Extreme Optical Anisotropy in the Type-II Dirac Semimetal NiTe2 for Applications to Nanophotonics

Several bulk transition-metal dichalcogenides exhibit a strong optical anisotropy, high refractive index, and even a natural hyperbolic response, which are enabling ingredients in a variety of nanophotonic scenarios of great interest. Here, we investigate the electromagnetic response of NiTe2, a typ...

Full description

Saved in:
Bibliographic Details
Published in:ACS applied nano materials 2022-12, Vol.5 (12), p.18531-18536
Main Authors: Rizza, Carlo, Dutta, Debasis, Ghosh, Barun, Alessandro, Francesca, Kuo, Chia-Nung, Lue, Chin Shan, Caputi, Lorenzo S., Bansil, Arun, Galdi, Vincenzo, Agarwal, Amit, Politano, Antonio, Cupolillo, Anna
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites
container_end_page 18536
container_issue 12
container_start_page 18531
container_title ACS applied nano materials
container_volume 5
creator Rizza, Carlo
Dutta, Debasis
Ghosh, Barun
Alessandro, Francesca
Kuo, Chia-Nung
Lue, Chin Shan
Caputi, Lorenzo S.
Bansil, Arun
Galdi, Vincenzo
Agarwal, Amit
Politano, Antonio
Cupolillo, Anna
description Several bulk transition-metal dichalcogenides exhibit a strong optical anisotropy, high refractive index, and even a natural hyperbolic response, which are enabling ingredients in a variety of nanophotonic scenarios of great interest. Here, we investigate the electromagnetic response of NiTe2, a type-II Dirac semimetal, whose infrared/optical properties have been hitherto largely unexplored. Through density-functional-theory-based ab initio modeling, along with electron energy loss spectroscopy experiments, we show that NiTe2 exhibits a varied, extremely anisotropic response within the infrared and visible ranges. We also demonstrate the high tunability of its optical properties and illustrate the key role played by Dirac fermions. Our results pave the way for realizing nanophotonic devices for efficient light manipulation at subwavelength scales.
doi_str_mv 10.1021/acsanm.2c04340
format article
fullrecord <record><control><sourceid>acs</sourceid><recordid>TN_cdi_acs_journals_10_1021_acsanm_2c04340</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>i7594267</sourcerecordid><originalsourceid>FETCH-LOGICAL-a160t-56b7d48f3b8e6d890e8d6fb9aeba113c38efde96950ad875be77b67790dcf603</originalsourceid><addsrcrecordid>eNpNkM1LwzAYxoMoOOaunnMWOt80bdIcx5xaGNvB3kuavmUZbVKaCO6_t7IdPD3P4fmAHyHPDNYMUvaqTdBuWKcGMp7BHVmkucwSUBLu__lHsgrhDABMMcEBFkTvfuKEA9LjGK3RPd04G3yc_Hih1tF4QlpdRkzKkr7ZSRv6hYMdMM7Jg60wpZ2f6GYc-7kcrXeBRk8P2vnx5KN31oQn8tDpPuDqpktSve-q7WeyP36U280-0UxATHLRyDYrOt4UKNpCARat6BqlsdGMccML7FpUQuWg20LmDUrZCCkVtKYTwJfk5To7k6jP_nty81nNoP7DU1_x1Dc8_Bd791qK</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Extreme Optical Anisotropy in the Type-II Dirac Semimetal NiTe2 for Applications to Nanophotonics</title><source>American Chemical Society:Jisc Collections:American Chemical Society Read &amp; Publish Agreement 2022-2024 (Reading list)</source><creator>Rizza, Carlo ; Dutta, Debasis ; Ghosh, Barun ; Alessandro, Francesca ; Kuo, Chia-Nung ; Lue, Chin Shan ; Caputi, Lorenzo S. ; Bansil, Arun ; Galdi, Vincenzo ; Agarwal, Amit ; Politano, Antonio ; Cupolillo, Anna</creator><creatorcontrib>Rizza, Carlo ; Dutta, Debasis ; Ghosh, Barun ; Alessandro, Francesca ; Kuo, Chia-Nung ; Lue, Chin Shan ; Caputi, Lorenzo S. ; Bansil, Arun ; Galdi, Vincenzo ; Agarwal, Amit ; Politano, Antonio ; Cupolillo, Anna</creatorcontrib><description>Several bulk transition-metal dichalcogenides exhibit a strong optical anisotropy, high refractive index, and even a natural hyperbolic response, which are enabling ingredients in a variety of nanophotonic scenarios of great interest. Here, we investigate the electromagnetic response of NiTe2, a type-II Dirac semimetal, whose infrared/optical properties have been hitherto largely unexplored. Through density-functional-theory-based ab initio modeling, along with electron energy loss spectroscopy experiments, we show that NiTe2 exhibits a varied, extremely anisotropic response within the infrared and visible ranges. We also demonstrate the high tunability of its optical properties and illustrate the key role played by Dirac fermions. Our results pave the way for realizing nanophotonic devices for efficient light manipulation at subwavelength scales.</description><identifier>ISSN: 2574-0970</identifier><identifier>EISSN: 2574-0970</identifier><identifier>DOI: 10.1021/acsanm.2c04340</identifier><language>eng</language><publisher>American Chemical Society</publisher><ispartof>ACS applied nano materials, 2022-12, Vol.5 (12), p.18531-18536</ispartof><rights>2022 The Authors. Published by American Chemical Society</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0003-0047-5228 ; 0000-0002-4254-2102 ; 0000-0002-4796-3600</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Rizza, Carlo</creatorcontrib><creatorcontrib>Dutta, Debasis</creatorcontrib><creatorcontrib>Ghosh, Barun</creatorcontrib><creatorcontrib>Alessandro, Francesca</creatorcontrib><creatorcontrib>Kuo, Chia-Nung</creatorcontrib><creatorcontrib>Lue, Chin Shan</creatorcontrib><creatorcontrib>Caputi, Lorenzo S.</creatorcontrib><creatorcontrib>Bansil, Arun</creatorcontrib><creatorcontrib>Galdi, Vincenzo</creatorcontrib><creatorcontrib>Agarwal, Amit</creatorcontrib><creatorcontrib>Politano, Antonio</creatorcontrib><creatorcontrib>Cupolillo, Anna</creatorcontrib><title>Extreme Optical Anisotropy in the Type-II Dirac Semimetal NiTe2 for Applications to Nanophotonics</title><title>ACS applied nano materials</title><addtitle>ACS Appl. Nano Mater</addtitle><description>Several bulk transition-metal dichalcogenides exhibit a strong optical anisotropy, high refractive index, and even a natural hyperbolic response, which are enabling ingredients in a variety of nanophotonic scenarios of great interest. Here, we investigate the electromagnetic response of NiTe2, a type-II Dirac semimetal, whose infrared/optical properties have been hitherto largely unexplored. Through density-functional-theory-based ab initio modeling, along with electron energy loss spectroscopy experiments, we show that NiTe2 exhibits a varied, extremely anisotropic response within the infrared and visible ranges. We also demonstrate the high tunability of its optical properties and illustrate the key role played by Dirac fermions. Our results pave the way for realizing nanophotonic devices for efficient light manipulation at subwavelength scales.</description><issn>2574-0970</issn><issn>2574-0970</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNpNkM1LwzAYxoMoOOaunnMWOt80bdIcx5xaGNvB3kuavmUZbVKaCO6_t7IdPD3P4fmAHyHPDNYMUvaqTdBuWKcGMp7BHVmkucwSUBLu__lHsgrhDABMMcEBFkTvfuKEA9LjGK3RPd04G3yc_Hih1tF4QlpdRkzKkr7ZSRv6hYMdMM7Jg60wpZ2f6GYc-7kcrXeBRk8P2vnx5KN31oQn8tDpPuDqpktSve-q7WeyP36U280-0UxATHLRyDYrOt4UKNpCARat6BqlsdGMccML7FpUQuWg20LmDUrZCCkVtKYTwJfk5To7k6jP_nty81nNoP7DU1_x1Dc8_Bd791qK</recordid><startdate>20221223</startdate><enddate>20221223</enddate><creator>Rizza, Carlo</creator><creator>Dutta, Debasis</creator><creator>Ghosh, Barun</creator><creator>Alessandro, Francesca</creator><creator>Kuo, Chia-Nung</creator><creator>Lue, Chin Shan</creator><creator>Caputi, Lorenzo S.</creator><creator>Bansil, Arun</creator><creator>Galdi, Vincenzo</creator><creator>Agarwal, Amit</creator><creator>Politano, Antonio</creator><creator>Cupolillo, Anna</creator><general>American Chemical Society</general><scope/><orcidid>https://orcid.org/0000-0003-0047-5228</orcidid><orcidid>https://orcid.org/0000-0002-4254-2102</orcidid><orcidid>https://orcid.org/0000-0002-4796-3600</orcidid></search><sort><creationdate>20221223</creationdate><title>Extreme Optical Anisotropy in the Type-II Dirac Semimetal NiTe2 for Applications to Nanophotonics</title><author>Rizza, Carlo ; Dutta, Debasis ; Ghosh, Barun ; Alessandro, Francesca ; Kuo, Chia-Nung ; Lue, Chin Shan ; Caputi, Lorenzo S. ; Bansil, Arun ; Galdi, Vincenzo ; Agarwal, Amit ; Politano, Antonio ; Cupolillo, Anna</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a160t-56b7d48f3b8e6d890e8d6fb9aeba113c38efde96950ad875be77b67790dcf603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rizza, Carlo</creatorcontrib><creatorcontrib>Dutta, Debasis</creatorcontrib><creatorcontrib>Ghosh, Barun</creatorcontrib><creatorcontrib>Alessandro, Francesca</creatorcontrib><creatorcontrib>Kuo, Chia-Nung</creatorcontrib><creatorcontrib>Lue, Chin Shan</creatorcontrib><creatorcontrib>Caputi, Lorenzo S.</creatorcontrib><creatorcontrib>Bansil, Arun</creatorcontrib><creatorcontrib>Galdi, Vincenzo</creatorcontrib><creatorcontrib>Agarwal, Amit</creatorcontrib><creatorcontrib>Politano, Antonio</creatorcontrib><creatorcontrib>Cupolillo, Anna</creatorcontrib><jtitle>ACS applied nano materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rizza, Carlo</au><au>Dutta, Debasis</au><au>Ghosh, Barun</au><au>Alessandro, Francesca</au><au>Kuo, Chia-Nung</au><au>Lue, Chin Shan</au><au>Caputi, Lorenzo S.</au><au>Bansil, Arun</au><au>Galdi, Vincenzo</au><au>Agarwal, Amit</au><au>Politano, Antonio</au><au>Cupolillo, Anna</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Extreme Optical Anisotropy in the Type-II Dirac Semimetal NiTe2 for Applications to Nanophotonics</atitle><jtitle>ACS applied nano materials</jtitle><addtitle>ACS Appl. Nano Mater</addtitle><date>2022-12-23</date><risdate>2022</risdate><volume>5</volume><issue>12</issue><spage>18531</spage><epage>18536</epage><pages>18531-18536</pages><issn>2574-0970</issn><eissn>2574-0970</eissn><abstract>Several bulk transition-metal dichalcogenides exhibit a strong optical anisotropy, high refractive index, and even a natural hyperbolic response, which are enabling ingredients in a variety of nanophotonic scenarios of great interest. Here, we investigate the electromagnetic response of NiTe2, a type-II Dirac semimetal, whose infrared/optical properties have been hitherto largely unexplored. Through density-functional-theory-based ab initio modeling, along with electron energy loss spectroscopy experiments, we show that NiTe2 exhibits a varied, extremely anisotropic response within the infrared and visible ranges. We also demonstrate the high tunability of its optical properties and illustrate the key role played by Dirac fermions. Our results pave the way for realizing nanophotonic devices for efficient light manipulation at subwavelength scales.</abstract><pub>American Chemical Society</pub><doi>10.1021/acsanm.2c04340</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0003-0047-5228</orcidid><orcidid>https://orcid.org/0000-0002-4254-2102</orcidid><orcidid>https://orcid.org/0000-0002-4796-3600</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 2574-0970
ispartof ACS applied nano materials, 2022-12, Vol.5 (12), p.18531-18536
issn 2574-0970
2574-0970
language eng
recordid cdi_acs_journals_10_1021_acsanm_2c04340
source American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list)
title Extreme Optical Anisotropy in the Type-II Dirac Semimetal NiTe2 for Applications to Nanophotonics
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-01T01%3A30%3A35IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-acs&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Extreme%20Optical%20Anisotropy%20in%20the%20Type-II%20Dirac%20Semimetal%20NiTe2%20for%20Applications%20to%20Nanophotonics&rft.jtitle=ACS%20applied%20nano%20materials&rft.au=Rizza,%20Carlo&rft.date=2022-12-23&rft.volume=5&rft.issue=12&rft.spage=18531&rft.epage=18536&rft.pages=18531-18536&rft.issn=2574-0970&rft.eissn=2574-0970&rft_id=info:doi/10.1021/acsanm.2c04340&rft_dat=%3Cacs%3Ei7594267%3C/acs%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-a160t-56b7d48f3b8e6d890e8d6fb9aeba113c38efde96950ad875be77b67790dcf603%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true