论文标题

时间依赖的交换创造了物质的时间损失状态

Time-dependent exchange creates the time-frustrated state of matter

论文作者

Valiulin, V. E., Chtchelkatchev, N. M., Mikheyenkov, A. V., Vinokur, V. M.

论文摘要

磁系统由磁矩之间的交换相互作用造成挫败感,从而导致基态变性,并导致新的拓扑状态通常被称为沮丧的物质状态(FSM)。普遍讨论的磁系统中的挫败感具有空间起源。在这里,我们证明了一系列与真正的智障交流互动相结合的纳米磁体会发展出一种新的物质状态,时代沮丧的物质(TFM)。在具有时间依赖性智障交换相互作用的自旋系统中,单个旋转叶片不会立即影响其他旋转,而是在延迟一段延迟之后。这意味着交换相互作用的迹象会改变,导致铁磁相互作用,取决于时间。结果,系统的时间进化本质上是非马克维亚人。不同磁性订单之间的新兴竞争导致了一种新型的时核挫败感。为了建立这种范式转移,我们专注于示例性系统,一种颗粒多效应,在该系统中,交换转移介质具有明显的频率分散体,因此发展了TFM。

Magnetic systems governed by exchange interactions between magnetic moments harbor frustration that leads to ground state degeneracy and results in the new topological state often referred to as a frustrated state of matter (FSM). The frustration in the commonly discussed magnetic systems has a spatial origin. Here we demonstrate that an array of nanomagnets coupled by the real retarded exchange interactions develops a new state of matter, time frustrated matter (TFM). In a spin system with the time-dependent retarded exchange interaction, a single spin-flip influences other spins not instantly but after some delay. This implies that the sign of the exchange interaction changes, leading to either ferro- or antiferromagnetic interaction, depends on time. As a result, the system's temporal evolution is essentially non-Markovian. The emerging competition between different magnetic orders leads to a new kind of time-core frustration. To establish this paradigmatic shift, we focus on the exemplary system, a granular multiferroic, where the exchange transferring medium has a pronounced frequency dispersion and hence develops the TFM.

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