Fabrication of glass-ceramics containing spin-chain compound SrCuO{sub 2} and its high thermal conductivity

Terakado, Nobuaki; Watanabe, Kouki; Kawamata, Takayuki; Yokochi, Yuudai; Takahashi, Yoshihiro; Koike, Yoji; Fujiwara, Takumi

doi:10.1063/1.4917035

Title: Fabrication of glass-ceramics containing spin-chain compound SrCuO{sub 2} and its high thermal conductivity

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Abstract

High thermal conductivity materials are in great demand for heat-flow control and heat dissipation in electronic devices. In this study, we have produced a glass-ceramics that contains spin-chain compound SrCuO{sub 2} and have found that the glass-ceramics yields high thermal conductivity of ∼5 W K{sup −1} m{sup −1} even at room temperature. The glass-ceramics is fabricated through crystallization of inhomogeneous melt-quenched oxides made from SrCO{sub 3}, CuO, Li{sub 2}CO{sub 3}, Ga{sub 2}O{sub 3}, and Al{sub 2}O{sub 3}. Transmission electron microscopy and X-ray and electron diffraction reveal that SrCuO{sub 2} crystallites with a size of 100–200 nm are precipitated in the glass-ceramics. The highness of the thermal conductivity is attributable to two sources: one is elongation of phonon mean free path due to the crystallization of the inhomogeneous structure or structural ordering. The other is emergence of the heat carriers, spinons, in the SrCuO{sub 2}. This highly thermal conductive glass-ceramics is expected to be utilized as base materials for heat-flow control devices.

Authors:

Terakado, Nobuaki; Watanabe, Kouki; Kawamata, Takayuki; Yokochi, Yuudai; Takahashi, Yoshihiro; Koike, Yoji; Fujiwara, Takumi ^[1]

Department of Applied Physics, Tohoku University, 6-6-05 Aoba, Aoba-ku, Sendai 980-8579 (Japan)

Publication Date:: Mon Apr 06 00:00:00 EDT 2015

OSTI Identifier:: 22398841

Resource Type:: Journal Article

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 106; Journal Issue: 14; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM OXIDES; CERAMICS; COPPER OXIDES; CRYSTALLIZATION; ELECTRON DIFFRACTION; ENERGY LOSSES; GALLIUM OXIDES; GLASS; HEAT FLUX; HEAT TRANSFER; LITHIUM CARBONATES; MEAN FREE PATH; PHONONS; SPIN; STRONTIUM CARBONATES; THERMAL CONDUCTIVITY; THERMAL DIFFUSIVITY; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats


                    Terakado, Nobuaki, Watanabe, Kouki, Kawamata, Takayuki, Yokochi, Yuudai, Takahashi, Yoshihiro, Koike, Yoji, and Fujiwara, Takumi. Fabrication of glass-ceramics containing spin-chain compound SrCuO{sub 2} and its high thermal conductivity.  United States: N. p., 2015. 
        Web.  doi:10.1063/1.4917035.

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                    Terakado, Nobuaki, Watanabe, Kouki, Kawamata, Takayuki, Yokochi, Yuudai, Takahashi, Yoshihiro, Koike, Yoji, & Fujiwara, Takumi. Fabrication of glass-ceramics containing spin-chain compound SrCuO{sub 2} and its high thermal conductivity.  United States.  https://doi.org/10.1063/1.4917035

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                    Terakado, Nobuaki, Watanabe, Kouki, Kawamata, Takayuki, Yokochi, Yuudai, Takahashi, Yoshihiro, Koike, Yoji, and Fujiwara, Takumi. 2015.  
        "Fabrication of glass-ceramics containing spin-chain compound SrCuO{sub 2} and its high thermal conductivity".  United States.  https://doi.org/10.1063/1.4917035.

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@article{osti_22398841,

  title        = {Fabrication of glass-ceramics containing spin-chain compound SrCuO{sub 2} and its high thermal conductivity},

  author       = {Terakado, Nobuaki and Watanabe, Kouki and Kawamata, Takayuki and Yokochi, Yuudai and Takahashi, Yoshihiro and Koike, Yoji and Fujiwara, Takumi},

  abstractNote = {High thermal conductivity materials are in great demand for heat-flow control and heat dissipation in electronic devices. In this study, we have produced a glass-ceramics that contains spin-chain compound SrCuO{sub 2} and have found that the glass-ceramics yields high thermal conductivity of ∼5 W K{sup −1} m{sup −1} even at room temperature. The glass-ceramics is fabricated through crystallization of inhomogeneous melt-quenched oxides made from SrCO{sub 3}, CuO, Li{sub 2}CO{sub 3}, Ga{sub 2}O{sub 3}, and Al{sub 2}O{sub 3}. Transmission electron microscopy and X-ray and electron diffraction reveal that SrCuO{sub 2} crystallites with a size of 100–200 nm are precipitated in the glass-ceramics. The highness of the thermal conductivity is attributable to two sources: one is elongation of phonon mean free path due to the crystallization of the inhomogeneous structure or structural ordering. The other is emergence of the heat carriers, spinons, in the SrCuO{sub 2}. This highly thermal conductive glass-ceramics is expected to be utilized as base materials for heat-flow control devices.},

  doi          = {10.1063/1.4917035},

  url          = {https://www.osti.gov/biblio/22398841},
  journal      = {Applied Physics Letters},

  issn         = {0003-6951},

  number       = 14,

  volume       = 106,

  place        = {United States},

  year         = {Mon Apr 06 00:00:00 EDT 2015},

  month        = {Mon Apr 06 00:00:00 EDT 2015}

}

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