Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals

Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals

Strained trigonal Te has been predicted to host Weyl nodes supported by a non-symmorphic chiral symmetry. Using low-pressure physical vapor deposition, we systematically explored the growth of trigonal Te nanowires with naturally occurring strain caused by curvature of the wires. Raman spectra and h...

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Main Authors: Rabindra Basnet, M. Hasan Doha, Takayuki Hironaka, Krishna Pandey, Shiva Davari, Katie M. Welch, Hugh O. H. Churchill, Jin Hu
Format: Article
Language:English
Published: MDPI AG 2019-09-01
Series:Crystals
Subjects:
Weyl semimetal
nanowire
topological semimetal
strain engineering
helical materials
Online Access:https://www.mdpi.com/2073-4352/9/10/486
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spelling doaj-c3b06620a0534ba392843d03426acc992020-11-25T01:51:12ZengMDPI AGCrystals2073-43522019-09-0191048610.3390/cryst9100486cryst9100486Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral CrystalsRabindra Basnet0M. Hasan Doha1Takayuki Hironaka2Krishna Pandey3Shiva Davari4Katie M. Welch5Hugh O. H. Churchill6Jin Hu7Department of Physics, University of Arkansas, Fayetteville, NC 72701, USADepartment of Physics, University of Arkansas, Fayetteville, NC 72701, USADepartment of Physics, University of Arkansas, Fayetteville, NC 72701, USAMicroelectronics-Photonics Graduate Program, University of Arkansas, Fayetteville, NC 72701, USADepartment of Physics, University of Arkansas, Fayetteville, NC 72701, USADepartment of Physics, University of Arkansas, Fayetteville, NC 72701, USADepartment of Physics, University of Arkansas, Fayetteville, NC 72701, USADepartment of Physics, University of Arkansas, Fayetteville, NC 72701, USAStrained trigonal Te has been predicted to host Weyl nodes supported by a non-symmorphic chiral symmetry. Using low-pressure physical vapor deposition, we systematically explored the growth of trigonal Te nanowires with naturally occurring strain caused by curvature of the wires. Raman spectra and high mobility electronic transport attest to the highly crystalline nature of the wires. Comparison of Raman spectra for both straight and curved nanowires indicates a breathing mode that is significantly broader and shifted in frequency for the curved wires. Strain induced by curvature during growth therefore may provide a simple pathway to investigate topological phases in trigonal Te.https://www.mdpi.com/2073-4352/9/10/486Weyl semimetalnanowiretopological semimetalstrain engineeringhelical materials
collection DOAJ
language English
format Article
sources DOAJ
author Rabindra Basnet
M. Hasan Doha
Takayuki Hironaka
Krishna Pandey
Shiva Davari
Katie M. Welch
Hugh O. H. Churchill
Jin Hu
spellingShingle Rabindra Basnet
M. Hasan Doha
Takayuki Hironaka
Krishna Pandey
Shiva Davari
Katie M. Welch
Hugh O. H. Churchill
Jin Hu
Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals
Crystals
Weyl semimetal
nanowire
topological semimetal
strain engineering
helical materials
author_facet Rabindra Basnet
M. Hasan Doha
Takayuki Hironaka
Krishna Pandey
Shiva Davari
Katie M. Welch
Hugh O. H. Churchill
Jin Hu
author_sort Rabindra Basnet
title Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals
title_short Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals
title_full Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals
title_fullStr Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals
title_full_unstemmed Growth and Strain Engineering of Trigonal Te for Topological Quantum Phases in Non-Symmorphic Chiral Crystals
title_sort growth and strain engineering of trigonal te for topological quantum phases in non-symmorphic chiral crystals
publisher MDPI AG
series Crystals
issn 2073-4352
publishDate 2019-09-01
description Strained trigonal Te has been predicted to host Weyl nodes supported by a non-symmorphic chiral symmetry. Using low-pressure physical vapor deposition, we systematically explored the growth of trigonal Te nanowires with naturally occurring strain caused by curvature of the wires. Raman spectra and high mobility electronic transport attest to the highly crystalline nature of the wires. Comparison of Raman spectra for both straight and curved nanowires indicates a breathing mode that is significantly broader and shifted in frequency for the curved wires. Strain induced by curvature during growth therefore may provide a simple pathway to investigate topological phases in trigonal Te.
topic Weyl semimetal
nanowire
topological semimetal
strain engineering
helical materials
url https://www.mdpi.com/2073-4352/9/10/486
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AT mhasandoha growthandstrainengineeringoftrigonaltefortopologicalquantumphasesinnonsymmorphicchiralcrystals
AT takayukihironaka growthandstrainengineeringoftrigonaltefortopologicalquantumphasesinnonsymmorphicchiralcrystals
AT krishnapandey growthandstrainengineeringoftrigonaltefortopologicalquantumphasesinnonsymmorphicchiralcrystals
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