Gapless spin liquid ground state in the S = 1/2 vanadium oxyfluoride kagome antiferromagnet [NH4]2[C7H14N][V7O6F18]
The vanadium oxyfluoride [NH(4)](2)[C(7)H(14)N][V(7)O(6)F(18)] (DQVOF) is a geometrically frustrated magnetic bilayer material. The structure consists of S = 1/2 kagome planes of V(4+) d(1) ions with S = 1 V(3+) d(2) ions located between the kagome layers. Muon spin relaxation measurements demonstra...
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| Veröffentlicht in: | Physical review letters 2013-05, Vol.110 (20), p.207208-207208, Article 207208 |
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| container_title | Physical review letters |
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| creator | Clark, L Orain, J C Bert, F De Vries, M A Aidoudi, F H Morris, R E Lightfoot, P Lord, J S Telling, M T F Bonville, P Attfield, J P Mendels, P Harrison, A |
| description | The vanadium oxyfluoride [NH(4)](2)[C(7)H(14)N][V(7)O(6)F(18)] (DQVOF) is a geometrically frustrated magnetic bilayer material. The structure consists of S = 1/2 kagome planes of V(4+) d(1) ions with S = 1 V(3+) d(2) ions located between the kagome layers. Muon spin relaxation measurements demonstrate the absence of spin freezing down to 40 mK despite an energy scale of 60 K for antiferromagnetic exchange interactions. From magnetization and heat capacity measurements we conclude that the S = 1 spins of the interplane V(3+) ions are weakly coupled to the kagome layers, such that DQVOF can be viewed as an experimental model for S = 1/2 kagome physics, and that it displays a gapless spin liquid ground state. |
| doi_str_mv | 10.1103/PhysRevLett.110.207208 |
| format | Article |
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From magnetization and heat capacity measurements we conclude that the S = 1 spins of the interplane V(3+) ions are weakly coupled to the kagome layers, such that DQVOF can be viewed as an experimental model for S = 1/2 kagome physics, and that it displays a gapless spin liquid ground state.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.110.207208</identifier><identifier>PMID: 25167449</identifier><language>eng</language><publisher>United States: American Physical Society</publisher><subject>Physics</subject><ispartof>Physical review letters, 2013-05, Vol.110 (20), p.207208-207208, Article 207208</ispartof><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c260t-dd3bc96df515eb573128ddc6f6d83060ed0eea32e05c027916d19704cf47297b3</citedby><cites>FETCH-LOGICAL-c260t-dd3bc96df515eb573128ddc6f6d83060ed0eea32e05c027916d19704cf47297b3</cites><orcidid>0000-0003-3627-5228</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,2863,2864,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25167449$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://cea.hal.science/cea-01477926$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Clark, L</creatorcontrib><creatorcontrib>Orain, J C</creatorcontrib><creatorcontrib>Bert, F</creatorcontrib><creatorcontrib>De Vries, M A</creatorcontrib><creatorcontrib>Aidoudi, F H</creatorcontrib><creatorcontrib>Morris, R E</creatorcontrib><creatorcontrib>Lightfoot, P</creatorcontrib><creatorcontrib>Lord, J S</creatorcontrib><creatorcontrib>Telling, M T F</creatorcontrib><creatorcontrib>Bonville, P</creatorcontrib><creatorcontrib>Attfield, J P</creatorcontrib><creatorcontrib>Mendels, P</creatorcontrib><creatorcontrib>Harrison, A</creatorcontrib><title>Gapless spin liquid ground state in the S = 1/2 vanadium oxyfluoride kagome antiferromagnet [NH4]2[C7H14N][V7O6F18]</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>The vanadium oxyfluoride [NH(4)](2)[C(7)H(14)N][V(7)O(6)F(18)] (DQVOF) is a geometrically frustrated magnetic bilayer material. 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The structure consists of S = 1/2 kagome planes of V(4+) d(1) ions with S = 1 V(3+) d(2) ions located between the kagome layers. Muon spin relaxation measurements demonstrate the absence of spin freezing down to 40 mK despite an energy scale of 60 K for antiferromagnetic exchange interactions. From magnetization and heat capacity measurements we conclude that the S = 1 spins of the interplane V(3+) ions are weakly coupled to the kagome layers, such that DQVOF can be viewed as an experimental model for S = 1/2 kagome physics, and that it displays a gapless spin liquid ground state.</abstract><cop>United States</cop><pub>American Physical Society</pub><pmid>25167449</pmid><doi>10.1103/PhysRevLett.110.207208</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0003-3627-5228</orcidid><oa>free_for_read</oa></addata></record> |
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| title | Gapless spin liquid ground state in the S = 1/2 vanadium oxyfluoride kagome antiferromagnet [NH4]2[C7H14N][V7O6F18] |
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