Observation of chiral currents at the magnetic domain boundary of a topological insulator
Abstract
A magnetic domain boundary on the surface of a three-dimensional topological insulator is predicted to host a chiral edge state, but direct demonstration is challenging. Here, we used a scanning superconducting quantum interference device to show that current in a magnetized EuS/Bi2Se3 heterostructure flows at the edge when the Fermi level is gate-tuned to the surface band gap. We further induced micron-scale magnetic structures on the heterostructure, and detected a chiral edge current at the magnetic domain boundary. The chirality of the current was determined by magnetization of the surrounding domain and its magnitude by the local chemical potential rather than the applied current. As a result, such magnetic structures, provide a platform for detecting topological magnetoelectric effects and may enable progress in quantum information processing and spintronics.
- Authors:
-
- Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Stanford Univ., Stanford, CA (United States)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1326858
- Report Number(s):
- SLAC-PUB-16714
Journal ID: ISSN 0036-8075
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Science
- Additional Journal Information:
- Journal Volume: 349; Journal Issue: 6251; Journal ID: ISSN 0036-8075
- Publisher:
- AAAS
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Wang, Y. H., Kirtley, J. R., Katmis, F., Jarillo-Herrero, P., Moodera, J. S., and Moler, K. A. Observation of chiral currents at the magnetic domain boundary of a topological insulator. United States: N. p., 2015.
Web. doi:10.1126/science.aaa0508.
Wang, Y. H., Kirtley, J. R., Katmis, F., Jarillo-Herrero, P., Moodera, J. S., & Moler, K. A. Observation of chiral currents at the magnetic domain boundary of a topological insulator. United States. https://doi.org/10.1126/science.aaa0508
Wang, Y. H., Kirtley, J. R., Katmis, F., Jarillo-Herrero, P., Moodera, J. S., and Moler, K. A. Fri .
"Observation of chiral currents at the magnetic domain boundary of a topological insulator". United States. https://doi.org/10.1126/science.aaa0508. https://www.osti.gov/servlets/purl/1326858.
@article{osti_1326858,
title = {Observation of chiral currents at the magnetic domain boundary of a topological insulator},
author = {Wang, Y. H. and Kirtley, J. R. and Katmis, F. and Jarillo-Herrero, P. and Moodera, J. S. and Moler, K. A.},
abstractNote = {A magnetic domain boundary on the surface of a three-dimensional topological insulator is predicted to host a chiral edge state, but direct demonstration is challenging. Here, we used a scanning superconducting quantum interference device to show that current in a magnetized EuS/Bi2Se3 heterostructure flows at the edge when the Fermi level is gate-tuned to the surface band gap. We further induced micron-scale magnetic structures on the heterostructure, and detected a chiral edge current at the magnetic domain boundary. The chirality of the current was determined by magnetization of the surrounding domain and its magnitude by the local chemical potential rather than the applied current. As a result, such magnetic structures, provide a platform for detecting topological magnetoelectric effects and may enable progress in quantum information processing and spintronics.},
doi = {10.1126/science.aaa0508},
journal = {Science},
number = 6251,
volume = 349,
place = {United States},
year = {Fri Aug 28 00:00:00 EDT 2015},
month = {Fri Aug 28 00:00:00 EDT 2015}
}
Free Publicly Available Full Text
Publisher's Version of Record
Other availability
Search WorldCat to find libraries that may hold this journal
Cited by: 14 works
Citation information provided by
Web of Science
Web of Science
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Observation of a Warped Helical Spin Texture in from Circular Dichroism Angle-Resolved Photoemission Spectroscopy
journal, November 2011
- Wang, Y. H.; Hsieh, D.; Pilon, D.
- Physical Review Letters, Vol. 107, Issue 20
Scanning superconducting quantum interference device susceptometry
journal, May 2001
- Gardner, Brian W.; Wynn, Janice C.; Björnsson, Per G.
- Review of Scientific Instruments, Vol. 72, Issue 5
Topological insulators and superconductors
journal, October 2011
- Qi, Xiao-Liang; Zhang, Shou-Cheng
- Reviews of Modern Physics, Vol. 83, Issue 4
Bulk Band Gap and Surface State Conduction Observed in Voltage-Tuned Crystals of the Topological Insulator
journal, May 2011
- Checkelsky, J. G.; Hor, Y. S.; Cava, R. J.
- Physical Review Letters, Vol. 106, Issue 19
Magnetically Defined Qubits on 3D Topological Insulators
journal, September 2013
- Ferreira, Gerson J.; Loss, Daniel
- Physical Review Letters, Vol. 111, Issue 10
Electronic structure and magneto-optical properties of magnetic semiconductors: Europium monochalcogenides
journal, September 2004
- Ghosh, Dipta Bhanu; De, Molly; De, S. K.
- Physical Review B, Vol. 70, Issue 11
DC SQUID series array amplifiers with 120 MHz bandwidth (corrected)
journal, June 2001
- Huber, M. E.; Neil, P. A.; Benson, R. G.
- IEEE Transactions on Appiled Superconductivity, Vol. 11, Issue 2
Thin topological insulator film in a perpendicular magnetic field
journal, May 2011
- Zyuzin, A. A.; Burkov, A. A.
- Physical Review B, Vol. 83, Issue 19
Dynamics of domain-wall Dirac fermions on a topological insulator: A chiral fermion beam splitter
journal, December 2013
- Hammer, René; Pötz, Walter
- Physical Review B, Vol. 88, Issue 23
Observation of Floquet-Bloch States on the Surface of a Topological Insulator
journal, October 2013
- Wang, Y. H.; Steinberg, H.; Jarillo-Herrero, P.
- Science, Vol. 342, Issue 6157, p. 453-457
Images of Edge Current in Quantum Wells
journal, July 2014
- Spanton, Eric M.; Nowack, Katja C.; Du, Lingjie
- Physical Review Letters, Vol. 113, Issue 2
Supersymmetric inhomogeneous semiconductor structures and the nature of a parity anomaly in (2+1) electrodynamics
journal, May 1987
- Pankratov, O. A.
- Physics Letters A, Vol. 121, Issue 7
Experimental Observation of the Quantum Anomalous Hall Effect in a Magnetic Topological Insulator
journal, March 2013
- Chang, C. -Z.; Zhang, J.; Feng, X.
- Science, Vol. 340, Issue 6129
Scale-Invariant Quantum Anomalous Hall Effect in Magnetic Topological Insulators beyond the Two-Dimensional Limit
journal, September 2014
- Kou, Xufeng; Guo, Shih-Ting; Fan, Yabin
- Physical Review Letters, Vol. 113, Issue 13
Emerging weak localization effects on a topological insulator–insulating ferromagnet (Bi Se -EuS) interface
journal, August 2013
- Yang, Qi I.; Dolev, Merav; Zhang, Li
- Physical Review B, Vol. 88, Issue 8
Colloquium: Topological insulators
journal, November 2010
- Hasan, M. Z.; Kane, C. L.
- Reviews of Modern Physics, Vol. 82, Issue 4, p. 3045-3067
Dirac-fermion-mediated ferromagnetism in a topological insulator
journal, August 2012
- Checkelsky, Joseph G.; Ye, Jianting; Onose, Yoshinori
- Nature Physics, Vol. 8, Issue 10
Observation of a large-gap topological-insulator class with a single Dirac cone on the surface
journal, May 2009
- Xia, Y.; Qian, D.; Hsieh, D.
- Nature Physics, Vol. 5, Issue 6, p. 398-402
Imaging currents in HgTe quantum wells in the quantum spin Hall regime
journal, June 2013
- Nowack, Katja C.; Spanton, Eric M.; Baenninger, Matthias
- Nature Materials, Vol. 12, Issue 9
Electron-Spin Polarization in Tunnel Junctions in Zero Applied Field with Ferromagnetic EuS Barriers
journal, August 1988
- Moodera, J. S.; Hao, X.; Gibson, G. A.
- Physical Review Letters, Vol. 61, Issue 5
Reflectionless transport of surface Dirac fermions on topological insulators with induced ferromagnetic domain walls
journal, July 2012
- Wickles, Christian; Belzig, Wolfgang
- Physical Review B, Vol. 86, Issue 3
Electrically Detected Interferometry of Majorana Fermions in a Topological Insulator
journal, May 2009
- Akhmerov, A. R.; Nilsson, Johan; Beenakker, C. W. J.
- Physical Review Letters, Vol. 102, Issue 21
Exchange-Coupling-Induced Symmetry Breaking in Topological Insulators
journal, April 2013
- Wei, Peng; Katmis, Ferhat; Assaf, Badih A.
- Physical Review Letters, Vol. 110, Issue 18
Magnetic proximity effect and spin-orbital texture at the interface
journal, October 2014
- Lee, Alex Taekyung; Han, Myung Joon; Park, Kyungwha
- Physical Review B, Vol. 90, Issue 15
Superconducting Proximity Effect and Majorana Fermions at the Surface of a Topological Insulator
journal, March 2008
- Fu, Liang; Kane, C. L.
- Physical Review Letters, Vol. 100, Issue 9
Topological Insulator Magnetic Tunnel Junctions: Quantum Hall Effect and Fractional Charge via Folding
journal, October 2012
- Meng, Qinglei; Vishveshwara, Smitha; Hughes, Taylor L.
- Physical Review Letters, Vol. 109, Issue 17
Thin-Film Magnetization Dynamics on the Surface of a Topological Insulator
journal, April 2012
- Tserkovnyak, Yaroslav; Loss, Daniel
- Physical Review Letters, Vol. 108, Issue 18
Spin-transfer torque generated by a topological insulator
journal, July 2014
- Mellnik, A. R.; Lee, J. S.; Richardella, A.
- Nature, Vol. 511, Issue 7510
Optimization of Hall bar response to localized magnetic and electric fields
journal, February 2013
- Nabaei, V.; Rajkumar, R. K.; Manzin, A.
- Journal of Applied Physics, Vol. 113, Issue 6
Crossover of the three-dimensional topological insulator Bi2Se3 to the two-dimensional limit
journal, June 2010
- Zhang, Yi; He, Ke; Chang, Cui-Zu
- Nature Physics, Vol. 6, Issue 8
Two-dimensional surface state in the quantum limit of a topological insulator
journal, November 2010
- Analytis, James G.; McDonald, Ross D.; Riggs, Scott C.
- Nature Physics, Vol. 6, Issue 12
Optical and magnetic properties of europium sulphide thin films grown by pulsed laser deposition
journal, September 2005
- O'Mahony, D.; Smith, C.; Budtz-Jorgensen, C.
- Thin Solid Films, Vol. 488, Issue 1-2
Quantized Anomalous Hall Effect in Magnetic Topological Insulators
journal, June 2010
- Yu, R.; Zhang, W.; Zhang, H. -J.
- Science, Vol. 329, Issue 5987
Unpaired Majorana fermions in quantum wires
journal, October 2001
- Kitaev, A. Yu
- Physics-Uspekhi, Vol. 44, Issue 10S
Electronic Transport in Mesoscopic Systems
book, January 2013
- Datta, Supriyo
- Cambridge University Press
Spintronics and spincaloritronics in topological insulators
journal, January 2014
- Yokoyama, Takehito; Murakami, Shuichi
- Physica E: Low-dimensional Systems and Nanostructures, Vol. 55
Erratum: Crossover of the three-dimensional topological insulator Bi2Se3 to the two-dimensional limit
journal, September 2010
- Zhang, Yi; He, Ke; Chang, Cui-Zu
- Nature Physics, Vol. 6, Issue 9
Advanced sensors for scanning SQUID microscopy
conference, July 2013
- Kirtley, J. R.; Gibson, G. W.; Fung, Y. -K. -K.
- 2013 IEEE 14th International Superconductive Electronics Conference (ISEC)
Oscillatory crossover from two-dimensional to three-dimensional topological insulators
journal, January 2010
- Liu, Chao-Xing; Zhang, HaiJun; Yan, Binghai
- Physical Review B, Vol. 81, Issue 4
Works referencing / citing this record:
Chiral and nonchiral edge states in quantum Hall systems with charge density modulation
text, January 2016
- Szumniak, P.; Klinovaja, J.; Loss, D.
- American Physical Society
Chiral and nonchiral edge states in quantum Hall systems with charge density modulation
journal, June 2016
- Szumniak, Paweł; Klinovaja, Jelena; Loss, Daniel
- Physical Review B, Vol. 93, Issue 24
Revival resonant scattering, perfect caustics, and isotropic transport of pseudospin-1 particles
journal, October 2016
- Xu, Hong-Ya; Lai, Ying-Cheng
- Physical Review B, Vol. 94, Issue 16
Dynamical gap generation in topological insulators
journal, April 2016
- Cea, Paolo
- The European Physical Journal B, Vol. 89, Issue 4
Torsional chiral magnetic effect in Weyl semimetal with topological defect
text, January 2015
- Sumiyoshi, Hiroaki; Fujimoto, Satoshi
- arXiv
Inhomogeneous Weyl and Dirac semimetals: Transport in axial magnetic fields and Fermi arc surface states from pseudo Landau levels
text, January 2016
- Grushin, Adolfo G.; Venderbos, Jorn W. F.; Vishwanath, Ashvin
- arXiv
Electric coupling in scanning SQUID measurements
text, January 2015
- Spanton, Eric M.; Rosenberg, Aaron J.; Wang, Yihua H.
- arXiv