单分子光谱揭示的挠曲磁电效应的直接证据。

Direct Evidence of Flexomagnetoelectric Effect Revealed by Single-Molecule Spectroscopy.

作者信息

Veshchunov I S, Mironov S V, Magrini W, Stolyarov V S, Rossolenko A N, Skidanov V A, Trebbia J-B, Buzdin A I, Tamarat Ph, Lounis B

机构信息

University Bordeaux, LP2N, F-33405 Talence, France.

Institut d'Optique and CNRS, LP2N, F-33405 Talence, France.

出版信息

Phys Rev Lett. 2015 Jul 10;115(2):027601. doi: 10.1103/PhysRevLett.115.027601. Epub 2015 Jul 6.

DOI:10.1103/PhysRevLett.115.027601

PMID:26207504

Abstract

We report direct evidence of the electric field induced by a magnetization inhomogeneity in an iron garnet film. This inhomogeneity was created by the nonuniform magnetic fields generated at domain boundaries of a type-I superconductor in the intermediate state. At liquid helium temperatures, Stark shifts of sharp single-molecule zero-phonon lines were used to probe the local electric fields generated by this flexomagnetoelectric effect. The measured electric fields are in accordance with theoretical estimations.

摘要

我们报告了铁石榴石薄膜中磁化不均匀性所感应出的电场的直接证据。这种不均匀性是由处于中间态的I型超导体畴边界处产生的非均匀磁场造成的。在液氦温度下，利用尖锐单分子零声子线的斯塔克位移来探测这种挠曲磁电效应所产生的局部电场。测量得到的电场与理论估计相符。