半金属锰氧化物磁化动力学中的瞬态量子隔离与临界行为
强关联电子
2019-07-17 v1
摘要
我们结合时间分辨泵浦-探测磁光克尔效应与光电子能谱实验，并辅以理论分析，以确定半金属铁磁锰氧化物 中离域电子的弛豫动力学。我们观察到 的半金属特性决定了电子相变与磁化猝灭的时间尺度，揭示了双交换铁磁体中自旋系统的量子隔离可延续至数百皮秒。我们展示了时间分辨硬 X 射线光电子能谱（TR-HAXPES）作为一种独特工具，可甄别复杂材料中二阶相变过程中强关联电子态的演化。
引用
@article{arxiv.1906.00257,
title = {Transient quantum isolation and critical behavior in the magnetization dynamics of half-metallic manganites},
author = {Tommaso Pincelli and Riccardo Cucini and Adriano Verna and Francesco Borgatti and Masaki Oura and Kenji Tamasaku and Tien-lin Lee and Christoph Schlueter and Stefan Günther and Christian Horst Back and Martina Dell'Angela and Roberta Ciprian and Pasquale Orgiani and Aleksandr Petrov and Fausto Sirotti and Valentin Dediu and Ilaria Bergenti and Patrizio Graziosi and Fabio Miletto Granozio and Yoshihito Tanaka and Munetaka Taguchi and Hiroshi Daimon and Jun Fujii and Giorgio Rossi and Giancarlo Panaccione},
journal= {arXiv preprint arXiv:1906.00257},
year = {2019}
}
备注
Article 25 pages, 6 figures