High Spin Hall Conductivity in Large‐Area Type‐II Dirac Semimetal PtTe 2

2020 ◽  
Vol 32 (17) ◽  
pp. 2000513 ◽  
Author(s):  
Hongjun Xu ◽  
Jinwu Wei ◽  
Hengan Zhou ◽  
Jiafeng Feng ◽  
Teng Xu ◽  
...  
Keyword(s):  
High Spin ◽  
Hall Conductivity ◽  
Type Ii ◽  
Large Area ◽  
Dirac Semimetal ◽  
Spin Hall Conductivity

scholarly journals Current‐Induced Magnetization Switching by the High Spin Hall Conductivity α‐W

2019 ◽  
Vol 13 (11) ◽  
pp. 1900408 ◽  
Author(s):  
Wei-Bang Liao ◽  
Tian-Yue Chen ◽  
Yari Ferrante ◽  
Stuart S. P. Parkin ◽  
Chi-Feng Pai
Keyword(s):  
High Spin ◽  
Hall Conductivity ◽  
Magnetization Switching ◽  
Spin Hall Conductivity

scholarly journals Prediction of crossing nodal-lines and large intrinsic spin Hall conductivity in topological Dirac semimetal Ta3As family

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Wenjie Hou ◽  
Jian Liu ◽  
Xi Zuo ◽  
Jian Xu ◽  
Xueying Zhang ◽  
...  
Keyword(s):  
Fermi Level ◽  
Hall Conductivity ◽  
Spin Orbit Coupling ◽  
First Principles Calculations ◽  
Practical Applications ◽  
Nodal Lines ◽  
Dirac Semimetal ◽  
Topological Semimetals ◽  
The Ideal ◽  
Spin Hall Conductivity

AbstractTopological insulators (TIs) are considered as ideal platforms for generating large spin Hall conductivity (SHC), however, the bulk carrier problem, which is unavoidable in TIs, hinders their practical applications. Recently, topological semimetals (TSMs) have been proposed to achieve large SHC to replace TIs. However, the ideal TSM candidates with large SHC are still lacking. In terms of first-principles calculations, we predict that Ta3As family compounds exhibit complex crossing nodal-lines (CNL) properties in absence of the spin-orbit coupling (SOC). However, they transfer to Dirac TSMs under the influence of strong SOC, and present large SHC around Fermi level in particular. Remarkably, the SHC value of Ta3Y (Y = As, Sb, Bi) is around 1500–1700 $$(\hbar /e)({\mathrm{{\Omega}}} \cdot {\mathrm{cm}})^{ - 1}$$ ( ħ / e ) ( Ω ⋅ cm ) − 1 , which is comparable to noble metal Pt and much larger than TIs, Weyl TSMs, and 4d/5d transition metals. Our work not only suggests a kind of TSM family with interesting Dirac CNL around Fermi level, but also paves the way for searching large intrinsic SHC materials in complex CNL TSM systems.

scholarly journals Observation of Negative Terahertz Photoconductivity in Large Area Type-II Dirac Semimetal PtTe2

2021 ◽  
Vol 126 (22) ◽  
Author(s):  
Peng Suo ◽  
Huiyun Zhang ◽  
Shengnan Yan ◽  
Wenjie Zhang ◽  
Jibo Fu ◽  
...  
Keyword(s):  
Type Ii ◽  
Large Area ◽  
Dirac Semimetal

scholarly journals Kubo–Bastin approach for the spin Hall conductivity of decorated graphene

2D Materials ◽  
2016 ◽  
Vol 3 (2) ◽  
pp. 024007 ◽  
Author(s):  
Jose H Garcia ◽  
Tatiana G Rappoport
Keyword(s):  
Hall Conductivity ◽  
Spin Hall Conductivity

Realizing topological states in type-II Dirac semimetal PdTe2: an angle-resolved photoemission and quantum oscillations study

2021 ◽  
Vol 45 (1) ◽  
Author(s):  
Jadupati Nag ◽  
Anshu Kataria ◽  
Ravi Prakash Singh ◽  
Soma Banik ◽  
Aftab Alam ◽  
...  
Keyword(s):  
Type Ii ◽  
Quantum Oscillations ◽  
Dirac Semimetal ◽  
Topological States

Experimental evaluation of the spin-Hall conductivity in Si-doped GaAs

2013 ◽  
Vol 88 (12) ◽  
Author(s):  
F. Bottegoni ◽  
A. Ferrari ◽  
G. Isella ◽  
M. Finazzi ◽  
F. Ciccacci
Keyword(s):  
Experimental Evaluation ◽  
Hall Conductivity ◽  
Si Doped ◽  
Spin Hall Conductivity

scholarly journals Band Structure Perfection and Superconductivity in Type‐II Dirac Semimetal Ir 1− x Pt x Te 2

2018 ◽  
Vol 30 (35) ◽  
pp. 1801556 ◽  
Author(s):  
Fucong Fei ◽  
Xiangyan Bo ◽  
Pengdong Wang ◽  
Jianghua Ying ◽  
Jian Li ◽  
...  
Keyword(s):  
Band Structure ◽  
Type Ii ◽  
Dirac Semimetal
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