Imaging Orbital Vortex Lines in Three-Dimensional Momentum Space

被引：1

作者：

Figgemeier, T. ^{[1
]}

Uenzelmann, M. ^{[1
]}

Eck, P. ^{[2
,3
]}

Schusser, J. ^{[1
,4
]}

Crippa, L. ^{[2
,3
]}

Neu, J. N. ^{[5
,6
]}

Geldiyev, B. ^{[1
]}

Kagerer, P. ^{[1
]}

Buck, J. ^{[7
,8
,9
]}

Kallaene, M. ^{[7
,8
,9
]}

Hoesch, M. ^{[10
]}

Rossnagel, K. ^{[7
,8
,9
,10
]}

Siegrist, T. ^{[5
,6
]}

Lim, L. -k. ^{[11
]}

Moessner, R. ^{[12
,13
]}

Sangiovanni, G. ^{[2
,3
]}

Di Sante, D. ^{[14
]}

Reinert, F. ^{[1
]}

Bentmann, H. ^{[1
,15
]}

机构：

[1] Univ Wurzburg, Expt Phys & Wurzburg Dresden Cluster Excellence Ct, D-97074 Wurzburg, Germany

[2] Univ Wurzburg, ITPA, D-97074 Wurzburg, Germany

[3] Univ Wurzburg, Wurzburg Dresden Cluster Excellence Ct Qmat, D-97074 Wurzburg, Germany

[4] Univ West Bohemia Pilsen, New Technol Res Ctr, Plzen 30614, Czech Republic

[5] FAMU FSU, Dept Chem & Biomed Engn, Coll Engn, Tallahassee, FL 32310 USA

[6] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[7] Christian Albrechts Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany

[8] Univ Kiel, Ruprecht Haensel Lab, D-24098 Kiel, Germany

[9] DESY, D-22607 Hamburg, Germany

[10] Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany

[11] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Zhejiang, Peoples R China

[12] Max Planck Inst Phys Komplexer Syst, Noethnitzer Str 38, D-01187 Dresden, Germany

[13] Wurzburg Dresden Cluster Excellence Ct Qmat, D-01187 Dresden, Germany

[14] Univ Bologna, Dept Phys & Astron, I-40127 Bologna, Italy

[15] NTNU Norwegian Univ Sci & Technol, Ctr Quantum Spintron, Dept Phys, NO-7491 Trondheim, Norway

来源：

PHYSICAL REVIEW X | 2025年 / 15卷 / 01期

基金：

新加坡国家研究基金会; 美国国家科学基金会;

关键词：

SEMIMETAL; SURFACE;

D O I：

10.1103/PhysRevX.15.011032

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the experimental discovery of orbital vortex lines in the three-dimensional (3D) band structure of a topological semimetal. Combining linear and circular dichroism in soft x-ray angle-resolved photoemission (SX-ARPES) with first-principles theory, we image the winding of atomic orbital angular momentum, thereby revealing-and determining the location of-lines of vorticity in full 3D momentum space. We determine the core of the orbital angular momentum vortex to host an almost movable, twofold, spin-degenerate Weyl nodal line, a topological feature predicted to occur in certain nonsymmorphic crystals. These results establish bimodal dichroism in SX-ARPES as a robust approach to trace 3D orbital textures. Our findings constitute the first imaging of nontrivial quantum-phase winding at line nodes and may pave the way to new orbitronic phenomena in quantum materials.

引用

页数：10

共 61 条

[1] THE MAGNETIC PROPERTIES OF SUPERCONDUCTING ALLOYS [J].

ABRIKOSOV, AA .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1957, 2 (03) :199-208

[2] Weyl and Dirac semimetals in three-dimensional solids [J].

Armitage, N. P. ;

Mele, E. J. ;

Vishwanath, Ashvin .

REVIEWS OF MODERN PHYSICS, 2018, 90 (01)

[3] Revealing Hidden Orbital Pseudospin Texture with Time-Reversal Dichroism in Photoelectron Angular Distributions [J].

Beaulieu, S. ;

Schusser, J. ;

Dong, S. ;

Schuler, M. ;

Pincelli, T. ;

Dendzik, M. ;

Maklar, J. ;

Neef, A. ;

Ebert, H. ;

Hricovini, K. ;

Wolf, M. ;

Braun, J. ;

Rettig, L. ;

Minar, J. ;

Ernstorfer, R. .

PHYSICAL REVIEW LETTERS, 2020, 125 (21)

[4] Strong Linear Dichroism in Spin-Polarized Photoemission from Spin-Orbit-Coupled Surface States [J].

Bentmann, H. ;

Maass, H. ;

Krasovskii, E. E. ;

Peixoto, T. R. F. ;

Seibel, C. ;

Leandersson, M. ;

Balasubramanian, T. ;

Reinert, F. .

PHYSICAL REVIEW LETTERS, 2017, 119 (10)

[5] Orbitronics:: The intrinsic orbital current in p-doped silicon -: art. no. 066601 [J].

Bernevig, BA ;

Hughes, TL ;

Zhang, SC .

PHYSICAL REVIEW LETTERS, 2005, 95 (06)

[6] PROJECTOR AUGMENTED-WAVE METHOD [J].

BLOCHL, PE .

PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979

[7] Beyond Dirac and Weyl fermions: Unconventional quasiparticles in conventional crystals [J].

Bradlyn, Barry ;

Cano, Jennifer ;

Wang, Zhijun ;

Vergniory, M. G. ;

Felser, C. ;

Cava, R. J. ;

Bernevig, B. Andrei .

SCIENCE, 2016, 353 (6299)

[8] Chirality-Driven Orbital Angular Momentum and Circular Dichroism in CoSi [J].

Brinkman, Stefanie Suzanne ;

Tan, Xin Liang ;

Brekke, Bjornulf ;

Mathisen, Anders Christian ;

Finnseth, Oyvind ;

Schenk, Richard Justin ;

Hagiwara, Kenta ;

Huang, Meng-Jie ;

Buck, Jens ;

Kallaene, Matthias ;

Hoesch, Moritz ;

Rossnagel, Kai ;

Yang, Kui-Hon Ou ;

Lin, Minn-Tsong ;

Shu, Guo-Jiun ;

Chen, Ying-Jiun ;

Tusche, Christian ;

Bentmann, Hendrik .

PHYSICAL REVIEW LETTERS, 2024, 132 (19)

[9] Topological nodal semimetals [J].

Burkov, A. A. ;

Hook, M. D. ;

Balents, Leon .

PHYSICAL REVIEW B, 2011, 84 (23)

[10] Nodal-chain metals [J].

Bzdusek, Tomas ;

Wu, QuanSheng ;

Ruegg, Andreas ;

Sigrist, Manfred ;

Soluyanov, Alexey A. .

NATURE, 2016, 538 (7623) :75-78

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