V2O3中Mott转变的动力学Spinodal不稳定性：来自滞后标度和耗散相序的证据
Kinetic Spinodal Instabilities in the Mott Transition in V2O3: Evidence from Hysteresis Scaling and Dissipative Phase Ordering
摘要：
我们提出了第一个系统的观测标度的热滞后与温度扫描率周围的一个突然的热力学转变的相关电子系统。我们发现，在三氧化二钒（V_2O_3）的过冷和过热的深度与温度淬火率的位移。动态标度指数接近平均场预测的2/3。这些意见，结合纯粹的耗散连续订购中看到的“淬火和保持”的实验，表明偏离经典的成核理论对无障碍相序与临界动力学。在热诱导的突然相变中观察到的临界特征和标度表明，类旋节不稳定性的存在不仅是平均场论的伪像，而且也可以存在于真实系统的转变动力学中，幸存的波动。
英文摘要：
We present the first systematic observation of scaling of thermal hysteresis with the temperature scanning rate around an abrupt thermodynamic transition in correlated electron systems. We show that the depth of supercooling and superheating in vanadium sesquioxide (V2O3) shifts with the temperature quench rates. The dynamic scaling exponent is close to the mean field prediction of 2/3. These observations, combined with the purely dissipative continuous ordering seen in "quench-and-hold" experiments, indicate departures from classical nucleation theory toward a barrier-free phase ordering associated with critical dynamics. Observation of critical-like features and scaling in a thermally induced abrupt phase transition suggests that the presence of a spinodal-like instability is not just an artifact of the mean field theories but can also exist in the transformation kinetics of real systems, surviving fluctuations.
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