Role of chemical disorder in tuning the Weyl points in vanadium doped Co2 TiSn

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dc.contributor.authorChaudhary, Payal
dc.contributor.authorDubey, Krishna Kant
dc.contributor.authorShukla, Gaurav K.
dc.contributor.authorSingh, Sanjay
dc.contributor.authorSadhukhan, Surasree
dc.contributor.authorKanungo, Sudipta
dc.contributor.authorJena, Ajit K.
dc.contributor.authorLee, S.-C.
dc.contributor.authorBhattacharjee, S.
dc.contributor.authorMinár, Jan
dc.contributor.authorDsouza, Sunil Wilfred
dc.date.accessioned2022-09-12T10:00:24Z
dc.date.available2022-09-12T10:00:24Z
dc.date.issued2021
dc.description.abstract-translatedThe lack of time-reversal symmetry and Weyl fermions give exotic transport properties to Co-based Heusler alloys. In the present study, we have investigated the role of chemical disorder on the variation of Weyl points in Co2Ti1−xVxSn magnetic Weyl semimetal candidate. We employ the first principle approach to track the evolution of the nodal lines responsible for the appearance of Weyl node in Co2TiSn as a function of V substitution in place of Ti. By increasing the V concentration in place of Ti, the nodal line moves toward Fermi level and remains at Fermi level around the middle composition. Further increase of the V content, leads shifting of nodal line away from Fermi level. Density of state calculation shows half-metallic behavior for the entire range of composition. The magnetic moment on each Co atom as a function of V concentration increases linearly up to x=0.4, and after that, it starts decreasing. We also investigated the evolution of the Weyl nodes and Fermi arcs with chemical doping. The first-principles calculations reveal that via replacing almost half of the Ti with V, the intrinsic anomalous Hall conductivity increased twice as compared to the undoped composition. Our results indicate that the composition close to the 50% V doped Co2TiSn will be an ideal composition for the experimental investigation of Weyl physics.en
dc.format14 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationCHAUDHARY, P. DUBEY, KK. SHUKLA, GK. SINGH, S. SADHUKHAN, S. KANUNGO, S. JENA, AK. LEE, S. BHATTACHARJEE, S. MINÁR, J. DSOUZA, SW. Role of chemical disorder in tuning the Weyl points in vanadium doped Co2 TiSn. Physical Review Materials, 2021, roč. 5, č. 12, s. nestránkováno. ISSN: 2475-9953cs
dc.identifier.document-number796419700001
dc.identifier.doi10.1103/PhysRevMaterials.5.124201
dc.identifier.issn2475-9953
dc.identifier.obd43936515
dc.identifier.uri2-s2.0-85121629781
dc.identifier.urihttp://hdl.handle.net/11025/49638
dc.language.isoenen
dc.project.IDEF15_003/0000358/Výpočetní a experimentální design pokročilých materiálů s novými funkcionalitamics
dc.publisherAmerican Physical Societyen
dc.relation.ispartofseriesPhysical Review Materialsen
dc.rightsPlný text není přístupný.cs
dc.rights© American Physical Societyen
dc.rights.accessclosedAccessen
dc.subject.translatedCobalt alloysen
dc.subject.translatedFermi levelen
dc.subject.translatedMagnetic momentsen
dc.subject.translatedTernary alloysen
dc.subject.translatedTitanium alloysen
dc.subject.translatedVanadiumen
dc.subject.translatedVanadium alloysen
dc.titleRole of chemical disorder in tuning the Weyl points in vanadium doped Co2 TiSnen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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