{"product_id":"mnbi-te-family-mnbi-te-bi-te-ₙ-series-manganese-bismuth-telluride-homologous-family","title":"MnBi₂Te₄ family \/ (MnBi₂Te₄)(Bi₂Te₃)ₙ series (Manganese Bismuth Telluride homologous family)","description":"\u003cp\u003e\u003cbr\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eA family of layered van der Waals magnetic topological materials built from magnetic MnBi₂Te₄ septuple layers (Te–Bi–Te–Mn–Te–Bi–Te) interleaved with a variable number n of non-magnetic Bi₂Te₃ quintuple layers, spanning \u003cstrong\u003eMnBi₂Te₄ (n = 0), MnBi₄Te₇ (n = 1), and MnBi₆Te₁₀ (n = 2)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe parent compound \u003cstrong\u003eMnBi₂Te₄\u003c\/strong\u003e (space group R3̄m) is the first realized \u003cstrong\u003eintrinsic antiferromagnetic topological insulator\u003c\/strong\u003e, combining A-type antiferromagnetic order (T_N ≈ 25 K) with topological surface states, which enables the \u003cstrong\u003equantum anomalous Hall effect, axion-insulator states, and layer-dependent magnetic topology\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eInserting Bi₂Te₃ spacer layers progressively increases the interlayer separation and thereby \u003cstrong\u003eweakens the interlayer antiferromagnetic coupling\u003c\/strong\u003e: \u003cstrong\u003eMnBi₄Te₇\u003c\/strong\u003e (space group P3̄m1) has a lower ordering temperature and lies closer to a ferromagnetic ground state, while \u003cstrong\u003eMnBi₆Te₁₀\u003c\/strong\u003e (space group R3̄m) is even more strongly decoupled, exhibiting weak antiferromagnetic or near-ferromagnetic order.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThis systematic \u003cstrong\u003emagnetic dilution\u003c\/strong\u003e provides a tunable route to engineer \u003cstrong\u003eaxion insulators and quantum anomalous Hall physics\u003c\/strong\u003e, making the MnBi₂Te₄ family a central platform for studying the interplay between magnetism and band topology.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eRelated Sb-substituted variants such as \u003cstrong\u003eMn(Bi₀.₇₃Sb₀.₂₇)₄Te₇\u003c\/strong\u003e further tune the \u003cstrong\u003ecarrier type and Fermi level\u003c\/strong\u003e toward charge neutrality while modulating the interlayer magnetic coupling, offering additional control for optimizing these topological states.\u003c\/p\u003e","brand":"2D Material Supermarket","offers":[{"title":"Default Title","offer_id":53906310627512,"sku":null,"price":5134.0,"currency_code":"CNY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0649\/0069\/4200\/files\/91f5a4b89f1b1ba558eefc49f65fe22e_31cbbb6d-e936-4502-81af-a896c62aa437.jpg?v=1786625572","url":"https:\/\/2dmaterialsupermarket.com\/products\/mnbi-te-family-mnbi-te-bi-te-%e2%82%99-series-manganese-bismuth-telluride-homologous-family","provider":"2D Material Supermarket","version":"1.0","type":"link"}