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6 results on '"Lu, C.-L."'

1. High-field magnetoelectric coupling and successive magnetic transitions in Mn-doped polar antiferromagnet Ni3TeO6

Author

Zhang, J. H., Lin, L., Dong, C., Chang, Y. T., Wang, J. F., Lu, C. L., Chen, P. Z., Zhai, W. J., Zhou, G. Z., Huang, L., Tang, Y. S., Zheng, S. H., Liu, M. F., Zhou, X. H., Yan, Z. B., and Liu, J. -M.

Subjects
Condensed Matter - Materials Science
Abstract

Among the 3d transition metal ions doped polar Ni3TeO6, Mn-doped Ni3TeO6 has stimulated great interest due to its high magnetic ordering temperature and complex magnetic phases, but the mechanism of magnetoelectric (ME) coupling is far from understood. Herein we report our systematic investigation of the chemical control of magnetism, metamagnetic transition, and ME properties of Ni3-xMnxTeO6 single crystals in high magnetic field (H) up to 52 T. We present a previously unreported weak ferromagnetic behavior appeared in the ab plane below 9.5 K in addition to the incommensurate helical and commensurate collinear antiferromagnetic states. In the low-field region, a spin-flop type metamagnetic transition without any hysteresis occurs at Hc1 for H // c, while another metamagnetic transition accompanied with a change in electric polarization is observed at Hc2 in the high-field region both for H // c and H // ab above 30 K, which can be attributed to the sudden rotation of magnetic moments at Ni2 sites. The ME measurements reveal that a first-order ME effect is observed in the low-T and low-H regions, while a second-order ME coupling term appears above 30 K in the magnetic field range of Hc1 < H < Hc2 for H // c and H < Hc2 for H // ab, both becoming significant with increasing temperature. Eventually, they are dominated by the second-order ME effect near the antiferromagnetic transition temperature. The present work demonstrates that Ni3-xMnxTeO6 is an exotic magnetoelectric material compared with Ni3TeO6 and its derivatives, thereby providing insights to better understand the magnetism and ME coupling in Ni3TeO6 and its derivatives., Comment: 30 pages with 8 figures

Published
2024
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2. High-field magnetoelectric coupling and successive magnetic transitions in the Mn-doped polar antiferromagnet Ni3TeO6

Author

Zhang, J. H., primary, Lin, L., additional, Dong, C., additional, Chang, Y. T., additional, Wang, J. F., additional, Lu, C. L., additional, Chen, P. Z., additional, Zhai, W. J., additional, Zhou, G. Z., additional, Huang, L., additional, Tang, Y. S., additional, Zheng, S. H., additional, Liu, M. F., additional, Zhou, X. H., additional, Yan, Z. B., additional, and Liu, J.-M., additional

Published
2024
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5. Distinct differences in surface transport between electrolyte-gated (110) and (001) SrTiO3.

Author

Chen, P. Z., Zhang, J. H., Zhou, G. Z., Zhai, W. J., Lin, L., Yan, Z. B., Chen, C., Jiang, X. P., Lu, C. L., and Liu, J.-M.

Subjects
CARRIER density, ELECTRON transport, SURFACE scattering, ELECTROLYTES, PHYSICS
Abstract

Electrolyte gating technology has been widely used as an effective tool to study novel physics at complex oxide surfaces and interfaces. Certain emergent phenomena reported in electro-gated SrTiO3 (STO) surfaces are particularly interesting. Here, we report on the disparate electron transport behaviors of electrolyte-gated STO (001) and (110) oriented surfaces. In contrast to the anomalous transport from an insulating state to a Kondo-like state and then metallic states on the (001) surface, with increasing carrier density, the (110) surface always behaves as an insulating state. A comparison study suggests that the oxygen vacancies and localized Ti3+ ions on the (001) surface are scatter carriers, but no such defects are found on the (110) surface. This suggests that these surfaces are intrinsically insulating, and the observed anomalous effects are likely induced by the Ti3+ ions and oxygen vacancies introduced during electrolyte gating. This work sheds light on complicated phenomena in electrolyte-gated STO-based systems. [ABSTRACT FROM AUTHOR]

Published
2024
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6. Distinct differences in surface transport between electrolyte-gated (110) and (001) SrTiO3.

Author

Chen, P. Z., Zhang, J. H., Zhou, G. Z., Zhai, W. J., Lin, L., Yan, Z. B., Chen, C., Jiang, X. P., Lu, C. L., and Liu, J.-M.

Subjects
*CARRIER density, *ELECTRON transport, *SURFACE scattering, *ELECTROLYTES, *PHYSICS
Abstract

Electrolyte gating technology has been widely used as an effective tool to study novel physics at complex oxide surfaces and interfaces. Certain emergent phenomena reported in electro-gated SrTiO3 (STO) surfaces are particularly interesting. Here, we report on the disparate electron transport behaviors of electrolyte-gated STO (001) and (110) oriented surfaces. In contrast to the anomalous transport from an insulating state to a Kondo-like state and then metallic states on the (001) surface, with increasing carrier density, the (110) surface always behaves as an insulating state. A comparison study suggests that the oxygen vacancies and localized Ti3+ ions on the (001) surface are scatter carriers, but no such defects are found on the (110) surface. This suggests that these surfaces are intrinsically insulating, and the observed anomalous effects are likely induced by the Ti3+ ions and oxygen vacancies introduced during electrolyte gating. This work sheds light on complicated phenomena in electrolyte-gated STO-based systems. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

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