Evidence map›Paper›PMID 39917807›Full record

ArticleACS applied materials & interfaces2025

Observation of Out-of-Plane Antidamping Torque at the Platinum/Permalloy Interface.

John Rex Mohan, Utkarsh Shashank, Angshuman Deka, Takayasu Hanashima, Rohit Medwal, Surbhi Gupta, Rajdeep Singh Rawat, Hironori Asada, Yasuhiro Fukuma

Abstract read
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Article in ACS applied materials & interfaces, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

John Rex MohanDepartment of Physics and Information Technology, Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan.ORCID 0000-0003-1708-1671
Utkarsh ShashankDepartment of Physics, University of Gothenburg, Origovägen 6B, Gothenburg 412 96, Sweden.ORCID 0000-0001-9032-1841
Angshuman DekaBirck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, United States.
Takayasu HanashimaComprehensive Research Organization for Science and Society (CROSS) Neutron Science and Technology Center, 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan.
Rohit MedwalDepartment of Physics, Indian Institute of Technology Kanpur, Kanpur 208016, India.
Surbhi GuptaDepartment of Physics, Motilal Nehru National Institute of Technology, Allahabad 211004, India.
Rajdeep Singh RawatNatural Sciences and Science Education, National Institute of Education, Nanyang Technological University, 637616, Singapore.ORCID 0000-0002-3161-2486
Hironori AsadaGraduate School of Sciences and Technology for Innovation, Yamaguchi University, 2-16-1 Tokiwadai, Ube 755-8611, Japan.
Yasuhiro FukumaDepartment of Physics and Information Technology, Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Achieving electrical control of ferromagnets without magnetic fields is crucial for the dense integration of nanodevices in modern memory and computing technologies. Current methods using spin orbit torques from the spin Hall effect and interfacial Rashba effect are limited to in-plane magnetized ferromagnets. Out-of-plane antidamping torque is essential for the electrical only control of ferromagnets with perpendicular magnetic anisotropy. In this work, we report the observation of out-of-plane polarized spin currents in platinum/permalloy bilayers, linked to interfacial perpendicular magnetic anisotropy at the interface between two metallic layers, as revealed by polarized neutron reflectometry. In-plane angle-resolved spin-torque ferromagnetic resonance measurements characterized the out-of-plane damping-like torque, constituting about 12% of the total torque in ultrathin Pt films, which vanishes when platinum thickness exceeds 4 nm, confirming its interfacial origin. This interfacial perpendicular magnetic anisotropy-induced torque is significant compared to the bulk spin Hall effect, which can be obtained in a typical heavy metal/ferromagnet bilayer. This advancement holds promise for enhancing the efficiency and reliability of spin orbit torque magnetic random-access memory (SOT-MRAM), spin Hall oscillators, and other spintronic devices.

Indexed as

orbital hybridizationout-of-plane antidamping torquepolarized neutron reflectometrySOT-switchingspin−orbital SOTspin−orbit torques

Identifiers

PMID39917807
PMCPMC11843535

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.