Chirality-Driven Orbital Angular Momentum and Circular Dichroism in CoSi

被引：7

作者：

Brinkman, Stefanie Suzanne ^{[1
]}

Tan, Xin Liang ^{[1
,2
,3
]}

Brekke, Bjornulf ^{[1
]}

Mathisen, Anders Christian ^{[1
]}

Finnseth, Oyvind ^{[4
]}

Schenk, Richard Justin ^{[1
]}

Hagiwara, Kenta ^{[2
,3
]}

Huang, Meng-Jie ^{[5
,6
,7
]}

Buck, Jens ^{[5
,6
,8
]}

Kallaene, Matthias ^{[5
,6
,8
]}

Hoesch, Moritz ^{[7
]}

Rossnagel, Kai ^{[5
,6
,7
,8
]}

Yang, Kui-Hon Ou ^{[9
]}

Lin, Minn-Tsong ^{[9
,10
,11
]}

Shu, Guo-Jiun ^{[1
,2
,12
]}

Chen, Ying-Jiun ^{[2
,3
,13
,14
]}

Tusche, Christian ^{[2
,3
]}

Bentmann, Hendrik ^{[1
]}

机构：

[1] Norwegian Univ Sci & Technol, Ctr Quantum Spintron, Dept Phys, N-7491 Trondheim, Norway

[2] Forschungszentrum Julich, Peter Grunberg Inst PGI 6, D-52425 Julich, Germany

[3] Univ Duisburg Essen, Fac Phys, D-47057 Duisburg, Germany

[4] Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, N-7491 Trondheim, Norway

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

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

[7] Deutsch Elektronen Synchrotron DESY, Ruprecht Haensel Lab, Notkestr 85, D-22607 Hamburg, Germany

[8] Christian Albrechts Univ Kiel, Inst Experimentelle & Angew Phys, D-24098 Kiel, Germany

[9] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

[10] Acad Sinica, Inst Atom & Mol Sci, Taipei 10617, Taiwan

[11] Acad Sinica, Res Ctr Appl Sci, Taipei 11529, Taiwan

[12] Natl Taipei Univ Technol, Dept Mat & Mineral Resources Engn, Taipei 10608, Taiwan

[13] Forschungszentrum Julich, Ernst Ruska Ctr Microscopy & Spect Electrons, D-52425 Julich, Germany

[14] Forschungszentrum Julich, Peter Grunberg Inst, D-52425 Julich, Germany

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 132卷 / 19期

关键词：

SPIN SELECTIVITY; SURFACE; SEMIMETAL;

D O I：

10.1103/PhysRevLett.132.196402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Chiral crystals and molecules were recently predicted to form an intriguing platform for unconventional orbital physics. Here, we report the observation of chirality-driven orbital textures in the bulk electronic structure of CoSi, a prototype member of the cubic B20 family of chiral crystals. Using circular dichroism in soft x-ray angle -resolved photoemission, we demonstrate the formation of a bulk orbital -angularmomentum texture and monopolelike orbital -momentum locking that depends on crystal handedness. We introduce the intrinsic chiral circular dichroism, ic CD, as a differential photoemission observable and a natural probe of chiral electron states. Our findings render chiral crystals promising for spin-orbitronics applications.

引用

页数：7

共 60 条

[1] Orbital Rashba Effect as a Platform for Robust Orbital Photocurrents [J].

Adamantopoulos, T. ;

Merte, M. ;

Go, D. ;

Freimuth, F. ;

Bluegel, S. ;

Mokrousov, Y. .

PHYSICAL REVIEW LETTERS, 2024, 132 (07)

[2]

aps, US, DOI [10.1103/PhysRevLett.132.196402, DOI 10.1103/PHYSREVLETT.132.196402]

[3] Emergent quantum confinement at topological insulator surfaces [J].

Bahramy, M. S. ;

King, P. D. C. ;

de la Torre, A. ;

Chang, J. ;

Shi, M. ;

Patthey, L. ;

Balakrishnan, G. ;

Hofmann, Ph. ;

Arita, R. ;

Nagaosa, N. ;

Baumberger, F. .

NATURE COMMUNICATIONS, 2012, 3

[4] 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)

[5] Photoexcitation circular dichroism in chiral molecules [J].

Beaulieu, S. ;

Comby, A. ;

Descamps, D. ;

Fabre, B. ;

Garcia, G. A. ;

Geneaux, R. ;

Harvey, A. G. ;

Legare, F. ;

Masin, Z. ;

Nahon, L. ;

Ordonez, A. F. ;

Petit, S. ;

Pons, B. ;

Mairesse, Y. ;

Smirnova, O. ;

Blanchet, V. .

NATURE PHYSICS, 2018, 14 (05) :484-+

[6] Universality of photoelectron circular dichroism in the photoionization of chiral molecules [J].

Beaulieu, S. ;

Ferre, A. ;

Geneaux, R. ;

Canonge, R. ;

Descamps, D. ;

Fabre, B. ;

Fedorov, N. ;

Legare, F. ;

Petit, S. ;

Ruchon, T. ;

Blanchet, V. ;

Mairesse, Y. ;

Pons, B. .

NEW JOURNAL OF PHYSICS, 2016, 18

[7] Unveiling the orbital texture of 1T-TiTe2 using intrinsic linear dichroism in multidimensional photoemission spectroscopy [J].

Beaulieu, Samuel ;

Schueler, Michael ;

Schusser, Jakub ;

Dong, Shuo ;

Pincelli, Tommaso ;

Maklar, Julian ;

Neef, Alexander ;

Reinert, Friedrich ;

Wolf, Martin ;

Rettig, Laurenz ;

Minar, Jan ;

Ernstorfer, Ralph .

NPJ QUANTUM MATERIALS, 2021, 6 (01)

[8] Profiling spin and orbital texture of a topological insulator in full momentum space [J].

Bentmann, H. ;

Maass, H. ;

Braun, J. ;

Seibel, C. ;

Kokh, K. A. ;

Tereshchenko, O. E. ;

Schreyeck, S. ;

Brunner, K. ;

Molenkamp, L. W. ;

Miyamoto, K. ;

Arita, M. ;

Shimada, K. ;

Okuda, T. ;

Kirschner, J. ;

Tusche, C. ;

Ebert, H. ;

Minar, J. ;

Reinert, F. .

PHYSICAL REVIEW B, 2021, 103 (16)

[9] 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)

[10] Asymmetry in photoelectron emission from chiral molecules induced by circularly polarized light [J].

Böwering, N ;

Lischke, T ;

Schmidtke, B ;

Müller, N ;

Khalil, T ;

Heinzmann, U .

PHYSICAL REVIEW LETTERS, 2001, 86 (07) :1187-1190

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