Coexistence of fully spin-polarized Weyl nodal loop, nodal surface, and Dirac point in a family of quasi-one-dimensional half-metals

2021 ◽  
Vol 103 (8) ◽  
Author(s):  
Tingli He ◽  
Ying Liu ◽  
Lu Tian ◽  
Xiaoming Zhang ◽  
Weizhen Meng ◽  
...  
Keyword(s):  
Dirac Point ◽  
One Dimensional ◽  
Nodal Surface ◽  
Half Metals ◽  
Spin Polarized

Novel One-Dimensional Organometallic Half Metals: Vanadium-Cyclopentadienyl, Vanadium-Cyclopentadienyl-Benzene, and Vanadium-Anthracene Wires

Nano Letters ◽  
2008 ◽  
Vol 8 (11) ◽  
pp. 3640-3644 ◽  
Author(s):  
Lu Wang ◽  
Zixing Cai ◽  
Junyu Wang ◽  
Jing Lu ◽  
Guangfu Luo ◽  
...  
Keyword(s):  
One Dimensional ◽  
Half Metals

scholarly journals Fully spin-polarized double-Weyl fermions with type-III dispersion in the quasi-one-dimensional materials X2RhF6 ( X=K , Rb, Cs)

2020 ◽  
Vol 102 (19) ◽  
Author(s):  
Lei Jin ◽  
Xiaoming Zhang ◽  
Ying Liu ◽  
Xuefang Dai ◽  
Liying Wang ◽  
...  
Keyword(s):  
One Dimensional ◽  
Type Iii ◽  
Spin Polarized ◽  
Weyl Fermions

EFFECTIVE MOBILITY MODEL OF GRAPHENE NANORIBBON IN PARABOLIC BAND ENERGY

2011 ◽  
Vol 25 (10) ◽  
pp. 739-745 ◽  
Author(s):  
N. A. AMIN ◽  
M. T. AHMADI ◽  
Z. JOHARI ◽  
S. M. MOUSAVI ◽  
R. ISMAIL
Keyword(s):  
Experimental Data ◽  
Band Structure ◽  
Transport Properties ◽  
Conventional Method ◽  
Dirac Point ◽  
Graphene Nanoribbons ◽  
Mobility Model ◽  
Band Energy ◽  
One Dimensional ◽  
Effective Mobility

In this letter, we investigate the transport properties of one-dimensional semiconducting Graphene nanoribbons (GNRs) with parabolic band structure near the Dirac point. The analytical model of effective mobility is developed by using the conductance approach, which differs from the conventional method of extracting the effective mobility using the well-known Matthiessen rule. Graphene nanoribbons conductance model developed was applied in the Drude model to obtain the effective mobility, which then gives nearly close comparison with the experimental data.

scholarly journals One-Dimensional Spin-Polarized Quantum-Wire States in Au on Ni(110)

2000 ◽  
Vol 85 (12) ◽  
pp. 2561-2564 ◽  
Author(s):  
C. Pampuch ◽  
O. Rader ◽  
T. Kachel ◽  
W. Gudat ◽  
C. Carbone ◽  
...  
Keyword(s):  
Quantum Wire ◽  
One Dimensional ◽  
Spin Polarized

Type-II Dirac point and extreme dispersion in one-dimensional plasmonic-dielectric crystals with off-axis propagation

2019 ◽  
Vol 99 (4) ◽  
Author(s):  
Zhenzhen Liu ◽  
Qiang Zhang ◽  
Feifei Qin ◽  
Dasen Zhang ◽  
Xiangli Liu ◽  
...  
Keyword(s):  
Dirac Point ◽  
Type Ii ◽  
One Dimensional

scholarly journals Observation of higher-order non-Hermitian skin effect

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xiujuan Zhang ◽  
Yuan Tian ◽  
Jian-Hua Jiang ◽  
Ming-Hui Lu ◽  
Yan-Feng Chen
Keyword(s):  
Topological Insulators ◽  
Skin Effect ◽  
Higher Dimensions ◽  
Higher Order ◽  
Dependent Manner ◽  
Two Dimensional ◽  
Band Theory ◽  
One Dimensional ◽  
Finite Systems ◽  
Spin Polarized

AbstractBeyond the scope of Hermitian physics, non-Hermiticity fundamentally changes the topological band theory, leading to interesting phenomena, e.g., non-Hermitian skin effect, as confirmed in one-dimensional systems. However, in higher dimensions, these effects remain elusive. Here, we demonstrate the spin-polarized, higher-order non-Hermitian skin effect in two-dimensional acoustic higher-order topological insulators. We find that non-Hermiticity drives wave localizations toward opposite edges upon different spin polarizations. More interestingly, for finite systems with both edges and corners, the higher-order non-Hermitian skin effect leads to wave localizations toward two opposite corners for all the bulk, edge and corner states in a spin-dependent manner. We further show that such a skin effect enables rich wave manipulation by configuring the non-Hermiticity. Our study reveals the intriguing interplay between higher-order topology and non-Hermiticity, which is further enriched by the pseudospin degree of freedom, unveiling a horizon in the study of non-Hermitian physics.

Spin-polarized type-II nodal loop and nodal surface states in hexagonal compounds XTiO2 ( X = Li, Na, K, Rb)

2021 ◽  
Vol 103 (23) ◽  
Author(s):  
Tie Yang ◽  
Lei Jin ◽  
Ying Liu ◽  
Xiaoming Zhang ◽  
Xiaotian Wang
Keyword(s):  
Surface States ◽  
Type Ii ◽  
Nodal Surface ◽  
Spin Polarized
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