Conductance fluctuations of monolayer <script type="math/tex">GeSnH_{2}$ </tex> in the topological phase using a low-energy effective tight-binding Hamiltonian

Aslani, Zahra; Sisakht, Esmaeil Taghizadeh; Fazileh, Farhad; Ghorbanfekr-Kalashami, H.; Peeters, F.M.

doi:10.1103/PHYSREVB.99.115421

Publication

Title

Conductance fluctuations of monolayer $GeSnH_{2}$ </tex> in the topological phase using a low-energy effective tight-binding Hamiltonian </span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Author </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatau"> <a onclick="OPAC.searchexplorator('ASLANI ZAHRA~author'); return false;" href="#"> Aslani, Zahra </a> </span> </div> <div style="min-width:25em;margin-bottom:3px;margin-top:3px"> <span class="opaccatau"> <a onclick="OPAC.searchexplorator('SISAKHT ESMAEIL TAGHIZADEH~author'); return false;" href="#"> Sisakht, Esmaeil Taghizadeh </a> </span> </div> <div style="min-width:25em;margin-bottom:3px;margin-top:3px"> <span class="opaccatau"> <a onclick="OPAC.searchexplorator('FAZILEH FARHAD~author'); return false;" href="#"> Fazileh, Farhad </a> </span> </div> <div style="min-width:25em;margin-bottom:3px;margin-top:3px"> <span class="opaccatau"> <a onclick="OPAC.searchexplorator('a::920.241954~authorac'); return false;" href="#"><em> Ghorbanfekr-Kalashami, H. </em> </a> </span> </div> <div style="min-width:25em;margin-bottom:3px;margin-top:3px"> <span class="opaccatau"> <a onclick="OPAC.searchexplorator('a::920.21142~authorac'); return false;" href="#"><em> Peeters, F.M. </em> </a> </span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Abstract </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <table> <tr> <td><span class="opaccatin">An effective tight-binding (TB) Hamiltonian for monolayer GeSnH2 is constructed which has an inversion-asymmetric honeycomb structure. The low-energy band structure of our TB model agrees very well with previous ab initio calculations even under biaxial tensile strain. Our model predicts a phase transition at 7.5% biaxial tensile strain in agreement with DFT calculations. Upon 8.5% strain the system exhibits a band gap of 134 meV, suitable for room temperature applications. It is shown that an external applied magnetic field produces a special phase which is a combination of the quantum Hall (QH) and quantum spin Hall (QSH) phases; and at a critical magnetic field strength the QSH phase completely disappears. The topological nature of the phase transition is confirmed from: (1) the calculation of the Z(2) topological invariant, and (2) quantum transport properties of disordered GeSnH2 nanoribbons which allows us to determine the universality class of the conductance fluctuations. The application of an external applied magnetic field reduces the conductance fluctuations by a factor of root 2.</span></td></tr> </table> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Language </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatlg"> English </span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Source (journal) </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatre">Physical review B / American Physical Society. - New York, N.Y, 2016, currens</span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Publication </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatimpl"> New York, N.Y </span> : <span class="opaccatimug">American Physical Society</span> , <span class="opaccatimju">2019 </span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> ISSN </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatnr"> 2469-9969 [online] </span> </div> <div style="min-width:25em;margin-bottom:3px;margin-top:3px"> <span class="opaccatnr"> 2469-9950 [print] </span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> DOI </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatnr"> 10.1103/PHYSREVB.99.115421 </span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Volume/pages </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatco"> 99 :11 (2019) , 10 p. </span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Article Reference </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatnr"> 115421 </span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> ISI </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatnr"> 000461958900006 </span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Medium </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatdr"> E-only publicatie </span> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Full text (Publisher's DOI) </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <table> <tr> <td> <span class="opaccatin"> <a href="https://doi.org/10.1103/PHYSREVB.99.115421" onclick='contentscreenmax = window.open("https://doi.org/10.1103/PHYSREVB.99.115421", "contentscreenmax", "toolbar=yes,location=yes,menubar=yes,directories=yes,status=yes,scrollbars=yes,resizable=yes,copyhistory=no, width=700,height=500") ; contentscreenmax.focus(); return false;'>https://doi.org/10.1103/PHYSREVB.99.115421</a></span> </td> </tr> </table> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Full text (open access) </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <table> <tr><td>  <img src="/docman/pictogram/ae2e76/open_access.png" border="0"> </td> <td> <span class="opaccatin"> <a href="https://repository.uantwerpen.be/docman/irua/f9568a/158538.pdf" onclick='contentscreenmax = window.open("https://repository.uantwerpen.be/docman/irua/f9568a/158538.pdf", "contentscreenmax", "toolbar=yes,location=yes,menubar=yes,directories=yes,status=yes,scrollbars=yes,resizable=yes,copyhistory=no, width=700,height=500") ; contentscreenmax.focus(); return false;'>https://repository.uantwerpen.be/docman/irua/f9568a/158538.pdf</a></span> </td> </tr> </table> </div> </td></tr><tr><td></td></tr> </table> </td></tr> <tr class="opacfulldescriptionblockheaderrow"> <td class="opacfulldescriptionblockheader" colspan="10">UAntwerpen</td> </tr> <tr class ="opacfulldescriptionblockrow"> <td colspan="2"> <table class="opacfulldescriptionblock"> <tr> <td class="opacfulldescriptionlabel"> Faculty/Department </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatow"> <a onclick="OPAC.searchexplorator('a::irc.18~facultyac'); return false;" href="#"> Faculty of Sciences. Physics</a>  </span> </div> </td></tr></td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Research group </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <div><a onclick="OPAC.searchexplorator('ua_21051~studyitac');return false;" href="#"> Computational materials modelling for nanoscience and innovative technologies (COMMIT) </a></div> </td></tr></td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Publication type </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatow"> <a onclick="OPAC.searchexplorator('a::pt.2~pubtype'); return false;" href="#"> A1 Journal article</a>  </span> </div> </td></tr></td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Subject </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatow"> <a onclick="OPAC.searchexplorator('a::53~keyword'); return false;" href="#"> Physics</a>  </span> </div> </td></tr></td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> Affiliation </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <span class="opaccatlm"> Publications with a UAntwerp address </span> </div> </td></tr><tr><td></td></tr> </table> </td></tr> <tr class="opacfulldescriptionblockheaderrow"> <td class="opacfulldescriptionblockheader" colspan="10">External links</td> </tr> <tr class ="opacfulldescriptionblockrow"> <td colspan="2"> <table class="opacfulldescriptionblock"> <tr> <td class="opacfulldescriptionlabel"> Web of Science </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <table> <tr> <td> <span class="opaccatin"> <a href="https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000461958900006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848" onclick='contentscreenmax = window.open("https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000461958900006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848", "contentscreenmax", "toolbar=yes,location=yes,menubar=yes,directories=yes,status=yes,scrollbars=yes,resizable=yes,copyhistory=no, width=700,height=500") ; contentscreenmax.focus(); return false;'>View record in Web of Science®</a></span> </td> </tr> </table> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <table> <tr> <td> <span class="opaccatin"> <a href="https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000461958900006&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848" onclick='contentscreenmax = window.open("https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000461958900006&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848", "contentscreenmax", "toolbar=yes,location=yes,menubar=yes,directories=yes,status=yes,scrollbars=yes,resizable=yes,copyhistory=no, width=700,height=500") ; contentscreenmax.focus(); return false;'>View citing articles in Web of Science®</a></span> </td> </tr> </table> </div> </td></tr><tr><td></td></tr> <tr> <td class="opacfulldescriptionlabel"> </td> <td width="3"></td> <td></td><td style="width:3"> </td><td><div style="min-width:25em"> <table> <tr> <td> <span class="opaccatin"> <a href="https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000461958900006&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848" onclick='contentscreenmax = window.open("https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000461958900006&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848", "contentscreenmax", "toolbar=yes,location=yes,menubar=yes,directories=yes,status=yes,scrollbars=yes,resizable=yes,copyhistory=no, width=700,height=500") ; contentscreenmax.focus(); return false;'>View Related Records® in Web of Science®</a></span> </td> </tr> </table> </div> </td></tr><tr><td></td></tr> </table> </td></tr> <tr class="opacfulldescriptionblockheaderrow"> <td class="opacfulldescriptionblockheader" colspan="10">Record</td> </tr> <tr class ="opacfulldescriptionblockrow"> <td colspan="2"> <table class="opacfulldescriptionblock"> <tr> <td class="opacfulldescriptionlabel"> Identifier </td> <td width="3"></td> <td></td><td style="width:3"></td><td> <span class="opaccatloi"> <script type="text/javascript">OPAC.linkToBrocade('c:irua:158538','c:irua:158538');$

Creation

04.04.2019

Last edited

24.11.2024

To cite this reference

https://hdl.handle.net/10067/1585380151162165141