Massive Dirac fermions and strong Shubnikov–de Haas oscillations in single crystals of the topological insulator Bi2Se3 doped with Sm and Fe

2021 ◽  
Vol 104 (8) ◽  
Author(s):  
Weiyao Zhao ◽  
Chi Xuan Trang ◽  
Qile Li ◽  
Lei Chen ◽  
Zengji Yue ◽  
...  
Keyword(s):  
Single Crystals ◽  
Topological Insulator ◽  
Dirac Fermions ◽  
Shubnikov De Haas Oscillations

Shubnikov–de Haas oscillations in bulk ZrTe5 single crystals: Evidence for a weak topological insulator

2018 ◽  
Vol 97 (11) ◽  
Author(s):  
Yang-Yang Lv ◽  
Bin-Bin Zhang ◽  
Xiao Li ◽  
Kai-Wen Zhang ◽  
Xiang-Bing Li ◽  
...  
Keyword(s):  
Single Crystals ◽  
Topological Insulator ◽  
Shubnikov De Haas Oscillations

scholarly journals Topological Insulator-Based van der Waals Heterostructures for Effective Control of Massless and Massive Dirac Fermions

Nano Letters ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 8047-8053 ◽  
Author(s):  
Su Kong Chong ◽  
Kyu Bum Han ◽  
Akira Nagaoka ◽  
Ryuichi Tsuchikawa ◽  
Renlong Liu ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Van Der Waals ◽  
Effective Control ◽  
Dirac Fermions ◽  
Van Der Waals Heterostructures

Synthesis and humidity sensing behaviour of Cu-intercalated Bi2Se3 topological insulator single crystals

2019 ◽  
Author(s):  
Alfa Sharma ◽  
Kushal Mazumder ◽  
Yogendra Kumar ◽  
Parasharam M. Shirage
Keyword(s):  
Single Crystals ◽  
Topological Insulator ◽  
Humidity Sensing

Effect of Sintering Parameter on the Microstructure and Electrical Properties for Bi2Se3 Topological Insulator Crystals

2013 ◽  
Vol 709 ◽  
pp. 172-175
Author(s):  
Li Lv ◽  
Min Zhang ◽  
Li Qin Yang ◽  
Xin Sheng Yang ◽  
Yong Zhao
Keyword(s):  
Electrical Properties ◽  
Cooling Rate ◽  
Single Crystals ◽  
Carrier Concentration ◽  
Topological Insulator ◽  
Layered Structure ◽  
Phase Structure ◽  
Lattice Parameter ◽  
Holding Time ◽  
Type Conductivity

Single crystals of Bi2Se3 topological insulators have been prepared though melt-grown reaction. The sintering parameters of holding time and cooling rate obviously affect the phase structure and electrical properties. The samples with layered structure can be perpendicular cleaved with (0 0 L) axis. All the samples show n-type conductivity caused by the existence of Se vacancies. For low cooling rate, more Se atoms anti-occupy Bi lattice sites, which decreases c-axis lattice parameter and increases carrier concentration n; high cooling rate increases c and decreases n because of less Se atoms occupying Bi lattice sites. Increasing holding time firstly decreases the ratio of Se atoms occupying Bi lattice sites and then increases it, which gives rise to c firstly increase then decrease and n firstly decrease then increase.

scholarly journals Unexpected mass acquisition of Dirac fermions at the quantum phase transition of a topological insulator

2011 ◽  
Vol 7 (11) ◽  
pp. 840-844 ◽  
Author(s):  
T. Sato ◽  
Kouji Segawa ◽  
K. Kosaka ◽  
S. Souma ◽  
K. Nakayama ◽  
...  
Keyword(s):  
Phase Transition ◽  
Topological Insulator ◽  
Quantum Phase Transition ◽  
Quantum Phase ◽  
Dirac Fermions

scholarly journals Shubnikov–de Haas oscillations in p and n-type topological insulator (Bi x Sb1−x )2Te3

2018 ◽  
Vol 30 (26) ◽  
pp. 265001 ◽  
Author(s):  
Ryota Akiyama ◽  
Kazuki Sumida ◽  
Satoru Ichinokura ◽  
Ryosuke Nakanishi ◽  
Akio Kimura ◽  
...  
Keyword(s):  
Topological Insulator ◽  
Shubnikov De Haas Oscillations

scholarly journals Observation of Kondo behavior in the single crystals of Mn-doped Bi2Se3 topological insulator

AIP Advances ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 045315 ◽  
Author(s):  
R. R. Urkude ◽  
Archna Sagdeo ◽  
R. Rawat ◽  
R. J. Choudhary ◽  
K. Asokan ◽  
...  
Keyword(s):  
Single Crystals ◽  
Topological Insulator ◽  
Mn Doped

Magneto-transport studies on single crystals of Bi1.5Sb0.5Te1.7Se1.3 topological insulator

2019 ◽  
Author(s):  
Abhirami S. ◽  
Shilpam Sharma ◽  
E. P. Amaladass ◽  
Awadhesh Mani
Keyword(s):  
Single Crystals ◽  
Topological Insulator ◽  
Transport Studies
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