{"id":141743,"date":"2022-07-06T19:22:59","date_gmt":"2022-07-07T00:22:59","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2022\/07\/novel-quantum-simulation-method-clarifies-correlated-properties-of-complex-material-1t-tas2"},"modified":"2022-07-06T19:22:59","modified_gmt":"2022-07-07T00:22:59","slug":"novel-quantum-simulation-method-clarifies-correlated-properties-of-complex-material-1t-tas2","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2022\/07\/novel-quantum-simulation-method-clarifies-correlated-properties-of-complex-material-1t-tas2","title":{"rendered":"Novel quantum simulation method clarifies correlated properties of complex material 1T \u2014TaS2"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/novel-quantum-simulation-method-clarifies-correlated-properties-of-complex-material-1t-tas22.jpg\"><\/a><\/p>\n<p>A team led by Philipp Werner, professor of physics at the University of Fribourg and leader of NCCR MARVEL\u2019s Phase 3 project Continued Support, Advanced Simulation Methods, has applied their advanced quantum simulation method to the investigation of the complex material 1T-TaS<sub>2<\/sub>. The research, recently published in <i>Physical Review Letters<\/i>, helped resolve a conflict between earlier experimental and theoretical results, showing that the surface region of 1T-TaS<sub>2<\/sub> exhibits a nontrivial interplay between band insulating and Mott insulating behavior when the material is cooled to below 180 k.<\/p>\n<p>1T-TaS<sub>2<\/sub> is a layered transition metal dichalcogenide that has been studied intensively for decades because of intriguing links between temperature dependent distortions in the lattice and phenomena linked to electronic correlations.<\/p>\n<p>Upon cooling, the material undergoes a series of lattice rearrangements with a simultaneous redistribution of the electronic density, a phenomenon known as charge density wave (CDW) order. In the <a href=\"https:\/\/phys.org\/tags\/phase\/\" rel=\"tag\" class=\"\">phase<\/a> reached when the material is cooled to below 180 k, an in-plane periodic lattice distortion leads to the formation of star-of-David (SOD) clusters made of 13 tantalum atoms. Simultaneously, a strong increase in resistivity is observed. Additional interesting properties of the low temperature phase include a transition to a <a href=\"https:\/\/phys.org\/tags\/superconducting+state\/\" rel=\"tag\" class=\"\">superconducting state<\/a> under pressure as well as the possibility to switch this phase into long-lived metallic metastable phases by applying short pulses of laser or voltage, making the material potentially interesting for use in future memory devices.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A team led by Philipp Werner, professor of physics at the University of Fribourg and leader of NCCR MARVEL\u2019s Phase 3 project Continued Support, Advanced Simulation Methods, has applied their advanced quantum simulation method to the investigation of the complex material 1T-TaS2. The research, recently published in Physical Review Letters, helped resolve a conflict between [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48,1617],"tags":[],"class_list":["post-141743","post","type-post","status-publish","format-standard","hentry","category-particle-physics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/141743","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=141743"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/141743\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=141743"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=141743"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=141743"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}