Nano-block integration in the misfit layered Co oxides

I. Terasaki; Wataru Kobayashi; S. Ishiwata

doi:10.1109/ICT.2006.331370

Nano-block integration in the misfit layered Co oxides

I. Terasaki^*, Wataru Kobayashi, S. Ishiwata

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

The layered cobalt oxides having the CdI₂-type hexagonal CoO₂ layer exhibit good thermoelectric properties especially at high temperatures. Above all, the misfit layered Co oxides [A₂M _nO_2+n-d]_yCoO₂ are of particular interest, in which the CoO₂ layer and the NaCl-type tetragonal block-layer stack alternately along the crystallographic c axis. We prepared single crystals for various kinds of misfit layered Co oxide, and measured the thermoelectric properties to investigate how the block layer affects the electronic states of the CoO₂ layer. We found that the room-temperature thermopower monotonically increases with the misfit ratio y, which we associated with short-ranged spin-density-wave modulated by the interfacial stress between the layers.

Original language	English
Title of host publication	Proceedings ICT'06 - 25th International Conference on Thermoelectrics
Pages	283-286
Number of pages	4
DOIs	https://doi.org/10.1109/ICT.2006.331370
Publication status	Published - 2006
Event	ICT'06 - 25th International Conference on Thermoelectrics - Vienna, Austria Duration: 2006 Aug 6 → 2006 Aug 10

Other

Other	ICT'06 - 25th International Conference on Thermoelectrics
Country/Territory	Austria
City	Vienna
Period	06/8/6 → 06/8/10

ASJC Scopus subject areas

Engineering(all)

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10.1109/ICT.2006.331370

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@inproceedings{a87a0cc698384216a98b7d6c4755b59c,

title = "Nano-block integration in the misfit layered Co oxides",

abstract = "The layered cobalt oxides having the CdI2-type hexagonal CoO2 layer exhibit good thermoelectric properties especially at high temperatures. Above all, the misfit layered Co oxides [A2M nO2+n-d]yCoO2 are of particular interest, in which the CoO2 layer and the NaCl-type tetragonal block-layer stack alternately along the crystallographic c axis. We prepared single crystals for various kinds of misfit layered Co oxide, and measured the thermoelectric properties to investigate how the block layer affects the electronic states of the CoO2 layer. We found that the room-temperature thermopower monotonically increases with the misfit ratio y, which we associated with short-ranged spin-density-wave modulated by the interfacial stress between the layers.",

author = "I. Terasaki and Wataru Kobayashi and S. Ishiwata",

year = "2006",

doi = "10.1109/ICT.2006.331370",

language = "English",

isbn = "1424408105",

pages = "283--286",

booktitle = "Proceedings ICT'06 - 25th International Conference on Thermoelectrics",

note = "ICT'06 - 25th International Conference on Thermoelectrics ; Conference date: 06-08-2006 Through 10-08-2006",

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TY - GEN

T1 - Nano-block integration in the misfit layered Co oxides

AU - Terasaki, I.

AU - Kobayashi, Wataru

AU - Ishiwata, S.

PY - 2006

Y1 - 2006

N2 - The layered cobalt oxides having the CdI2-type hexagonal CoO2 layer exhibit good thermoelectric properties especially at high temperatures. Above all, the misfit layered Co oxides [A2M nO2+n-d]yCoO2 are of particular interest, in which the CoO2 layer and the NaCl-type tetragonal block-layer stack alternately along the crystallographic c axis. We prepared single crystals for various kinds of misfit layered Co oxide, and measured the thermoelectric properties to investigate how the block layer affects the electronic states of the CoO2 layer. We found that the room-temperature thermopower monotonically increases with the misfit ratio y, which we associated with short-ranged spin-density-wave modulated by the interfacial stress between the layers.

AB - The layered cobalt oxides having the CdI2-type hexagonal CoO2 layer exhibit good thermoelectric properties especially at high temperatures. Above all, the misfit layered Co oxides [A2M nO2+n-d]yCoO2 are of particular interest, in which the CoO2 layer and the NaCl-type tetragonal block-layer stack alternately along the crystallographic c axis. We prepared single crystals for various kinds of misfit layered Co oxide, and measured the thermoelectric properties to investigate how the block layer affects the electronic states of the CoO2 layer. We found that the room-temperature thermopower monotonically increases with the misfit ratio y, which we associated with short-ranged spin-density-wave modulated by the interfacial stress between the layers.

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DO - 10.1109/ICT.2006.331370

M3 - Conference contribution

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SN - 9781424408108

SP - 283

EP - 286

BT - Proceedings ICT'06 - 25th International Conference on Thermoelectrics

T2 - ICT'06 - 25th International Conference on Thermoelectrics

Y2 - 6 August 2006 through 10 August 2006

ER -

Nano-block integration in the misfit layered Co oxides

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