Hirjibehedin C F, Dujovne Irene, Pinczuk A, Dennis B S, Pfeiffer L N, West K W
Department of Physics, Columbia University, New York, New York 10027, USA.
Phys Rev Lett. 2005 Aug 5;95(6):066803. doi: 10.1103/PhysRevLett.95.066803. Epub 2005 Aug 2.
Resonant inelastic light scattering experiments at nu = 1/3 reveal a novel splitting of the long-wavelength modes in the low energy spectrum of quasi-particle excitations in the charge degree of freedom. We find a single peak at small wave vectors that splits into two distinct modes at larger wave vectors. The evidence of well-defined dispersive behavior at small wave vectors indicates a coherence of the quantum fluid in the micron length scale. We evaluate interpretations of long-wavelength modes of the electron liquid.
在频率ν = 1/3 下进行的共振非弹性光散射实验揭示了准粒子激发低能谱中电荷自由度长波模式的一种新分裂。我们发现在小波矢处有一个单峰，它在大波矢处分裂成两个不同的模式。小波矢处明确的色散行为证据表明量子流体在微米长度尺度上具有相干性。我们评估了电子液体长波模式的各种解释。
