JP7276856B2 - 熱電変換素子及び熱電変換デバイス - Google Patents
熱電変換素子及び熱電変換デバイス Download PDFInfo
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- JP7276856B2 JP7276856B2 JP2019527731A JP2019527731A JP7276856B2 JP 7276856 B2 JP7276856 B2 JP 7276856B2 JP 2019527731 A JP2019527731 A JP 2019527731A JP 2019527731 A JP2019527731 A JP 2019527731A JP 7276856 B2 JP7276856 B2 JP 7276856B2
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- 238000006243 chemical reaction Methods 0.000 title claims description 112
- 230000005422 Nernst effect Effects 0.000 claims description 32
- 230000002547 anomalous effect Effects 0.000 claims description 28
- 239000000758 substrate Substances 0.000 claims description 12
- 239000000696 magnetic material Substances 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 7
- 230000005307 ferromagnetism Effects 0.000 claims 1
- 230000005291 magnetic effect Effects 0.000 description 29
- 230000005415 magnetization Effects 0.000 description 20
- 239000002245 particle Substances 0.000 description 16
- 238000004364 calculation method Methods 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 230000005355 Hall effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000005678 Seebeck effect Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
- 235000021028 berry Nutrition 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003775 Density Functional Theory Methods 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 230000005290 antiferromagnetic effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- -1 CoCrSb Inorganic materials 0.000 description 1
- 229910019353 CoMnSb Inorganic materials 0.000 description 1
- 229910019107 CoTiSb Inorganic materials 0.000 description 1
- 229910019379 CoVSb Inorganic materials 0.000 description 1
- 229910016797 Mn3Sn Inorganic materials 0.000 description 1
- 229910016583 MnAl Inorganic materials 0.000 description 1
- 241000053208 Porcellio laevis Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000002885 antiferromagnetic material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 231100001231 less toxic Toxicity 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N15/00—Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using the Nernst-Ettingshausen effect
- H10N15/20—Thermomagnetic devices using thermal change of the magnetic permeability, e.g. working above and below the Curie point
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N15/00—Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using the Nernst-Ettingshausen effect
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/10—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects
- H10N10/17—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects operating with only the Peltier or Seebeck effects characterised by the structure or configuration of the cell or thermocouple forming the device
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
- H10N10/81—Structural details of the junction
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- Hall/Mr Elements (AREA)
- Hard Magnetic Materials (AREA)
Description
ペルティエ係数αyx=ホール伝導度σyx×ゼーベック係数Sxx+縦伝導度σxx×ネルンスト係数Syx …(1)
式(1)より、ペルティエ係数によってネルンスト係数の大きさが定まり、異常ネルンスト効果を判断する上でペルティエ係数を評価することは有効である。
20、30 熱電変換デバイス
22 基板
23 発電体
31 中空部材
Claims (9)
- フェルミエネルギーから±0.1eVの範囲にワイル点を有するバンド構造の磁性体からなり、
異常ネルンスト効果により起電力を生じる熱電機構を有する、熱電変換素子。 - 前記磁性体の状態密度は、フェルミエネルギーから±0.1eVの範囲で極値をとるエネルギー依存性を示す、請求項1に記載の熱電変換素子。
- 前記起電力を定める熱電係数は、温度をTとすると、30Kと400Kとの間で-TlogTに比例する温度依存性を示す、請求項1又は2に記載の熱電変換素子。
- 前記磁性体は強磁性を示す、請求項1~3のいずれか1項に記載の熱電変換素子。
- 前記磁性体は立方晶系の結晶構造を有する、請求項1~4のいずれか1項に記載の熱電変換素子。
- 前記磁性体はフルホイスラー系の結晶構造を有する、請求項1~5のいずれか1項に記載の熱電変換素子。
- 0.1μm以上の厚さを有する、請求項1~6のいずれか1項に記載の熱電変換素子。
- 基板と、
前記基板の上に設けられ、複数の熱電変換素子を有する発電体と、を備え、
前記複数の熱電変換素子は、各々が一方向に延在した形状をなし、且つ請求項1~7のいずれか1項の熱電変換素子と同一の磁性体からなり、
前記発電体は、前記複数の熱電変換素子が、前記一方向と垂直な方向に並列に配置され、且つ電気的に直列に接続されて蛇行形状をなす、熱電変換デバイス。 - 請求項1~7のいずれか1項に記載の熱電変換素子と、
中空部材と、を備え、
前記熱電変換素子は、シート状であり、前記中空部材の外表面を覆うように設けられている、熱電変換デバイス。
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US10256391B2 (en) * | 2017-08-25 | 2019-04-09 | International Business Machines Corporation | Thermoelectric device |
US11011692B2 (en) * | 2017-10-11 | 2021-05-18 | Ohio State Innovation Foundation | Thermoelectric device utilizing non-zero berry curvature |
CN113728447A (zh) * | 2019-04-26 | 2021-11-30 | 国立大学法人东京大学 | 热电转换元件以及热电转换装置 |
JP7207560B2 (ja) * | 2019-09-25 | 2023-01-18 | 日本電気株式会社 | 熱流センサおよび熱流計測システム |
JP7342623B2 (ja) * | 2019-10-31 | 2023-09-12 | Tdk株式会社 | 熱電変換素子及びこれを備える熱電変換デバイス |
JP7243573B2 (ja) * | 2019-10-31 | 2023-03-22 | Tdk株式会社 | 熱電変換素子及びその製造方法 |
WO2021187347A1 (ja) * | 2020-03-19 | 2021-09-23 | 国立研究開発法人物質・材料研究機構 | 垂直型熱電変換素子、並びにこれを用いた熱電発電応用機器又は熱流センサー |
EP4141976A1 (en) | 2020-04-23 | 2023-03-01 | The University of Tokyo | Thermoelectric conversion element and thermoelectric conversion device |
JPWO2022264940A1 (ja) * | 2021-06-14 | 2022-12-22 | ||
KR20240038098A (ko) | 2021-08-06 | 2024-03-22 | 고쿠리츠다이가쿠호우진 도쿄다이가쿠 | 열전 변환 소자 |
WO2023054416A1 (ja) * | 2021-09-29 | 2023-04-06 | 日東電工株式会社 | 熱電変換素子及びセンサ |
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JP6231467B2 (ja) * | 2014-11-27 | 2017-11-15 | トヨタ自動車株式会社 | 熱電体 |
US9643385B1 (en) * | 2015-12-02 | 2017-05-09 | The Board Of Trustees Of The University Of Alabama | Layered heusler alloys and methods for the fabrication and use thereof |
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Non-Patent Citations (3)
Title |
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FERREIROS, Yago et al.,Anomalous Nernst and thermal Hall effects in tilted Weyl semimetals,PHYSICAL REVIEW B,2017年09月08日,96,pp. 115202-1-115202-7,<DOI: 10.1103/PhysRevB.96.115202> |
SAKURABA, Yuya,Potential of thermoelectric power generation using anomalous Nernst effect in magnetic materials,Scripta Materialia,2015年06月03日,111,pp. 29-32,<DOI:10.1016/j.scriptamat.2015.04.034> |
WATZMAN, Sarah J. et al.,Dirac dispersion generates unusually large Nernst effect inWeyl semimetals,PHYSICAL REVIEW B,2018年04月18日,97,pp. 161404-1-161404-5,DOI: 10.1103/PhysRevB.97.161404 |
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CN117295385A (zh) | 2023-12-26 |
US20200212282A1 (en) | 2020-07-02 |
EP3651218A1 (en) | 2020-05-13 |
CN110785862A (zh) | 2020-02-11 |
CN110785862B (zh) | 2023-10-27 |
WO2019009308A1 (ja) | 2019-01-10 |
US11683985B2 (en) | 2023-06-20 |
EP3651218A4 (en) | 2021-04-07 |
JP2023083615A (ja) | 2023-06-15 |
JPWO2019009308A1 (ja) | 2020-04-30 |
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