Dynamical Negative Differential Resistance in Antiferromagnetically Coupled Few-Atom Spin Chains
Rolf-Pissarczyk, Steffen1,2; Yan, Shichao1,2,3; Malavolti, Luigi1,2; Burgess, Jacob A. J.1,2,4; McMurtrie, Gregory1,2; Loth, Sebastian1,2,5
2017-11-21
Source PublicationPHYSICAL REVIEW LETTERS
ISSN0031-9007
Volume119Issue:21
Status已发表
DOI10.1103/PhysRevLett.119.217201
AbstractWe present the appearance of negative differential resistance (NDR) in spin-dependent electron transport through a few-atom spin chain. A chain of three antiferromagnetically coupled Fe atoms (Fe trimer) was positioned on a Cu2N/Cu(100) surface and contacted with the spin-polarized tip of a scanning tunneling microscope, thus coupling the Fe trimer to one nonmagnetic and one magnetic lead. Pronounced NDR appears at the low bias of 7 mV, where inelastic electron tunneling dynamically locks the atomic spin in a long-lived excited state. This causes a rapid increase of the magnetoresistance between the spin-polarized tip and Fe trimer and quenches elastic tunneling. By varying the coupling strength between the tip and Fe trimer, we find that in this transport regime the dynamic locking of the Fe trimer competes with magnetic exchange interaction, which statically forces the Fe trimer into its high-magnetoresistance state and removes the NDR.
Indexed BySCI ; EI
Language英语
Funding ProjectEuropean Research Council (ERC) under the European Union's Horizon research and innovation program[ERC-2014-StG-633818-dasQ]
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000415906500008
PublisherAMER PHYSICAL SOC
EI Accession Number20174904494600
EI KeywordsAtoms ; Chains ; Electron transport properties ; Electron tunneling ; Excited states ; Locks (fasteners) ; Magnetoresistance ; Negative resistance ; Spin dynamics ; Spin polarization ; Tunnelling magnetoresistance
EI Classification NumberMechanical Drives:602.1 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Organic Polymers:815.1.1 ; Atomic and Molecular Physics:931.3 ; High Energy Physics:932.1
WOS KeywordSINGLE ; SPINTRONICS ; TRANSPORT
Original Document TypeArticle
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://kms.shanghaitech.edu.cn/handle/2MSLDSTB/10042
Collection物质科学与技术学院_PI研究组_颜世超组
Corresponding AuthorRolf-Pissarczyk, Steffen; Yan, Shichao; Loth, Sebastian
Affiliation1.Max Planck Inst Struct & Dynam Matter, Luruper Chaussee 149, D-22761 Hamburg, Germany
2.Max Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany
3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
4.Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada
5.Univ Stuttgart, Inst Funct Matter & Quantum Technol, Pfaffenwaldring 57, D-70569 Stuttgart, Germany
Corresponding Author AffilicationSchool of Physical Science and Technology
Recommended Citation
GB/T 7714
Rolf-Pissarczyk, Steffen,Yan, Shichao,Malavolti, Luigi,et al. Dynamical Negative Differential Resistance in Antiferromagnetically Coupled Few-Atom Spin Chains[J]. PHYSICAL REVIEW LETTERS,2017,119(21).
APA Rolf-Pissarczyk, Steffen,Yan, Shichao,Malavolti, Luigi,Burgess, Jacob A. J.,McMurtrie, Gregory,&Loth, Sebastian.(2017).Dynamical Negative Differential Resistance in Antiferromagnetically Coupled Few-Atom Spin Chains.PHYSICAL REVIEW LETTERS,119(21).
MLA Rolf-Pissarczyk, Steffen,et al."Dynamical Negative Differential Resistance in Antiferromagnetically Coupled Few-Atom Spin Chains".PHYSICAL REVIEW LETTERS 119.21(2017).
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