تقرير
Spin excitations in the quantum dipolar magnet Yb(BaBO$_3$)$_3$
| العنوان: | Spin excitations in the quantum dipolar magnet Yb(BaBO$_3$)$_3$ |
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| المؤلفون: | Jiang, C. Y., Yang, Y. X., Gao, Y. X., Wan, Z. T., Zhu, Z. H., Shiroka, T., Chen, C. S., Wu, Q., Li, X., Jiao, J. C., Chen, K. W., Bao, Y., Tian, Z. M., Shu, L. |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons |
| الوصف: | We report results of magnetization, specific-heat and muon-spin relaxation measurements on single crystals of disorder-free Yb$^{3+}$ triangular lattice Yb(BaBO$_3$)$_3$. The magnetization experiments show anisotropic magnetic properties with Curie-Weiss temperatures $\theta_{\perp}=-1.40$~K ($H \perp c$) and $\theta_{\parallel}=-1.16$~K ($H \parallel c$) determined from low temperature data. The absence of both long-range antiferromagnetic order and spin freezing is confirmed down to 0.27 K at zero field. A two-level Schottky anomaly due to the opening of the ground-state Kramers doublet is observed from the low-temperature specific-heat measurements when the applied magnetic fields $\mu_0H >0.7$~T. At zero field, the increase of both $C_{\rm mag}/T$ and the muon spin relaxation rate $\lambda$ below 1~K is due to the electronic spin excitations, which often exist in quantum magnets where dipole-dipole interaction creates an anisotropy of magnetic properties. The spin excitation is also supported by the unusual maximum of field dependence of $\lambda$ due to the field-induced increase of the density of excitations. We argue that dipolar interaction is dominant and induces the spin dynamics in the quantum magnet Yb(BaBO$_3$)$_3$. Comment: accepted by Phys. Rev. B |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.106.014409 |
| URL الوصول: | http://arxiv.org/abs/2207.00702 |
| رقم الأكسشن: | edsarx.2207.00702 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.106.014409 |
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