Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2025-12-17 10:00
Analysis of Spin Dynamics in Antiferromagnets Under Electromagnetic Fields
Tomoki Mukita, Seiya kishimoto, Katsuji Nakagawa, Shinichiro Ohnuki (Nihon Univ.) EMT2025-70
Abstract (in Japanese) (See Japanese page) 
(in English) Antiferromagnetic materials (AFMs) are promising candidates for use in spintronic and terahertz (THz) devices because of their ultrafast spin dynamics. Direct experimental observation of sublattice magnetization is challenging and motivates numerical analysis. We developed a multiphysics simulation integrating the Landau–Lifshitz–Gilbert–Slonczewsk (LLGS) equations for AFM sublattices using Maxwell's equations, modeling a NiO thin film on platinum, where a spin-polarized current induces torque by the spin Hall effect. The results show that electromagnetic field coupling significantly affects the threshold current required to initiate and sustain AFM precession, highlighting the differences from single-physics simulations based on the LLGS equations. This framework provides a robust tool for analyzing the AFM spin dynamics and designing AFM-based spintronic and THz devices. Furthermore, the multiscale time-stepping model improves the computational efficiency.
Keyword (in Japanese) (See Japanese page) 
(in English) Antiferromagnet / LLGS equations / Maxwell’s equations / Multiphysics Simulation / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 294, EMT2025-70, pp. 80-84, Dec. 2025.
Paper # EMT2025-70 
Date of Issue 2025-12-09 (EMT) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EMT2025-70

Conference Information
Committee EMT IEE-EMT  
Conference Date 2025-12-16 - 2025-12-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Nihon Univ. Surugadai Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Electromagnetic Theory, etc. 
Paper Information
Registration To EMT 
Conference Code 2025-12-EMT-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of Spin Dynamics in Antiferromagnets Under Electromagnetic Fields 
Sub Title (in English)  
Keyword(1) Antiferromagnet  
Keyword(2) LLGS equations  
Keyword(3) Maxwell’s equations  
Keyword(4) Multiphysics Simulation  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Tomoki Mukita  
1st Author's Affiliation Nihon University (Nihon Univ.)
2nd Author's Name Seiya kishimoto  
2nd Author's Affiliation Nihon University (Nihon Univ.)
3rd Author's Name Katsuji Nakagawa  
3rd Author's Affiliation Nihon University (Nihon Univ.)
4th Author's Name Shinichiro Ohnuki  
4th Author's Affiliation Nihon University (Nihon Univ.)
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2025-12-17 10:00:00 
Presentation Time 25 minutes 
Registration for EMT 
Paper # EMT2025-70 
Volume (vol) vol.125 
Number (no) no.294 
Page pp.80-84 
#Pages 5 
Date of Issue 2025-12-09 (EMT) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan