Magnetic-field-induced spin reorientation in a c-cut TmFeO3 single crystal observed by terahertz spectroscopy - Details

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Abstract：

In　this　study,　we　utilized　time-domain　terahertz　magneto-optical　spectroscopy　to　investigate　the　spin　resonance　in　a　c-cut　TmFeO3　single　crystal　at　T　=　1.6　K　under　different　magnetic　fields　and　characterized　its　intricate　internal　interactions.　By　selectively　exciting　the　magnetic　resonance　modes　in　the　crystal,　we　found　that　as　the　magnetic　field　increases,　the　quasi-ferromagnetic　(q-FM)　mode　of　TmFeO3　single　crystal　shifts　towards　higher　frequencies,　while　the　quasi-antiferromagnetic　(q-AFM)　mode　transforms　into　the　q-FM　mode　at　low　critical　magnetic　fields　(2.2–3.6　T).　Through　magnetic　structure　analysis　and　theoretical　calculations,　it　is　confirmed　that　the　magnetic　moment　of　TmFeO3　undergoes　a　magnetic-field-induced　spin　reorientation　from　Γ2　to　Γ4　phase.　Materials　with　magnetic　moment　flipping　at　low　magnetic　fields　may　find　applications　for　antiferromagnetic　spintronic　devices　in　the　future.　©　2023　Elsevier　B.V.

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Antiferromagnetic spintronic devices Magnetic resonance Spin reorientation Terahertz

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[ 1 ] [Wang N.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
[ 2 ] [Zhu G.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
[ 3 ] [Hu Z.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
[ 4 ] [Ju X.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
[ 5 ] [Ju X.]The Engineering Research Center for CAD/CAM of Fujian Universities, Putian University, Putian, 351100, China
[ 6 ] [Ju X.]Engineering Research Center of Smart Distribution Grid Equipment, Fujian Province University, Fuzhou, 350108, China
[ 7 ] [Su H.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
[ 8 ] [Huang F.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China
[ 9 ] [Chen Q.]School of Physics and Electronic Engineering, Qujing Normal University, Qujing, 655011, China
[ 10 ] [Cao Y.]School of Physics and Electronic Engineering, Qujing Normal University, Qujing, 655011, China
[ 11 ] [Wang X.]School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, 350108, China

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Source ：

Infrared Physics and Technology

ISSN： 1350-4495

Year： 2023

Volume： 135

3 . 1

JCR@2023

3 . 1 0 0

JCR@2023

JCR Journal Grade：2

CAS Journal Grade：3

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ESI Highly Cited Papers on the List： 0 Unfold All

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