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Magnetic Ground States of the Rare-Earth Tripod Kagome Lattice Mg2RE3Sb3O14 (RE = Gd,Dy,Er)

Title: Magnetic Ground States of the Rare-Earth Tripod Kagome Lattice Mg2RE3Sb3O14 (RE = Gd,Dy,Er).
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Name(s): Dun, Z. L., author
Trinh, J., author
Li, K., author
Lee, M., author
Chen, K. W., author
Baumbach, R., author
Hu, Y. F., author
Wang, Y. X., author
Choi, E. S., author
Shastry, B. S., author
Ramirez, A. P., author
Zhou, H. D., author
Type of Resource: text
Genre: Text
Date Issued: 2016-04-12
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: We present the structural and magnetic properties of a new compound family, Mg2RE3Sb3O14 (RE = Gd, Dy, Er), with a hitherto unstudied frustrating lattice, the "tripod kagome" structure. Susceptibility (ac, dc) and specific heat exhibit features that are understood within a simple Luttinger-Tisza-type theory. For RE = Gd, we found long-ranged order (LRO) at 1.65 K, which is consistent with a 120 degrees structure, demonstrating the importance of diople interactions for this 2D Heisenberg system. For RE = Dy, LRO at 0.37 K is related to the "kagome spin ice" physics for a 2D system. This result shows that the tripod kagome structure accelerates the transition to LRO predicted for the related pyrochlore systems. For RE = Er, two transitions, at 80 mK and 2.1 K are observed, suggesting the importance of quantum fluctuations for this putative XY system.
Identifier: FSU_libsubv1_wos_000373773600014 (IID), 10.1103/PhysRevLett.116.157201 (DOI)
Keywords: antiferromagnets, Family, frustrated magnets, model, nd, order, pr, pyrochlore, spin ice, triangular-lattice
Publication Note: The publisher’s version of record is available at http://www.dx.doi.org/10.1103/PhysRevLett.116.157201
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000373773600014
Owner Institution: FSU
Is Part Of: Physical Review Letters.
0031-9007
Issue: iss. 15, vol. 116

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Dun, Z. L., Trinh, J., Li, K., Lee, M., Chen, K. W., Baumbach, R., … Zhou, H. D. (2016). Magnetic Ground States of the Rare-Earth Tripod Kagome Lattice Mg2RE3Sb3O14 (RE = Gd,Dy,Er). Physical Review Letters. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000373773600014