Author Archives: ymiyalab

2024

2024


Papers

Invited talks

Europian Materials Research Society 2024 Spring Meeting (May 27-31, Strasbourg)

  • “Fe-based Half Heusler Thermoelectric Materials”
    Yuzuru Miyazaki (Invited lecture)

Archive to 29 February, 2024

Archive to29 February, 2024


  • A paper has been published in Advanced Functional Materials. (February, 2024)
  • A paper has been published in ACS Applied Energy Materials. (February, 2024)
  • A paper has been published in Journal of Materiomics. (January, 2024)
  • A paper has been published in Advanced Materials. (January, 2024)
  • Update the Activities page.(December, 2023)
  • A paper has been published in ACS Applied Energy Materials. (December, 2023)
  • Update the Activities page. (November, 2023)
  • A paper has been published in Chemical Physics Reviews. (October, 2023)
  • A paper has been published in Journal of Materials Chemistry A. (October, 2023)
  • Update the People page. (October, 2023)
  • Gakuto KANNO, M1 degree of Miyazaki lab., won the Award for Outstanding Poster Presentation.(September, 2023)
  • A paper has been published in Journal of Materials Chemistry A. (September, 2023)
  • A paper has been published in Journal of Materials Chemistry A. (September, 2023)
  • The introduction video of Miyazaki laboratory has been updated. (July, 2023)
  • Prof. Miyazaki has been elected one of the Board Member of the International Thermoelectric Society (ITS). (June, 2023)
  • Master’s degree students will join the poster session of ECT2023. (June, 2023)
  • Update the People page. (January, 2022)
  • Update the Activities page. (December, 2021)
  • Update the People page.(November, 2021)
  • New article were published in ACS Applied Energy Materials. (October, 2021)
  • Update the People page. (October, 2021)
  • Update the Activities page. (September, 2021)
  • A paper has been published in Acta Materialia. (May, 2021)
  • A paper has been published in Acta Crystallographica section B. (May, 2021)
  • A paper has been published in ACS Applied Energy Materials. (May, 2021)
  • Update the People page. (April, 2021)
  • A paper has been published in Materials Today Energy. (March, 2021)
  • Update the People page. (April, 2021)
  • A paper has been published in Chemistry of Materials. (March, 2021)
  • Update the People page. (March, 2021)
  • A book chapter has been published in Thermoelectric Energy Conversion. (January, 2021)
  • A paper has been published in Advanced Functional Materials. (January, 2021)
  • A paper has been published in ACS Applied Materials & Interfaces. (December, 2020)
  • A paper has been published in Journal of Materiomics. (December, 2020)
  • A paper has been published in Journal of Alloys and Compounds. (December, 2020)
  • A paper has been published in Journal of Materials Chemistry C. (December, 2020)
  • Update the People page. (November, 2020)
  • Update the Activities page. (October, 2020)
  • Update the Research page. (October, 2020)
  • Update the Activities page. (July, 2020)
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  • Update the Activities page. (June, 2020)
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  • Update the Activities page. (November, 2019)
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  • Update the Activities page. (November, 2018)
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  • Update the People page. (October, 2017)
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  • Update the Activities page. (December, 2016)
  • Update the People page. (November, 2016)
  • Update the Activities page. (November, 2016)
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  • Update the People page. (April, 2016)
  • Update the Activities page. (February, 2016)
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  • Update the Activities page. (November, 2015)
  • Update the Activities page. (November, 2015)
  • Update the People page. (November, 2015)
  • Update the Activities page. (October, 2015)
  • Update the People page. (October, 2015)
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  • Update the People page. (August, 2015)
  • Update the People page. (July, 2015)
  • Shuma Naito gets the Poster Award in 34th Annual International Conference on Thermoelectrics 2015. (July, 2015)
  • Update the People page. (July, 2015)
  • Update the People page. (July, 2015)
  • Update the People page. (June, 2015)
  • Update the Activities page. (June, 2015)
  • Update the Activities page. (June, 2015)
  • Update the People page. (April, 2015)
  • Update the People page. (December, 2014)
  • Update the Link page. (November, 2014)
  • Update the Contact page. (October, 2014)
  • Update the Activities page. (October, 2014)
  • Update the Activities page. (September, 2014)
  • Update the People page. (September, 2014)
  • Update the Activities page. (August, 2014)
  • Update the Activities page. (July, 2014)
  • Update the Activities page. (July, 2014)
  • Update the People page. (June, 2014)
  • Update the Activities page. (June, 2014)
  • Update the Research page. (May, 2014)
  • Update the Activities page. (April, 2014)
  • Update the Research page. (April, 2014)
  • Update the People page. (April, 2014)
  • Update the Activities page. (March, 2014)
  • New articles were published in Journal of Electronic Materials. (October, 2013)
  • Masataka Kubouchi gets the Poster Award in Tohoku University’s Chemistry Summer School 2013. (September, 2013)
  • New Web page created. (September, 2013)

2023

2023


Awards

Papers

Invited talks

The 15th Pacific Rim Conference of Ceramic Societies (PACRIM15) & The 13th Int’l Conference on High-Performance Ceramics (CICC-13) (5-9 Nobember 2023, Shenzhen)
  • “Lattice Defect Engineering to Develop Highly-efficient Thermoelectric Single Crystals”
    Kei Hayashi (Invited lecturer)
International Workshop Thermoelectric Materials: from materials chemistry and physics to devices (IWT2023)(April 12-14, 2023, Caen)
  • Incommensurate Nowotny Chimney-ladder Phases – Potential Thermoelectric Materials
    Y. Miyazaki, N. S. Chauhan, T. Kurosawa, and K. Hayashi (Invited lecture)
8th Annual Conference of Analytix-2023 (17-19 May 2023, Osaka)
  • “Superspace Approach to the Incommensurate Crystal Structure of Higher Manganese Silicide-Based Thermoelectric Materials”
    Y. Miyazaki (Invited lecture)

Conferences

The 15th Pacific Rim Conference of Ceramic Societies (PACRIM15) & The 13th Int’l Conference on High-Performance Ceramics (CICC-13) (5-9 Nobember 2023, Shenzhen)
  • “Enhancing Thermoelectric Properties of P-type Mg2Sn Single Crystals through Li/Si Co-Doping and Introduction of Lattice Defects”
    Z. Huang, K. Hayashi, Y. Miyazaki (Oral)
  • “High Temperature X-ray Diffraction Study on Incommensurate Composite Crystal (Mn, Fe, V)Siγ
    T. Chiba, K. Hayashi, Y. Miyazaki (Oral)
The 19th European Conference on Thermoelectrics (ECT2023) (17-21 September 2023, Prague)
  • “Single‐phase synthesis and thermoelectric properties of nowotny chimney‐ladder FeGeγ
    T. Kurosawa, K. Hayashi, Y. Miyazaki (Poster)
  • “Preparation and thermoelectric properties of nonstoichiometric full‐Heusler Mn2+xV1-xAl alloys”
    G. Kanno, K. Hayashi, Z. Huang, H. Li, Y. Miyazaki (Poster)
  • “Analysis of crystal structure and Thermoelectric properties of Sr‐substituted [Ca2CoO3]pCoO2
    Y. Shimizu, K. Hayashi, Y. Miyazaki (Oral)
The 39th Annual International conference on Thermoelectrics (ICT2023) (21-25 June 2023, Seatle)
  • Advancing the thermoelectric performance of single crystals: a case study of p-type Mg2Sn through lattice defect engineering”
    K. Hayashi, Z. Huang, W. Saito, J. Pei, J.F. Li, Y. Miyazaki (Oral)
  • “Boron doping in n-type and p-type Mg2Sn on the generation of lattice defects leading to improved thermoelectric properties”
    Z. Huang, K. Hayashi, W. Saito, H. Takeuchi, Y. Miyazaki (Oral)

2022

2022


Awards

Papers

Invited talks

SIPS2022 Mizutani International Symposium (27-30 November 2022, Phuket)
  • “Higher Manganese Silicides: Incommensurability and Thermoelectric Properties”
    Yuzuru Miyazaki (Invited lecture)

Conferences

33rd International Photovoltaic Science and Engineering Conference (PVSEC-33) (13-17 November 2022, Nagoya)
  • “Carrier density control of CrSi2 partially substituted with Mn”
    K. Tasaki, K. Hayashi, and Y. Miyazaki (Poster)
  • “Preparation of (Mn, Fe, V)Siγ Single Crystals for Infrared Absorption Optoelectronics”
    T. Chiba, K. Hayashi, and Y. Miyazaki (Poster)
18th European Conference on Thermoelectrics (ECT’22) (14-16 Septemper 2022, Barcelona)
  • “Reduction of Thermal Conductivity of Mg2Sn Single Crystal via Lattice-Defect Engineering through Chemical-Pressure Control”
    K. Hayashi, W. Saito, Z. Huang, K. Sugimoto, K. Ohoyama, N. Happo, M. Harada, K. Oikawa, Y. Inamura, K. Hayashi, T. Miyazaki, and Y. Miyazaki (Oral)
  • “Realising enhanced thermoelectric performance in partially substituted higher manganese silicides crystals”
    N. S. Chauhan, I. Ono, K. Hayashi, and Y. Miyazaki (Oral)
  • “Point Defects and Thermoelectric Properties of Melt‐grown Mg2Ge Single Crystals”
    H. Takeuchi, Z. Huang, K. Hayashi, and Y. Miyazaki (Poster)
The 6th Asia-Pacific Conference on Semiconducting Silicides and Related Materials, 2022 (APAC-Silicide 2022) (30 July – 1 August 2022, Online)
  • “Partially compensated (Ru, V) co-doped higher manganese silicide single crystals”
    N. S. Chauhan, I. Ono, K. Hayashi, and Y. Miyazaki (Oral)
Virtual Conference on Thermoelectrics 2022 (VCT 202) (20-22 July 2022, Online)
  • “Preparation and High-Temperature Thermoelectric Properties of Textured Cobaltate Ceramics”
    Y. Shimizu, K. Hayashi, and Y. Miyazaki (Poster)

2021

2021


Papers

Invited talks

Materials Research Meeting 2021 (MRM2021) (13-16 December 2021, Yokohama)
  • “Crystal Structure and Thermoelectric Properties of Incommensurate Composite Crystal MnSiγ (γ~1.7)”
    Y. Miyazaki, Hiroki Nagai, Haruki Hamada, Yuta Kikuchi, Kei Hayashi (Invited lecture)
1st Japan France Virtual Workshop on thermoelectrics (VWT2021) (27-30 September 2021, online)
  • “Point defect engineering enhances thermoelectric performance of Mg2Si and Mg2Sn single crystals,”
    K. Hayashi (Invited lecture)

Conferences

Materials Research Meeting 2021 (MRM2021) (13-16 December 2021, Yokohama)
  • “Crystal structure, microstructure and thermoelectric properties of melt-grown β-Zn4Sb3
    K. Hayashi, S. Yoshioka, T. Chiba, Y. Miyazaki (Oral)

Thesis

Doctor
  • “Crystal Structure, Electric Structure, and Thermoelectric Properties of Half-Heusler VFeSb-Based Compounds”
  • “Electronic Structure and Thermoelectric Properties of P-type Full-Heusler Alloys”

2020

2020


Awards

Papers

Books

Invited talks

The 5th Asian Conference on Thermoelectrics (ACT5) &The 6th Southeast Asia Conference on Thermoelectrics (SACT6) (17, 18 December 2020, online)
  • “Understanding Detailed Crystal Structures for Improving Thermoelectric Properties of Silicide-based Materials”
    Y. Miyazaki, H. Nagai, H. Nkasawa, W. Saito, M. Kubouchi, T. Takamatsu and K. Hayashi (Invited lecture)

Conferences

The 5th Asian Conference on Thermoelectrics (ACT5) &The 6th Southeast Asia Conference on Thermoelectrics (SACT6) (17 December 2020, online)
  • “Local Structure and Thermoelectric Properties of Boron-Doped Mg2Si and Mg2Sn Single Crystals”
    K. Hayashi, W. Saito, K. Sugimoto, S. Uchi, Y. Kanazawa, Y. Fukumoto, T. Yamamoto, K. Ohyama, K.i Hayashi, N. Happo, M. Hatada, K. Oikawa, Y. Inamura and Y. Miyazaki (Oral)
  • “Effect of disorder on electronic structure and thermoelectrical properties of inverse full-Heusler Mn2CoAl alloys”
    H. Li,K. Hayashi,Y. Nagashima, S. Yoshioka, J. Dong, J. Li and Y. Miyazaki (Oral)
  • “Influences of Mg vacancy and Ga atoms in p-type Mg2Sn1-xGax
    Z. Huang, K. Hayashi, W. Saito, J. Dong, J. Li and Y. Miyazaki (Oral)
  • “Preparation, crystal structure and thermoelectric performance of p-type quaternary half-Heusler Ti(Fe0.5+xNi0.5-x)Sb compounds”
    Z. Liu,Y. Huang, K. Hayashi and Y. Miyazaki (Poster)
  • “Design and evaluation of the C40-type silicide thermoelectric modules”
    M. Ryu, T. Takamatsu, K. Hayashi and Y. Miyazaki (Poster)
The 2nd International Conference on Metals and Alloys (CMA 2020)
(6-9 December 2020, online)
  • “Effects of V-substitution on Thermoelectric Properties of Pseudogap Intermetallic TiNiSi Compound”
    Y. Huang,H. Nagai, K. Hayashi,Y. Miyazaki (Oral)
The 2020 Magnetism and Magnetic Materials Virtual Conference(MMM2020)
(2-6 November 2020, online)
  • “Preparation and Thermoelectric Properties of Mn2CoAl Inverse Full-Heusler Alloy”
    H. Li,K. Hayashi,Y. Nagashima, Y. Miyazaki (Poster)
Virtual Conference on Thermoelectrics (21-23 July 2020, online)
  • “Enhancing Thermoelectric Performance of Mg2Sn Single Crystals via Point Defect Engineering and Sb-doping”
    W. Saito, K. Hayashi, Y. Miyazaki (Oral)
  • “Enhanced Thermoelectric Performance in N-type Half-Heulser VFeSb Compounds with Cobalt-substitution”
    Y. Huang, K. Hayashi, Y. Miyazaki (Oral)

Thesis

Master
  • “Preparation, CrystalStructure andThermoelectricProperties of QuaternaryTi(Fe,Ni)Sb-based Half-Heusler Compounds”
  • “Fabrication and evaluation of the C40-type silicide thermoelectric modules”
Doctor
  • “Enhancing Thermoelectric Efficiency of Mg2Sn Single Crystals via Point Defect Engineering”

2019

2019


Awards

  • Yi Huang 38th International and 4th Asian Conference on Thermoelectrics (ICT & ACT 2019) ICT2019 Poster Award (July, 2019)
    “Preparation, crystal structure and thermoelectric properties of Ru substituted half Heusler type VFeSb”
  • Our project have been approved bythe 2019 Tohoku University-Tsinghua University Joint Research Fund (April, 2019)

Papers

Invited talks

17th European Conference on Thermoelectrics (ECT2019)(23-25 September 2019, Cyprus)
  • “Understanding Detailed Crystal Structures to Further Improve Thermoelectric Properties of Silicide-based Materials”
    Y. Miyazaki, H. Nagai, W. Saito, K. Hayashi (Invited lecture)
5th Asia-Pacific conference on semiconducting silicides and related materials (APAC-SILICIDE 2019) (20-23 July 2019, Miyazaki)
  • “Recent Progress in Silicide Thermoelectric Materials”
    Y. Miyazaki (Invited lecture)
European Materials Research Society (E-MRS) 2019 Spring Meeting (27-31 May 2019, Nice)
  • “Domain Separation in Manganese Siliside Thermoelectric Material”
    Y. Miyazaki, H. Nagai, Y. Kawasaki, K. Hayashi, K. Yubuta (Invited lecture)

Conferences

Materials Research Meeting 2019 (10-14 December 2019, Yokohama)
  • “Ru-substitution effects on the crystal and electronic structures, and thermoelectric poperties of half-Heusler type VFeSb compounds”
    Y. Huang, K. Hayashi, Y. Miyazaki (Oral)
  • “Determination of dopant position of thermoelectric material B-doped Mg2Si by white neutron holography”
    K. Sugimoto, S. Uechi, Y. Kanazawa, Y. Fukumoto, T. Yamamoto, K. Ohoyama, K. Hayashi, N. Happo, M. Harada, K. Oikawa, Y. Inamura, K. Hayashi, W. Saito, Y. Miyazaki (Poster)
14th International Conference on the Structure of Non-Crystalline Materials (NCM14) (3-8 November 2019, Kobe)
  • “Thermoelectric Properties and Local Structure of Boron-Doped Mg2Si and Mg2Sn”
    Kei Hayashi, Wataru Saito, Yuzuru Miyazaki, Kazuya Sugimoto, Syouichi Uechi, Yuki Kanazawa, Yohei Fukumoto, Takayoshi Yamamoto, Kenji Ohoyama, Kouichi Hayashi, Naohisa Happo, Masahide Harada, Kenichi Oikawa, Yasuhiro Inamura (Oral)
5th Asia-Pacific conference on semiconducting silicides and related materials (APAC-SILICIDE 2019) (20-23 July 2019, Miyazaki)
  • “Cross-sectional characterization of Mg2Si -Ni interface compacted by SPS method at 800°C”
    T. Ishii, H. Sugawara, M. Tokuda, H. Sato, T. Hanajiri, H. Shimoshige, S. Kurosu, K. Hayashi, I. Ando, W. Saito, and Y. Miyazaki (Poster)
38th International and 4th Asian Conference on Thermoelectrics (ICT & ACT 2019) (30 June – 5 July 2019, Gyeongju)
  • “Preparation and Thermoelectric Properties of Mn2VAl Full Heusler Alloys with Different Order Degree”
    H. Li, K. Hayashi, Y. Miyazaki (Oral)
  • “Crystal and electronic structures of the half Heusler type VFeSb compounds”
    Y. Huang, S. Maki, K. Hayashi, Y. Miyazaki (Oral)
  • “Investigation on lattice defects in Mg2Sn single crystals prepared under different Ar partial pressure”
    W. Saito, K. Hayashi, Y. Miyazaki (Oral)
  • “Computer simulation of thermoelectric properties for tilted multilayer devices based on the off diagonal thermoelectric effect”
    D. Sakuraba, N. Kodaira, K. Hayashi, Y. Miyazaki (Poster)
  • “Thermoelectric properties and local structure of B doped Mg2Si single crystal”
    K. Hayashi, W. Saito, Y. Miyazaki, K. Sugimoto, S. Uechi, Y. Kanazawa, Y. Fukumoto,
    T. Yamamoto, K. Ohyama, K. Hayashi, N. Happo, M. Harada, K. Oikawa, Y. Inamura (Poster)
  • “Thermoelectric Properties of Strontium Titanium Oxyhydrides”
    D. Fukutome, T. Takamatsu, K. Hayashi, Y. Miyazaki (Poster)
  • “Preparation, crystal structure and thermoelectric properties of Ru substituted half Heusler type VFeSb”
    Y. Huang, K. Hayashi, Y. Miyazaki (Poster)
  • “Crystal structure evolution of Zn4Sb3 during melt grown process”
    S. Yoshioka, K. Hayashi, Y. Miyazaki (Poster)

Thesis

Master
  • “Thermoelectric Properties of C40-Type Mn-Cr-Si-Al Compounds”
  • “Simulation of Power Generation and Module Fabrication for Tilted Multilayer Thermoelectric Devices”
  • “Crystal Structure and ThermoelectricProperties of Higher ManganeseSilicides Cosubstituted with V and Ge”
  • “Preparation and Characterization of(Mn,Fe)Siγ Thin Films Grown by PulsedLaser Deposition Method”
Doctor
  • “”