超冷玻璃中磁场效应的多阱隧穿模型
Multi-Welled Tunneling Model for the Magnetic-Field Effect in Ultracold Glasses
摘要：
在过去的十年中，已经报道了多硅酸盐玻璃在低温下$T$对静态磁场$B$的热和介电响应的令人困惑的观察，并呼吁扩展标准的两能级系统隧穿模型。提出了一种解释，能够捕获在同一时间的$T$ -和$B$ -依赖的比热$C_p$和介电常数$ε$在这些玻璃。这一理论指出，存在异常的多井隧道系统的玻璃-旁边的标准的两个级别的系统-和指示的玻璃，应该实现更大的电磁容增强。
英文摘要：
Puzzling observations of both thermal and dielectric responses in multi-silicate glasses at low temperatures $T$ to static magnetic fields $B$ have been reported in the last decade and call for an extension of the standard two-level systems tunneling model. An explanation is proposed, capable of capturing at the same time the $T$- and $B$-dependence of the specific heat $C_p$ and of the dielectric constant $ε$ in these glasses. This theory points to the existence of anomalous multi-welled tunneling systems in the glasses -- alongside the standard two-level systems -- and indications are given for glasses which should achieve larger electric magnetocapacitive enhancements.
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