Electron-Phonon and Magnetoelastic Interactions in Ferromagnetic Co[N(CN)2]2
Electron-Phonon and Magnetoelastic Interactions in Ferromagnetic Co[N(CN)2]2
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DOI：
10.1103/physrevlett.111.047202
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发表时间：
2013-07-24
影响因子：
8.6
通讯作者：
Musfeldt, J. L.
中科院分区：
文献类型：
--
作者：
Brinzari, T. V.;Haraldsen, J. T.;Musfeldt, J. L.
我们将拉曼和红外振动光谱与互补晶格动力学计算和磁化测量相结合，以揭示Co[N（CN）（2）]（2）中电荷-晶格-自旋耦合的动力学方面。我们的工作揭示了电子-声子耦合作为一个磁场驱动的避免交叉的低洼的Co2+电子激发与两个配体声子和磁弹性效应，信号一个灵活的本地CoN 6环境。它们的同时存在表明，在这个系统中，能量在多个长度和时间尺度上转移的容易程度。
We combined Raman and infrared vibrational spectroscopies with complementary lattice dynamics calculations and magnetization measurements to reveal the dynamic aspects of charge-lattice-spin coupling in Co[N(CN)(2)](2). Our work uncovers electron-phonon coupling as a magnetic field-driven avoided crossing of the low-lying Co2+ electronic excitation with two ligand phonons and a magnetoelastic effect that signals a flexible local CoN6 environment. Their simultaneous presence indicates the ease with which energy is transferred over multiple length and time scales in this system.