NEW KIND OF MAGNETO-OPTICAL RESONANCE OBSERVED IN THE ORGANIC METAL ALPHA -(BEDT-TTF)2KHG(SCN)4
NEW KIND OF MAGNETO-OPTICAL RESONANCE OBSERVED IN THE ORGANIC METAL ALPHA -(BEDT-TTF)2KHG(SCN)4
复制标题
在有机金属阿尔法中观察到的新型磁光共振 -(BEDT-TTF)2KHG(SCN)4
DOI：
10.1103/physrevlett.81.713
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发表时间：
1998
影响因子：
8.6
通讯作者：
P. Goy
中科院分区：
文献类型：
--
作者：
A. Ardavan;J. Schrama;S. Blundell;J. Singleton;W. Hayes;M. Kurmoo;P. Day;P. Goy
我们实验证明了一种新的磁共振，费米面遍历共振（FTR）的机制。这是由于载流子在外磁场中周期性地穿越费米面准一维截面所引起的。由于Q1 D费米面的翘曲，载流子的真实的空间速度在它们穿过FS时振荡，从而在材料的高频电导率中产生共振。结果包含有关FS的信息，包括翘曲分量的方向和谐波含量。使用旋转共振腔系统，在α−（BEDT-TTF）2 KHg（SCN）4中观察到FTR。
We experimentally demonstrate a mechanism for a new kind of magnetic resonance, the Fermi-surface traversal resonance (FTR). This is caused by the periodic traversal of carriers across quasi-one-dimensional (Q1D) sections of Fermi surface (FS) in an external magnetic field. Owing to the warping of the Q1D Fermi sheets, the real space velocities of the carriers oscillate as they cross the FS, generating resonances in the high frequency conductivity of the material. The results contain information about the FS, including the direction and harmonic content of the warping components. Using a rotating resonant-cavity system, FTRs have been observed in α−(BEDT− TTF) 2 KHg (SCN) 4.