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Electrochemistry and Staging in La2CuO4+d

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Title

Electrochemistry and Staging in La2CuO4+d

Author(s)

Blakeslee, P.
Birgeneau, Robert J.
Chou, F. C.
Christianson, Rebecca J.
Kastner, M. A.
Lee, Y. S.

Description

Measurements are reported of the time dependence of the current during electrochemical oxidation and reduction at a fixed voltage of single crystals and ceramic samples of La2CuO4+d. Staging peaks in neutron measurements of the single crystals together with the electrochemical measurements and magnetization measurements confirm that stage n=6 corresponds to d=0.055 +/- 0.05, the high-d side of the oxygen-rich–oxygen-poor miscibility gap. Furthermore, stage n=4 occurs at a value of d consistent with d { n^(-1). For ceramic samples it is shown that two different superconducting compounds are formed depending on the oxidation voltage used.

Date Published

2018-03-26 15:16:35

Files

  • Download Christianson_Electrochemistry.pdf

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In Copyright - Educational Use Permitted

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Wikidata subjects
electrochemistry

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Olin College of Engineering

An undergraduate engineering institution exploring innovative approaches to engineering education since its founding in 1997.

1000 Olin Way
Needham, MA 02492
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