JP2017038032A - 電子デバイス、トポロジカル絶縁体、トポロジカル絶縁体の製造方法およびメモリ装置 - Google Patents
電子デバイス、トポロジカル絶縁体、トポロジカル絶縁体の製造方法およびメモリ装置 Download PDFInfo
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Abstract
Description
[先行技術文献]
[非特許文献]
非特許文献1 K. v. Klitzing, G. Dorda, and M. Pepper, "New Method for High-Accuracy Determination of the Fine-Structure Constant Based on Quantized Hall Resistance", Phys. Rev. Lett. 45, 494 (1980).
非特許文献2 R. Yoshimi, A. Tsukazaki, Y. Kozuka, J. Falson, J. G. Checkelsky, K. S. Takahashi, N. Nagaosa, M. Kawasaki and Y. Tokura., "Quantum Hall Effect on Top and Bottom Surface States of Topological Insulator (Bi1-xSbx)2Te3 Films", Nature Communications, doi: 10.1038/ncomms7627
式1:Mz(Bi2−xSbx)1−z(Te3−ySey)
ただし、MはTi、V、Cr、Mn、Fe、Co、Ni、Cuのいずれかであり、0<x<2、0<y<3、0<z<1である。
式2:TlMzM'1−zX2
ただし、MはTi、V、Cr、Mn、Fe、Co、Ni、Cuのいずれかであり、M'はBiまたはSbであり、XはSまたはSeであり、0<z<1である。
式3:MzPb1−z(Bi1−xSbx)2Te4
ただし、MはTi、V、Cr、Mn、Fe、Co、Ni、Cuのいずれかであり、0<x<1、0<z<1である。
式4:(Mz(GexPb1−x)1−zTe)n(My(BiaSb1−a)2−yTe3)m
ただし、MはTi、V、Cr、Mn、Fe、Co、Ni、Cuのいずれかであり、0<x<1、0<a<1、0<y<2、0<z<1であり、nおよびmは任意の整数である。
Claims (14)
- 第1の駆動電極と、
前記第1の駆動電極と離間している第2の駆動電極と、
前記第1の駆動電極および前記第2の駆動電極の双方に接し、磁性を有するトポロジカル絶縁体と
を備え、
前記トポロジカル絶縁体は、第1の保持力を有する第1の領域と、前記第1の保持力とは異なる第2の保持力を有する第2の領域とを有する電子デバイス。 - 前記トポロジカル絶縁体は、前記第1の駆動電極および前記第2の駆動電極の間にそれぞれ位置する第1のエッジおよび第2のエッジを有し、
前記第1の領域および前記第2の領域の境界が、前記第1のエッジから前記第2のエッジまで延伸している
請求項1に記載の電子デバイス。 - 前記トポロジカル絶縁体は薄膜形状を有し、
前記第1のエッジおよび前記第2のエッジは、前記薄膜形状の予め定められた面において対向するエッジである
請求項2に記載の電子デバイス。 - 前記第1のエッジにおいて前記第1の領域に接続した第1の検出電極と、
前記第1のエッジにおいて前記第2の領域に接続した第2の検出電極と
を更に備える請求項2または3に記載の電子デバイス。 - 前記第2のエッジにおいて前記第1の領域に接続した第3の検出電極と、
前記第2のエッジにおいて前記第2の領域に接続した第4の検出電極と
を更に備える請求項4に記載の電子デバイス。 - 前記トポロジカル絶縁体は、前記第1の保持力を有する第3の領域を更に有し、
前記第2の領域が、前記第1の領域および前記第3の領域の間に位置している
請求項2から5のいずれか一項に記載の電子デバイス。 - 前記トポロジカル絶縁体は、前記第1の保持力および前記第2の保持力とは異なる第3の保持力を有する第3の領域を更に有し、
前記第1の領域、前記第2の領域および前記第3の領域が、前記第1の駆動電極および前記第2の駆動電極の間において保持力の強さの順番に並んでいる
請求項2から5のいずれか一項に記載の電子デバイス。 - 前記トポロジカル絶縁体が、式1で表される材料であるか、または、式1で表される材料と元素Mを含まない材料とからなる超格子構造を有する材料である
式1:Mz(Bi2−xSbx)1−z(Te3−ySey) ただし、MはTi、V、Cr、Mn、Fe、Co、Ni、Cuのいずれかであり、0<x<2、0<y<3、0<z<1である
請求項1から7のいずれか一項に記載の電子デバイス。 - 前記トポロジカル絶縁体が、式2で表される材料であるか、または、式2で表される材料と元素Mを含まない材料とからなる超格子構造を有する材料である
式2:TlMzM'1−zX2 ただし、MはTi、V、Cr、Mn、Fe、Co、Ni、Cuのいずれかであり、M'はBiまたはSbであり、XはSまたはSeであり、0<z<1である
請求項1から7のいずれか一項に記載の電子デバイス。 - 前記トポロジカル絶縁体が、式3で表される材料であるか、または、式3で表される材料と元素Mを含まない材料とからなる超格子構造を有する材料である
式3:MzPb1−z(Bi1−xSbx)2Te4 ただし、MはTi、V、Cr、Mn、Fe、Co、Ni、Cuのいずれかであり、0<x<1、0<z<1である
請求項1から7のいずれか一項に記載の電子デバイス。 - 前記トポロジカル絶縁体が、式4で表される材料であるか、または、式4で表される材料と元素Mを含まない材料とからなる超格子構造を有する材料である
式4:(Mz(GexPb1−x)1−zTe)n(My(BiaSb1−a)2−yTe3)m ただし、MはTi、V、Cr、Mn、Fe、Co、Ni、Cuのいずれかであり、0<x<1、0<a<1、0<y<2、0<z<1であり、nおよびmは任意の整数である
請求項1から7のいずれか一項に記載の電子デバイス。 - 磁性を有するトポロジカル絶縁体であって、
第1の保持力を有する第1の領域と、
前記第1の保持力とは異なる第2の保持力を有する第2の領域と
を備えるトポロジカル絶縁体。 - トポロジカル絶縁体の製造方法であって、
磁性および第1の保持力を有するトポロジカル絶縁体を準備する段階と、
前記トポロジカル絶縁体の一部の領域にイオンを照射することで、前記第1の保持力とは異なる第2の保持力を有する第2の領域を形成する段階と
を備える製造方法。 - 請求項1から11のいずれか一項に記載の電子デバイスと、
前記電子デバイスの前記第1の領域および前記第2の領域のそれぞれの磁化の方向を検出する検出部と
を備えるメモリ装置。
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EP16836967.6A EP3336902B1 (en) | 2015-08-14 | 2016-08-01 | Electronic device, topological insulator, method for manufacturing topological insulator, and memory device |
PCT/JP2016/072542 WO2017029976A1 (ja) | 2015-08-14 | 2016-08-01 | 電子デバイス、トポロジカル絶縁体、トポロジカル絶縁体の製造方法およびメモリ装置 |
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JP6679095B2 (ja) | 2020-04-15 |
US20180175285A1 (en) | 2018-06-21 |
US10468586B2 (en) | 2019-11-05 |
EP3336902A1 (en) | 2018-06-20 |
EP3336902A4 (en) | 2018-08-22 |
EP3336902B1 (en) | 2019-06-26 |
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