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  • Barcza, GergelyWigner Res Ctr Phys, Hungary; Czech Acad Sci, Czech Republic (författare)

DMRG on Top of Plane-Wave Kohn-Sham Orbitals: A Case Study of Defected Boron Nitride

  • Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

  • 2021-01-13
  • AMER CHEMICAL SOC,2021
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:liu-174389
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-174389URI
  • https://doi.org/10.1021/acs.jctc.0c00809DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Funding Agencies|NKFIH [PD-17-125261, FK-20-135496, K120569, K134983]; Bolyai Research Scholarship of the Hungarian Academy of SciencesHungarian Academy of Sciences; MTA Premium Postdoctoral Research Program; Knut and Alice Wallenberg Foundation through WBSQD2 project [2018.0071]; Czech Science FoundationGrant Agency of the Czech Republic [18-18940Y]; NKFIH through the National Quantum Technology Program [2017-1.2.1-NKP-2017-00001]; Alexander von Humboldt FoundationAlexander von Humboldt Foundation; Hungarian NKFIH of the National Excellence Program of the Quantum-coherent materials project [KKP129866]; Center for Scalable and Predictive methods for Excitation and Correlated phenomena (SPEC) from the Computational Chemical Sciences Program by the U.S. Department of Energy (DOE), at the Pacific Northwest National LaboratoryUnited States Department of Energy (DOE)
  • In this paper, we analyze the numerical aspects of the inherent multireference density matrix renormalization group (DMRG) calculations on top of the periodic Kohn-Sham density functional theory using the complete active space approach. The potential of the framework is illustrated by studying hexagonal boron nitride nanoflakes embedding a charged single boron vacancy point defect by revealing a vertical energy spectrum with a prominent multireference character. We investigate the consistency of the DMRG energy spectrum from the perspective of sample size, basis size, and active space selection protocol. Results obtained from standard quantum chemical atom-centered basis calculations and plane-wave based counterparts show excellent agreement. Furthermore, we also discuss the spectrum of the periodic sheet which is in good agreement with extrapolated data of finite clusters. These results pave the way toward applying the DMRG method in extended correlated solid-state systems, such as point defect qubit in wide band gap semiconductors.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Ivády, ViktorLinköpings universitet,Teoretisk Fysik,Tekniska fakulteten,Wigner Res Ctr Phys, Hungary(Swepub:liu)vikiv58 (författare)
  • Szilvasi, TiborUniv Wisconsin, WI 53706 USA; Univ Alabama, AL 35487 USA (författare)
  • Voros, MartonArgonne Natl Lab, IL 60439 USA (författare)
  • Veis, LiborCzech Acad Sci, Czech Republic (författare)
  • Gali, AdamWigner Res Ctr Phys, Hungary; Budapest Univ Technol & Econ, Hungary (författare)
  • Legeza, OrsWigner Res Ctr Phys, Hungary (författare)
  • Wigner Res Ctr Phys, Hungary; Czech Acad Sci, Czech RepublicTeoretisk Fysik (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Journal of Chemical Theory and Computation: AMER CHEMICAL SOC17:2, s. 1143-11541549-96181549-9626

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