Retraction: “Sub-kT/q subthreshold slope p-metal-oxide-semiconductor field-effect transistors with single-grained Pb(Zr,Ti)O₃ featuring a highly reliable negative capacitance” [Appl. Phys. Lett. 108, 103504 (2016)]

The authors wish to retract the referenced article due to duplication of figures and significant overlap with other publications by the authors^1–3 and because of concerns about the accuracy of the description of the devices and materials from which the reported results were obtained.⁴ The authors recognize that these represent serious errors and sincerely apologize for any inconvenience they may have caused.