Two-dimensional van der Waals ferromagnets have garnered significant attention in spintronics due to their unique properties. Among them, CrTe2 flakes stand out because of their intrinsic in-plane magnetization and Curie temperature above room temperature. Despite these intriguing magnetic properties, the underlying mechanisms remain incompletely understood. In this paper, we meticulously investigate the magnetoresistance (MR) response of CrTe2 flakes to variations in magnetic field and temperature. Below 40 K, CrTe2 exhibits positive MR correlated with carrier density, including a distinctive linear non-saturating MR at 3 K. Above 40 K, the suppression of electron–magnon scattering leads to linear negative MR, which is a characteristic feature of ferromagnetic materials. As the temperature approaches 240 K, thermal excitations gradually increase, and scattering from fluctuating local moments begins to play a significant role, resulting in the nonlinear MR phenomenon. Magnetic anisotropy contributes to anisotropic MR across different current and magnetic field orientations. In low magnetic fields where the magnetic moment is unsaturated, we combined the localized magnetic moment and two-band models to explain the MR behavior, achieving good fitting results. These findings significantly enhance the understanding of CrTe2's ferromagnetic properties and magnetic transport behavior, laying a foundation for its future development and practical applications in spintronics.
Skip Nav Destination
,
,
,
,
,
,
,
,
,
Article navigation
21 October 2024
Research Article|
October 24 2024
The magnetoresistance studies of van der Waals CrTe2 flakes
Yan Feng
;
Yan Feng
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Visualization, Writing – original draft)
1
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China
, Hefei, People's Republic of China
Search for other works by this author on:
Meng Huang
;
Meng Huang
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Resources, Validation)
1
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China
, Hefei, People's Republic of China
Search for other works by this author on:
Shasha Wang
;
Shasha Wang
(Data curation, Formal analysis, Resources)
1
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China
, Hefei, People's Republic of China
Search for other works by this author on:
Junjie Wu
;
Junjie Wu
(Formal analysis, Investigation)
1
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China
, Hefei, People's Republic of China
Search for other works by this author on:
Changlong Wang
;
Changlong Wang
(Data curation, Investigation)
1
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China
, Hefei, People's Republic of China
Search for other works by this author on:
Haige Tan
;
Haige Tan
(Formal analysis, Investigation)
1
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China
, Hefei, People's Republic of China
Search for other works by this author on:
Lizhen Huang
;
Lizhen Huang
(Investigation)
1
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China
, Hefei, People's Republic of China
Search for other works by this author on:
Yalin Lu
;
Yalin Lu
a)
(Funding acquisition, Supervision, Writing – review & editing)
1
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China
, Hefei, People's Republic of China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
Search for other works by this author on:
Haiou Li
;
Haiou Li
a)
(Funding acquisition, Project administration, Resources, Supervision, Validation, Writing – original draft, Writing – review & editing)
2
CAS Key Laboratory of Quantum Information, CAS Center for Excellence in Quantum Information and Quantum Physics, Hefei National Laboratory, University of Science and Technology of China
, Hefei 230088, China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
Search for other works by this author on:
Bin Xiang
Bin Xiang
a)
(Funding acquisition, Investigation, Project administration, Resources, Supervision, Validation, Writing – original draft, Writing – review & editing)
1
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China
, Hefei, People's Republic of China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
Search for other works by this author on:
Yan Feng
1
Meng Huang
1
Shasha Wang
1
Junjie Wu
1
Changlong Wang
1
Haige Tan
1
Lizhen Huang
1
Yalin Lu
1,a)
Haiou Li
2,a)
Bin Xiang
1,a)
1
Department of Materials Science & Engineering, CAS Key Lab of Materials for Energy Conversion, Anhui Laboratory of Advanced Photon Science and Technology, University of Science and Technology of China
, Hefei, People's Republic of China
2
CAS Key Laboratory of Quantum Information, CAS Center for Excellence in Quantum Information and Quantum Physics, Hefei National Laboratory, University of Science and Technology of China
, Hefei 230088, China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
Appl. Phys. Lett. 125, 172401 (2024)
Article history
Received:
June 11 2024
Accepted:
October 16 2024
Citation
Yan Feng, Meng Huang, Shasha Wang, Junjie Wu, Changlong Wang, Haige Tan, Lizhen Huang, Yalin Lu, Haiou Li, Bin Xiang; The magnetoresistance studies of van der Waals CrTe2 flakes. Appl. Phys. Lett. 21 October 2024; 125 (17): 172401. https://doi.org/10.1063/5.0222923
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Diamagnetic levitation of water realized with a simple device consisting of ordinary permanent magnets
Tomoya Naito, Tomoaki Suzuki, et al.
Charge localization in optoelectronic and photocatalytic applications: Computational perspective
Francesco Ambrosio, Julia Wiktor
Related Content
Magnetic skyrmion manipulation in CrTe2/WTe2 2D van der Waals heterostructure
Appl. Phys. Lett. (May 2022)
Magnetic properties manipulation of CrTe2 bilayer through strain and self-intercalation
Appl. Phys. Lett. (October 2021)
Control of the magnetic anisotropy and Curie temperature of monolayer 1T-CrTe2 for room temperature application
Appl. Phys. Lett. (December 2023)
Unfolding band structure and topological property of 3d transition metal doped monolayer CrTe2: A first-principle calculation
AIP Advances (September 2024)
Two-dimensional van der Waals ferromagnetic thin film CrTe2 with high Curie temperature and metallic conductivity
Appl. Phys. Lett. (January 2023)