Gregor, Karol and Motrunich, Olexei I. (2008) Nonmagnetic impurities in the spin-1/2 kagome antiferromagnet. Physical Review B, 77 (18). Art. No. 184423. ISSN 1098-0121. doi:10.1103/PhysRevB.77.184423. https://resolver.caltech.edu/CaltechAUTHORS:GREprb08
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Abstract
Motivated by recent experiments on ZnCu3(OH)6Cl2, we study the inhomogeneous Knight shifts (local susceptibilities) of a spin-1/2 kagome antiferromagnet in the presence of nonmagnetic impurities. Using high temperature series expansion, we calculate the local susceptibility and its histogram down to about T=0.4J. At low temperatures, we explore a Dirac spin liquid proposal and calculate the local susceptibility in the mean field and beyond mean field using Gutzwiller projection, finding the overall picture to be consistent with the NMR experiments.
| Item Type: | Article | ||||||
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| Additional Information: | © 2008 The American Physical Society. (Received 3 March 2008; published 20 May 2008) We thank J. Alicea, M.P.A. Fisher, S. Ryu, and R.R.P. Singh for useful discussions and the A.P. Sloan Foundation for financial support (OIM). | ||||||
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| Subject Keywords: | antiferromagnetic materials; Knight shift; magnetic susceptibility | ||||||
| Issue or Number: | 18 | ||||||
| DOI: | 10.1103/PhysRevB.77.184423 | ||||||
| Record Number: | CaltechAUTHORS:GREprb08 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:GREprb08 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 10650 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Archive Administrator | ||||||
| Deposited On: | 28 May 2008 | ||||||
| Last Modified: | 08 Nov 2021 21:09 |
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