Introduction to nuclear spin waves in ferro- and antiferromagnets
Introduction to nuclear spin waves in ferro- and antiferromagnets
复制标题
铁磁体和反铁磁体中的核自旋波简介
DOI：
10.1063/5.0107157
复制
发表时间：
2022
影响因子：
3.2
通讯作者：
S. Rezende
中科院分区：
文献类型：
--
作者：
S. Rezende
集体核自旋激发，称为核自旋波或磁振子，通过原子中的核自旋和电子自旋的超精细耦合以及相邻原子的电子自旋之间的交换相互作用在强磁性材料中实现。大约在四五十年前，核自旋波引起了全世界理论和实验研究人员的兴趣，然后逐渐减弱。最近，两个关于倾斜反铁磁体MnCO 3中核自旋电子效应的实验报告表明，可以使用核自旋态产生自旋电流，桥接两个完全独立的世界，一个是核自旋激发，另一个是自旋电子学。本文简要地回顾了铁磁和反铁磁材料中核自旋波的基本概念和性质，介绍了不久前用单轴各向异性AFMnF_2和立方各向异性AFRbMnF_3得到的一些有意义的实验结果，并与理论进行了比较。我们还简要介绍了最近在倾斜反铁磁体MnCO_3中观察到的核自旋泵效应和核自旋Seebeck效应。其他可能的AF候选人的核自旋电子效应的研究进行了讨论。
Collective nuclear spin excitations, called nuclear spin waves or magnons, are enabled in strongly magnetic materials by the hyperfine coupling of the nuclear and electronic spins in an atom and the exchange interaction between electronic spins of neighboring atoms. Nuclear spin waves attracted the interest of theoretical and experimental researchers worldwide about four to five decades ago and then waned. Very recently, two experimental reports of nuclear spintronic effects in the canted antiferromagnet MnCO3 have shown that spin currents can be generated using nuclear spin states, bridging two quite separate worlds, one of nuclear spin excitations and the other of spintronics. In this Tutorial, we briefly review the basic concepts and properties of nuclear spin waves in ferro- and antiferromagnetic (AF) materials and present a few significant experimental results obtained some time ago with the uniaxial anisotropy AF MnF2 and the cubic anisotropy AF RbMnF3 and compare them with theory. We also briefly present the recent experimental observations of the nuclear spin pumping effect and the nuclear spin Seebeck effect in the canted antiferromagnet MnCO3. Other possible AF candidates for studies of nuclear spintronic effects are discussed.
影响因子：
19.6
作者：
Jackson, D. M.;Gangloff, D. A.;Atature, M.
通讯作者：
Atature, M.
影响因子：
3.2
作者：
Siddiqui, Saima A.;Sklenar, Joseph;Hoffmann, Axel
通讯作者：
Hoffmann, Axel