Superposition of Emergent Monopole and Antimonopole in CoTb Thin Films

Yao Guang; Kejing Ran; Junwei Zhang; Yizhou Liu; Senfu Zhang; Xuepeng Qiu; Yong Peng; Xixiang Zhang; Markus Weigand; Joachim Gräfe; Gisela Schütz; Gerrit van der Laan; Thorsten Hesjedal; Shilei Zhang; Guoqiang Yu; Xiufeng Han

doi:10.1103/physrevlett.127.217201

Superposition of Emergent Monopole and Antimonopole in CoTb Thin Films

Yao Guang, Kejing Ran, Junwei Zhang, Yizhou Liu, Senfu Zhang, Xuepeng Qiu, Yong Peng, Xixiang Zhang, Markus Weigand, Joachim Gräfe, Gisela Schütz, Gerrit van der Laan, Thorsten Hesjedal, Shilei Zhang, Guoqiang Yu, Xiufeng Han

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

A three-dimensional singular point that consists of two oppositely aligned emergent monopoles is identified in continuous CoTb thin films, as confirmed by complementary techniques of resonant elastic x-ray scattering, Lorentz transmission electron microscopy, and scanning transmission x-ray microscopy. This new type of topological defect can be regarded as a superposition of an emergent magnetic monopole and an antimonopole, around which the source and drain of the magnetic flux overlap in space. We experimentally prove that the observed spin twist seen in Lorentz transmission electron microscopy reveals the cross section of the superimposed three-dimensional structure, providing a straightforward strategy for the observation of magnetic singularities. Such a quasiparticle provides an excellent platform for studying the rich physics of emergent electromagnetism.

Original language	English (US)
Journal	Physical Review Letters
Volume	127
Issue number	21
DOIs	https://doi.org/10.1103/physrevlett.127.217201
State	Published - Nov 16 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-11-25
Acknowledged KAUST grant number(s): ORS2019-CRG8-4081
Acknowledgements: This work was supported by the National Key Research and Development Program of China (Grants No. 2017YFA0206200 and No. 2020YFA0309400), the Beijing Natural Science Foundation (Grant No. Z190009), the Science Center of the National Science Foundation
of China (Grant No. 52088101), the National Natural Science Foundation of China (Grants No. 11874409, No. 51831012, No. 12074257, No. 11804380, and No. 12004249), the Shanghai Sailing Program (Grant No. 20YF1430600), and the K. C. Wong Education Foundation (Grant No. GJTD- 2019-14). X. X. Z acknowledges the support from King Abdullah University of Science and Technology with funding numbers: ORS2019-CRG8-4081. T. H. acknowledges support from the Engineering and Physical Science Research Council (UK) under Grant No. EP/N032128/1. Diamond Light Source is acknowledged for beam time on I10 under proposal number MM-23785.

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1103/physrevlett.127.217201

Cite this

@article{e6fa8df24e004778a8cc3f055721389b,

title = "Superposition of Emergent Monopole and Antimonopole in CoTb Thin Films",

abstract = "A three-dimensional singular point that consists of two oppositely aligned emergent monopoles is identified in continuous CoTb thin films, as confirmed by complementary techniques of resonant elastic x-ray scattering, Lorentz transmission electron microscopy, and scanning transmission x-ray microscopy. This new type of topological defect can be regarded as a superposition of an emergent magnetic monopole and an antimonopole, around which the source and drain of the magnetic flux overlap in space. We experimentally prove that the observed spin twist seen in Lorentz transmission electron microscopy reveals the cross section of the superimposed three-dimensional structure, providing a straightforward strategy for the observation of magnetic singularities. Such a quasiparticle provides an excellent platform for studying the rich physics of emergent electromagnetism.",

author = "Yao Guang and Kejing Ran and Junwei Zhang and Yizhou Liu and Senfu Zhang and Xuepeng Qiu and Yong Peng and Xixiang Zhang and Markus Weigand and Joachim Gr{\"a}fe and Gisela Sch{\"u}tz and {van der Laan}, Gerrit and Thorsten Hesjedal and Shilei Zhang and Guoqiang Yu and Xiufeng Han",

note = "KAUST Repository Item: Exported on 2021-11-25 Acknowledged KAUST grant number(s): ORS2019-CRG8-4081 Acknowledgements: This work was supported by the National Key Research and Development Program of China (Grants No. 2017YFA0206200 and No. 2020YFA0309400), the Beijing Natural Science Foundation (Grant No. Z190009), the Science Center of the National Science Foundation of China (Grant No. 52088101), the National Natural Science Foundation of China (Grants No. 11874409, No. 51831012, No. 12074257, No. 11804380, and No. 12004249), the Shanghai Sailing Program (Grant No. 20YF1430600), and the K. C. Wong Education Foundation (Grant No. GJTD- 2019-14). X. X. Z acknowledges the support from King Abdullah University of Science and Technology with funding numbers: ORS2019-CRG8-4081. T. H. acknowledges support from the Engineering and Physical Science Research Council (UK) under Grant No. EP/N032128/1. Diamond Light Source is acknowledged for beam time on I10 under proposal number MM-23785.",

year = "2021",

month = nov,

day = "16",

doi = "10.1103/physrevlett.127.217201",

language = "English (US)",

volume = "127",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "21",

}

TY - JOUR

T1 - Superposition of Emergent Monopole and Antimonopole in CoTb Thin Films

AU - Guang, Yao

AU - Ran, Kejing

AU - Zhang, Junwei

AU - Liu, Yizhou

AU - Zhang, Senfu

AU - Qiu, Xuepeng

AU - Peng, Yong

AU - Zhang, Xixiang

AU - Weigand, Markus

AU - Gräfe, Joachim

AU - Schütz, Gisela

AU - van der Laan, Gerrit

AU - Hesjedal, Thorsten

AU - Zhang, Shilei

AU - Yu, Guoqiang

AU - Han, Xiufeng

N1 - KAUST Repository Item: Exported on 2021-11-25 Acknowledged KAUST grant number(s): ORS2019-CRG8-4081 Acknowledgements: This work was supported by the National Key Research and Development Program of China (Grants No. 2017YFA0206200 and No. 2020YFA0309400), the Beijing Natural Science Foundation (Grant No. Z190009), the Science Center of the National Science Foundation of China (Grant No. 52088101), the National Natural Science Foundation of China (Grants No. 11874409, No. 51831012, No. 12074257, No. 11804380, and No. 12004249), the Shanghai Sailing Program (Grant No. 20YF1430600), and the K. C. Wong Education Foundation (Grant No. GJTD- 2019-14). X. X. Z acknowledges the support from King Abdullah University of Science and Technology with funding numbers: ORS2019-CRG8-4081. T. H. acknowledges support from the Engineering and Physical Science Research Council (UK) under Grant No. EP/N032128/1. Diamond Light Source is acknowledged for beam time on I10 under proposal number MM-23785.

PY - 2021/11/16

Y1 - 2021/11/16

N2 - A three-dimensional singular point that consists of two oppositely aligned emergent monopoles is identified in continuous CoTb thin films, as confirmed by complementary techniques of resonant elastic x-ray scattering, Lorentz transmission electron microscopy, and scanning transmission x-ray microscopy. This new type of topological defect can be regarded as a superposition of an emergent magnetic monopole and an antimonopole, around which the source and drain of the magnetic flux overlap in space. We experimentally prove that the observed spin twist seen in Lorentz transmission electron microscopy reveals the cross section of the superimposed three-dimensional structure, providing a straightforward strategy for the observation of magnetic singularities. Such a quasiparticle provides an excellent platform for studying the rich physics of emergent electromagnetism.

AB - A three-dimensional singular point that consists of two oppositely aligned emergent monopoles is identified in continuous CoTb thin films, as confirmed by complementary techniques of resonant elastic x-ray scattering, Lorentz transmission electron microscopy, and scanning transmission x-ray microscopy. This new type of topological defect can be regarded as a superposition of an emergent magnetic monopole and an antimonopole, around which the source and drain of the magnetic flux overlap in space. We experimentally prove that the observed spin twist seen in Lorentz transmission electron microscopy reveals the cross section of the superimposed three-dimensional structure, providing a straightforward strategy for the observation of magnetic singularities. Such a quasiparticle provides an excellent platform for studying the rich physics of emergent electromagnetism.

UR - http://hdl.handle.net/10754/673756

UR - https://link.aps.org/doi/10.1103/PhysRevLett.127.217201

U2 - 10.1103/physrevlett.127.217201

DO - 10.1103/physrevlett.127.217201

M3 - Article

SN - 0031-9007

VL - 127

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

ER -

Superposition of Emergent Monopole and Antimonopole in CoTb Thin Films

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this