{"product_id":"tantalum-disulfide-4hb-phase-4hb-tas","title":"Tantalum Disulfide (4Hb phase, 4Hb-TaS₂)","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e\u003cspan\u003e4Hb-TaS₂ is a distinctive \u003c\/span\u003e\u003cstrong\u003epolytype\u003c\/strong\u003e\u003cspan\u003e of TaS₂, which can be regarded as a \u003c\/span\u003e\u003cstrong\u003enatural heterostructure\u003c\/strong\u003e\u003cspan\u003e formed by alternately stacking \u003c\/span\u003e\u003cstrong\u003e1T- and 1H-phase layers\u003c\/strong\u003e\u003cspan\u003e, with space group P6₃\/mmc. The 1T layers host a \u003c\/span\u003e\u003cstrong\u003echarge density wave (CDW)\u003c\/strong\u003e\u003cspan\u003e and are considered a candidate \u003c\/span\u003e\u003cstrong\u003equantum spin liquid\u003c\/strong\u003e\u003cspan\u003e, while the 1H layers provide \u003c\/span\u003e\u003cstrong\u003esuperconductivity\u003c\/strong\u003e\u003cspan\u003e (Tc ≈ 2.7 K). The alternating coupling of these two electronic states within a single crystal causes 4Hb-TaS₂ to exhibit signatures of \u003c\/span\u003e\u003cstrong\u003eunconventional superconductivity\u003c\/strong\u003e\u003cspan\u003e—including spontaneous \u003c\/span\u003e\u003cstrong\u003etime-reversal symmetry breaking\u003c\/strong\u003e\u003cspan\u003e and possible topological superconducting behavior—making it an important platform for studying \u003c\/span\u003e\u003cstrong\u003ecorrelated electrons and unconventional pairing\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"2D Material Supermarket","offers":[{"title":"Default Title","offer_id":53862506004664,"sku":null,"price":7194.0,"currency_code":"CNY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0649\/0069\/4200\/files\/ce2bb0b3d04a0eed9f0c9f6bb1583462.png?v=1786009173","url":"https:\/\/2dmaterialsupermarket.com\/products\/tantalum-disulfide-4hb-phase-4hb-tas","provider":"2D Material Supermarket","version":"1.0","type":"link"}