Spin liquid ground state in the frustrated J1-J2 zigzag chain system BaTb2O4
| Autor: | Aczel, A. A., Li, L., Garlea, V. O., Yan, J. -Q., Weickert, F., Vapf, V. S., Movshovich, R., Jaime, M., Baker, P. J., Keppens, V., Mandrus, D. |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Phys. Rev. B 92, 041110(R) (2015) |
| Druh dokumentu: | Working Paper |
| Popis: | We have investigated polycrystalline samples of the zigzag chain system BaTb$_2$O$_4$ with a combination of magnetic susceptibility, heat capacity, neutron powder diffraction, and muon spin relaxation measurements. Despite the onset of Tb$^{3+}$ short-range antiferromagnetic correlations at $|\theta_{CW}|$ $=$ 18.5 K and a very large effective moment, our combined measurements indicate that BaTb$_2$O$_4$ remains paramagnetic down to 0.095 K. The magnetic properties of this material show striking similarities to the pyrochlore antiferromagnet Tb$_2$Ti$_2$O$_7$, and therefore we propose that BaTb$_2$O$_4$ is a new large moment spin liquid candidate. Comment: 5 pages, 3 figures |
| Databáze: | arXiv |
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