High mobility in a van der Waals layered antiferromagnetic metal

Shiming Lei; Jingjing Lin; Yanyu Jia; Mason Gray; Andreas Topp; Gelareh Farahi; Sebastian Klemenz; Tong Gao; Fanny Rodolakis; Jessica L. McChesney; Christian R. Ast; Ali Yazdani; Kenneth S. Burch; Sanfeng Wu; Nai Phuan Ong; Leslie M. Schoop

doi:10.1126/sciadv.aay6407

High mobility in a van der Waals layered antiferromagnetic metal

Shiming Lei, Jingjing Lin, Yanyu Jia, Mason Gray, Andreas Topp, Gelareh Farahi, Sebastian Klemenz, Tong Gao, Fanny Rodolakis, Jessica L. McChesney, Christian R. Ast, Ali Yazdani, Kenneth S. Burch, Sanfeng Wu, Nai Phuan Ong, Leslie M. Schoop

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

94 Scopus citations

Abstract

Van der Waals (vdW) materials with magnetic order have been heavily pursued for fundamental physics as well as for device design. Despite the rapid advances, so far, they are mainly insulating or semiconducting, and none of them has a high electronic mobility—a property that is rare in layered vdW materials in general. The realization of a high-mobility vdW material that also exhibits magnetic order would open the possibility for novel magnetic twistronic or spintronic devices. Here, we report very high carrier mobility in the layered vdW antiferromagnet GdTe₃. The electron mobility is beyond 60,000 cm² V⁻¹ s⁻¹, which is the highest among all known layered magnetic materials, to the best of our knowledge. Among all known vdW materials, the mobility of bulk GdTe₃ is comparable to that of black phosphorus. By mechanical exfoliation, we further demonstrate that GdTe₃ can be exfoliated to ultrathin flakes of three monolayers.

Original language	English (US)
Article number	eaay6407
Journal	Science Advances
Volume	6
Issue number	6
DOIs	https://doi.org/10.1126/sciadv.aay6407
State	Published - Feb 7 2020

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title = "High mobility in a van der Waals layered antiferromagnetic metal",

abstract = "Van der Waals (vdW) materials with magnetic order have been heavily pursued for fundamental physics as well as for device design. Despite the rapid advances, so far, they are mainly insulating or semiconducting, and none of them has a high electronic mobility—a property that is rare in layered vdW materials in general. The realization of a high-mobility vdW material that also exhibits magnetic order would open the possibility for novel magnetic twistronic or spintronic devices. Here, we report very high carrier mobility in the layered vdW antiferromagnet GdTe3. The electron mobility is beyond 60,000 cm2 V−1 s−1, which is the highest among all known layered magnetic materials, to the best of our knowledge. Among all known vdW materials, the mobility of bulk GdTe3 is comparable to that of black phosphorus. By mechanical exfoliation, we further demonstrate that GdTe3 can be exfoliated to ultrathin flakes of three monolayers.",

author = "Shiming Lei and Jingjing Lin and Yanyu Jia and Mason Gray and Andreas Topp and Gelareh Farahi and Sebastian Klemenz and Tong Gao and Fanny Rodolakis and McChesney, {Jessica L.} and Ast, {Christian R.} and Ali Yazdani and Burch, {Kenneth S.} and Sanfeng Wu and Ong, {Nai Phuan} and Schoop, {Leslie M.}",

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doi = "10.1126/sciadv.aay6407",

language = "English (US)",

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AU - Lei, Shiming

AU - Lin, Jingjing

AU - Jia, Yanyu

AU - Gray, Mason

AU - Topp, Andreas

AU - Farahi, Gelareh

AU - Klemenz, Sebastian

AU - Gao, Tong

AU - Rodolakis, Fanny

AU - McChesney, Jessica L.

AU - Ast, Christian R.

AU - Yazdani, Ali

AU - Burch, Kenneth S.

AU - Wu, Sanfeng

AU - Ong, Nai Phuan

AU - Schoop, Leslie M.

PY - 2020/2/7

Y1 - 2020/2/7

N2 - Van der Waals (vdW) materials with magnetic order have been heavily pursued for fundamental physics as well as for device design. Despite the rapid advances, so far, they are mainly insulating or semiconducting, and none of them has a high electronic mobility—a property that is rare in layered vdW materials in general. The realization of a high-mobility vdW material that also exhibits magnetic order would open the possibility for novel magnetic twistronic or spintronic devices. Here, we report very high carrier mobility in the layered vdW antiferromagnet GdTe3. The electron mobility is beyond 60,000 cm2 V−1 s−1, which is the highest among all known layered magnetic materials, to the best of our knowledge. Among all known vdW materials, the mobility of bulk GdTe3 is comparable to that of black phosphorus. By mechanical exfoliation, we further demonstrate that GdTe3 can be exfoliated to ultrathin flakes of three monolayers.

AB - Van der Waals (vdW) materials with magnetic order have been heavily pursued for fundamental physics as well as for device design. Despite the rapid advances, so far, they are mainly insulating or semiconducting, and none of them has a high electronic mobility—a property that is rare in layered vdW materials in general. The realization of a high-mobility vdW material that also exhibits magnetic order would open the possibility for novel magnetic twistronic or spintronic devices. Here, we report very high carrier mobility in the layered vdW antiferromagnet GdTe3. The electron mobility is beyond 60,000 cm2 V−1 s−1, which is the highest among all known layered magnetic materials, to the best of our knowledge. Among all known vdW materials, the mobility of bulk GdTe3 is comparable to that of black phosphorus. By mechanical exfoliation, we further demonstrate that GdTe3 can be exfoliated to ultrathin flakes of three monolayers.

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High mobility in a van der Waals layered antiferromagnetic metal

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