arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0803.3473cond-mat.other
收藏

多铁性材料BiFeO3中多磁振子共振激发的自旋-电荷-晶格耦合

Spin-Charge-Lattice Coupling through Resonant Multi-Magnon Excitations in Multiferroic BiFeO3

M. O. Ramirez, A. Kumar, S. A. Denev, Y. H. Chu, J. Seidel, L. Martin, S-Y. Yang R. C. Rai, X. Xue, J. F. Ihlefeld, N. Podraza, E. Saiz, S. Lee, J. Klug, S. W. … 展开作者

M. O. Ramirez, A. Kumar, S. A. Denev, Y. H. Chu, J. Seidel, L. Martin, S-Y. Yang R. C. Rai, X. Xue, J. F. Ihlefeld, N. Podraza, E. Saiz, S. Lee, J. Klug, S. W. Cheong, M. J. Bedzyk, O. Auciello, D. G. Schlom, J. Orenstein, R. Ramesh, J. L. Musfeldt, A. P. Litvinchuk, V. Gopalan

备注：
11 pages including figures
阅读 PDF
arXiv 页面 ↗HTML 原文 ↗

摘要：

在多铁性BiFeO 3中证实了由多磁振子过程介导的自旋-电荷-晶格耦合。两个和三个磁振子激发以及多磁振子耦合在电子能量尺度和高温的实验证据的报告。温度依赖的拉曼实验表明，在尼尔温度以下的2-磁振子激发的共振增强高达五个。这些都是在位Fe d-d电子共振、声子和多磁子之间的集体相互作用

英文摘要：

Spin-charge-lattice coupling mediated by multi-magnon processes is demonstrated in multiferroic BiFeO3. Experimental evidence of two and three magnons excitations as well as multimagnon coupling at electronic energy scales and high temperatures are reported. Temperature dependent Raman experiments show up to five resonant enhancements of the 2-magnon excitation below the Neel temperature. These are shown to be collective interactions between on-site Fe d-d electronic resonance, phonons and multimagnons

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

↑