Electronic fingerprints of Cr and V dopants in the topological insulator Sb2Te3

被引：20

作者：

Zhang, Wenhan ^{[1
]}

West, Damien ^{[2
]}

Lee, Seng Huat ^{[3
,4
]}

Qiu, Yunsheng ^{[3
]}

Chang, Cui-Zu ^{[5
,6
]}

Moodera, Jagadeesh S. ^{[6
]}

San Hor, Yew ^{[3
]}

Zhang, Shengbai ^{[2
]}

Wu, Weida ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

[2] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astronomy, Troy, NY 12180 USA

[3] Missouri Univ Sci & Technol, Dept Phys, Rolla, MO 65409 USA

[4] Penn State Univ, Mat Res Inst, Crystal Consortium 2D, University Pk, PA 16802 USA

[5] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[6] MIT, Francis Bitter Magnet Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW B | 2018年 / 98卷 / 11期

关键词：

FERROMAGNETISM; STATE;

D O I：

10.1103/PhysRevB.98.115165

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

By combining scanning tunneling microscopy/spectroscopy and first-principles calculations, we systematically study the local electronic states of magnetic dopants V and Cr in the topological insulator (TI) Sb2Te3. Spectroscopic imaging shows diverse local defect states between Cr and V, which agree with our first-principle calculations. The unique spectroscopic features of V and Cr dopants provide electronic fingerprints for the codoped magnetic TI samples with the enhanced quantum anomalous Hall effect. Our results also facilitate the exploration of the underlying mechanism of the enhanced quantum anomalous Hall temperature in Cr/V codoped TIs.

引用

页数：6

共 50 条

[1] Codoping of Sb2Te3 thin films with V and Cr
Duffy, L. B.
Figueroa, A. I.
van der Laan, G.
Hesjedal, T.
PHYSICAL REVIEW MATERIALS, 2017, 1 (06):
[2] Electronic and magnetic properties of H-terminated graphene nanoribbons deposited on the topological insulator Sb2Te3
Zhang, Wei
Hajiheidari, Farideh
Li, Yan
Mazzarello, Riccardo
SCIENTIFIC REPORTS, 2016, 6
[3] Magnetic correlations in the magnetic topological insulator (Cr, Sb)2Te3
Steinke, N-J
Zhang, S. L.
Baker, P. J.
Duffy, L. B.
Kronast, F.
Krieger, J.
Salman, Z.
Prokscha, T.
Suter, A.
Langridge, S.
van der Laan, G.
Hesjedal, T.
PHYSICAL REVIEW B, 2022, 106 (22)
[4] High photodetection performance on vertically oriented topological insulator Sb2Te3/Silicon heterostructure
Li, Mingze
Wang, Zhenhua
Han, Dan
Shi, Xudong
Li, Tingting
Gao, Xuan P. A.
Zhang, Zhidong
JOURNAL OF SOLID STATE CHEMISTRY, 2022, 315
[5] Impurity states in the magnetic topological insulator V:(Bi,Sb)2Te3
Peixoto, Thiago R. F.
Bentmann, Hendrik
Schreyeck, Steffen
Winnerlein, Martin
Seibel, Christoph
Maass, Henriette
Al-Baidhani, Mohammed
Treiber, Katharina
Schatz, Sonja
Grauer, Stefan
Gould, Charles
Brunner, Karl
Ernst, Arthur
Molenkamp, Laurens W.
Reinert, Friedrich
PHYSICAL REVIEW B, 2016, 94 (19)
[6] Topological properties of layered MnSb2Te4/Sb2Te3 heterojunctions
Liu Shui-Qing
Li Shu-Zong
Si Jun-Shan
Zhang Wei-Bing
SCIENTIA SINICA-PHYSICA MECHANICA & ASTRONOMICA, 2023, 53 (11)
[7] Quantum Oscillations in Ferromagnetic (Sb, V)2Te3 Topological Insulator Thin Films
Zhang, Liguo
Helm, Toni
Lin, Haicheng
Fan, Fengren
Le, Congcong
Sun, Yan
Markou, Anastasios
Felser, Claudia
ADVANCED MATERIALS, 2021, 33 (41)
[8] Magnetic proximity coupling to Cr-doped Sb2Te3 thin films
Duffy, L. B.
Figueroa, A. I.
Gladczuk, L.
Steinke, N. -J.
Kummer, K.
van der Laan, G.
Hesjedal, T.
PHYSICAL REVIEW B, 2017, 95 (22)
[9] Magnetic profile of proximity-coupled (Dy,Bi)2Te3/(Cr,Sb)2Te3 topological insulator heterostructures
Duffy, L. B.
Steinke, N-J
Burn, D. M.
Frisk, A.
Lari, L.
Kuerbanjiang, B.
Lazarov, V. K.
van der Laan, G.
Langridge, S.
Hesjedal, T.
PHYSICAL REVIEW B, 2019, 100 (05)
[10] Comparing magnetic ground-state properties of the V- and Cr-doped topological insulator (Bi, Sb)2Te3
Tcakaev, A.
Zabolotnyy, V. B.
Green, R. J.
Peixoto, T. R. F.
Stier, F.
Dettbarn, M.
Schreyeck, S.
Winnerlein, M.
Vidal, R. Crespo
Schatz, S.
Vasili, H. B.
Valvidares, M.
Brunner, K.
Gould, C.
Bentmann, H.
Reinert, F.
Molenkamp, L. W.
Hinkov, V
PHYSICAL REVIEW B, 2020, 101 (04)

← 1 2 3 4 5 →