Divacancy superstructures in thermoelectric calcium-doped sodium cobaltate. / Porter, Dan; Roger, M.; Gutmann, M. J.; Sivaperumal, Uthay; Prabhakaran, D.; Boothroyd, A. T.; Pandiyan, Manoj; Goff, Jon.

In: Physical Review B, Vol. 90, 054101, 04.08.2014.

Research output: Contribution to journalArticlepeer-review

Published

Standard

Divacancy superstructures in thermoelectric calcium-doped sodium cobaltate. / Porter, Dan; Roger, M.; Gutmann, M. J.; Sivaperumal, Uthay; Prabhakaran, D.; Boothroyd, A. T.; Pandiyan, Manoj; Goff, Jon.

In: Physical Review B, Vol. 90, 054101, 04.08.2014.

Research output: Contribution to journalArticlepeer-review

Harvard

APA

Vancouver

Porter D, Roger M, Gutmann MJ, Sivaperumal U, Prabhakaran D, Boothroyd AT et al. Divacancy superstructures in thermoelectric calcium-doped sodium cobaltate. Physical Review B. 2014 Aug 4;90. 054101. https://doi.org/10.1103/PhysRevB.90.054101

Author

Porter, Dan ; Roger, M. ; Gutmann, M. J. ; Sivaperumal, Uthay ; Prabhakaran, D. ; Boothroyd, A. T. ; Pandiyan, Manoj ; Goff, Jon. / Divacancy superstructures in thermoelectric calcium-doped sodium cobaltate. In: Physical Review B. 2014 ; Vol. 90.

BibTeX

@article{ae8071f5ccfe4f3db5f158727af723e3,
title = "Divacancy superstructures in thermoelectric calcium-doped sodium cobaltate",
abstract = "We have grown single crystals of NaxCayCoO2 and determined their superstructures as a function of composition using neutron and x-ray diffraction. Inclusion of Ca2+ stabilizes a single superstructure across a wide range of temperatures and concentrations. The superstructure in the Na+ layers is based on arrays of divacancy clusters with Ca2+ ions occupying the central site, and it has an ideal concentration Na4/7Ca1/7CoO2. Previous measurements of the thermoelectric properties on this system are discussed in light of this superstructure. Na4/7Ca1/7CoO2 corresponds to the maximum in thermoelectric performance of this system.",
author = "Dan Porter and M. Roger and Gutmann, {M. J.} and Uthay Sivaperumal and D. Prabhakaran and Boothroyd, {A. T.} and Manoj Pandiyan and Jon Goff",
year = "2014",
month = aug,
day = "4",
doi = "10.1103/PhysRevB.90.054101",
language = "English",
volume = "90",
journal = "Physical Review B",
issn = "1098-0121",
publisher = "American Physical Society",

}

RIS

TY - JOUR

T1 - Divacancy superstructures in thermoelectric calcium-doped sodium cobaltate

AU - Porter, Dan

AU - Roger, M.

AU - Gutmann, M. J.

AU - Sivaperumal, Uthay

AU - Prabhakaran, D.

AU - Boothroyd, A. T.

AU - Pandiyan, Manoj

AU - Goff, Jon

PY - 2014/8/4

Y1 - 2014/8/4

N2 - We have grown single crystals of NaxCayCoO2 and determined their superstructures as a function of composition using neutron and x-ray diffraction. Inclusion of Ca2+ stabilizes a single superstructure across a wide range of temperatures and concentrations. The superstructure in the Na+ layers is based on arrays of divacancy clusters with Ca2+ ions occupying the central site, and it has an ideal concentration Na4/7Ca1/7CoO2. Previous measurements of the thermoelectric properties on this system are discussed in light of this superstructure. Na4/7Ca1/7CoO2 corresponds to the maximum in thermoelectric performance of this system.

AB - We have grown single crystals of NaxCayCoO2 and determined their superstructures as a function of composition using neutron and x-ray diffraction. Inclusion of Ca2+ stabilizes a single superstructure across a wide range of temperatures and concentrations. The superstructure in the Na+ layers is based on arrays of divacancy clusters with Ca2+ ions occupying the central site, and it has an ideal concentration Na4/7Ca1/7CoO2. Previous measurements of the thermoelectric properties on this system are discussed in light of this superstructure. Na4/7Ca1/7CoO2 corresponds to the maximum in thermoelectric performance of this system.

U2 - 10.1103/PhysRevB.90.054101

DO - 10.1103/PhysRevB.90.054101

M3 - Article

VL - 90

JO - Physical Review B

JF - Physical Review B

SN - 1098-0121

M1 - 054101

ER -