Phononic Resonant Relaxation in Magnetic Hysteresis of Single-Molecule Magnets  

作　　者：Lei Gu Jia Luo Qiancheng Luo Yuanqi Zhai Yan-Zhen Zheng Guoping Zhao 

机构地区：[1]College of Physics and Electronic Engineering,Sichuan Normal University,Chengdu 610068,China [2]Frontier Institute of Science and Technology(FIST),Xi’an Jiaotong University,Xi’an 710054,China [3]Center for Magnetism and Spintronics,Sichuan Normal University,Chengdu 610068,China

出　　处：《Chinese Physics Letters》2025年第2期109-124,共16页中国物理快报(英文版)

基　　金：the support from the Sichuan Normal University;support from the National Natural Science Foundation of China(Grant No.22375157);support from the National Natural Science Foundation of China(Grant Nos.12474122,52171188,51771127,and 52111530143);the Central Government Funds of Guiding Local Scientific and Technological Development for Sichuan Province(Grant No.2021ZYD0025)。

摘　　要：Lanthanide-based single-molecule magnets exhibit broad magnetic hysteresis,which manifests as slow magnetic relaxation in strong magnetic fields.However,the origin of the nontrivial hysteresis behaviors remains debated.Here,we propose two influential mechanisms:activation of optical-phonon-mediated direct transitions within the ground-state doublet and the resonant Raman process.These discoveries,coupled with the g-factor anisotropy,account for the observed hysteresis behaviors in the regimes of fast magnetic relaxation.Our findings complement the recognized mechanisms used to interpret the magnetic hysteresis of single-molecule magnets.

关 键 词：PROCESS HYSTERESIS MAGNETS 

分 类 号：O469[理学—凝聚态物理]