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  Putative spin liquid in the triangle-based iridate Ba3IrTi2O9

Lee, W.-J., Do, S.-H., Yoon, S., Lee, S., Choi, Y. S., Jang, D.-J., et al. (2017). Putative spin liquid in the triangle-based iridate Ba3IrTi2O9. Physical Review B, 96(1): 014432, pp. 1-8. doi:10.1103/PhysRevB.96.014432.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-17BC-A Version Permalink: http://hdl.handle.net/21.11116/0000-0001-9CA4-6
Genre: Journal Article

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 Creators:
Lee, W.-J.1, Author
Do, S.-H.1, Author
Yoon, Sungwon1, Author
Lee, S.1, Author
Choi, Y. S.1, Author
Jang, D.-J.2, Author              
Brando, M.3, Author              
Lee, M.1, Author
Choi, E. S.1, Author
Ji, S.1, Author
Jang, Z. H.1, Author
Suh, B. J.1, Author
Choi, K.-Y.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
3Manuel Brando, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863469              

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 Abstract: We report on thermodynamic, magnetization, and muon spin relaxation measurements of the strong spin-orbit coupled iridate Ba3IrTi2O9, which constitutes a distinct frustration motif made up of a mixture of edge- and corner-sharing triangles. In spite of a strong antiferromagnetic exchange interaction of the order of 100 K, we find no hint for long-range magnetic order down to 23 mK. The magnetic specific heat data unveil T-linear and T-squared dependences at low temperatures below 1 K. At the respective temperatures, the zero-field muon spin relaxation features a persistent spin dynamics, indicative of unconventional low-energy excitations. A comparison to the 4d isostructural compound Ba3RuTi2O9 suggests that a concerted interplay of compasslike magnetic interactions and frustrated geometry promotes a dynamically fluctuating state in a triangle-based iridate.

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Language(s): eng - English
 Dates: 2017-07-262017-07-26
 Publication Status: Published in print
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 96 (1) Sequence Number: 014432 Start / End Page: 1 - 8 Identifier: ISSN: 1098-0121
CoNE: /journals/resource/954925225008