, Guangyong Xu, C. Stock, M Matsuura, Peter M. Gehring
We revisit the phase diagram of the relaxor ferroelectric PMN-xPT using neutron powder diffraction to test suggestions that residual oxygen vacancies and/or