Topological Materials

刘鹏飞 2019-2-28 09:24

https://www.nature.com/articles/s41586-019-0937-5 https://www.nature.com/articles/s41586-019-0944-6 https://www.nature.com/articles/s41586-019-0954-4

个人分类: Topological|3050 次阅读|没有评论

Z2 Topological Invariant

刘鹏飞 2017-9-3 20:25

The strong topological index: (−1) ν0 =σ Γ ×σ M1 ×σ M2 ×σ M3 ×σ L1 ×σ L2 ×σ L3 ×σ A The other three weak topological indices ( ν k , k = 1, 2, 3): (−1) ν1 =σ M1 ×σ M2 ×σ L1 ×σ L2 (−1) ν2 =σ M2 ×σ M3 ×σ L2 ×σ L3 (ͨ ...

个人分类: Topological|3275 次阅读|没有评论

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