Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/103271
Title: Unconventional magnetism and electronic state in the frustrated layered system PdCrO2
Authors: Komleva, E. V.
Irkhin, V. Y.
Solovyev, I. V.
Katsnelson, M. I.
Streltsov, S. V.
Issue Date: 2020
Publisher: American Physical Society
Citation: Unconventional magnetism and electronic state in the frustrated layered system PdCrO2 / E. V. Komleva, V. Y. Irkhin, I. V. Solovyev, et al. — DOI 10.1103/PhysRevB.102.174438 // Physical Review B. — 2020. — Vol. 102. — Iss. 17. — 174438.
Abstract: First-principles calculations and a model consideration of magnetically frustrated layered material PdCrO2 are performed. The results on the exchange parameters are in agreement with the experimental data on the Curie-Weiss temperature (θ). We show that experimentally observed strong suppression of the Néel temperature (TN) in comparison with the Curie-Weiss temperature is due to three main factors. First, as expected, this is connected with the layered structure and relatively small exchange interaction along the c axis. Second, deformation of the ideal in-plane 120° magnetic structure is crucial to provide finite TN value. However, these two factors are still insufficient to explain low TN and the large frustration factor |θ|/TN. Thus, we suggest a scenario of an exotic non-Fermi-liquid state in PdCrO2 above TN within the frameworks of the Anderson lattice model, which seems to explain qualitatively all its main peculiarities. © 2020 American Physical Society.
Keywords: CALCULATIONS
FERMI LIQUIDS
PALLADIUM COMPOUNDS
ANDERSON LATTICE MODEL
CURIE-WEISS TEMPERATURE
EXCHANGE PARAMETERS
FIRST-PRINCIPLES CALCULATION
LAYERED MATERIAL
LAYERED STRUCTURES
LAYERED SYSTEMS
NON-FERMI LIQUIDS
CHROMIUM COMPOUNDS
URI: http://hdl.handle.net/10995/103271
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85096905212
PURE ID: 20222738
5b3ee281-5bf8-4b6d-b2c0-72dbab893a1a
ISSN: 24699950
DOI: 10.1103/PhysRevB.102.174438
metadata.dc.description.sponsorship: Authors are grateful to Yu. N. Skryabin for useful discussions. This research was carried out within the state assignment of FASO of Russia via program Quantum (No. AAAA-A18-118020190095-4). We also acknowledge support by Russian Ministry of Science via Contract No. 02.A03.21.0006. Calculations were performed using the Supercomputing Center of IMM UrB RAS. The work of M.I.K. is supported by European Research Council via Synergy Grant No. 854843–FASTCORR.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

Files in This Item:
File Description SizeFormat 
2-s2.0-85096905212.pdf1,05 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.