Cited time in webofscience Cited time in scopus

Angle-resolved photoemission spectroscopy study of rare-earth tritelluride charge density wave compounds: RTe3 (R = Pr, Er)

Angle-resolved photoemission spectroscopy study of rare-earth tritelluride charge density wave compounds: RTe3 (R = Pr, Er)
Seong, SeunghoLee, EunsookKwon, Yong SeungMin, B.I.Denlinger, J.D.Park, Byeong-GyuKang, J.-S.
Issued Date
Electronic Structure, v.3, no.2, pp.024003
Author Keywords
Angle-resolved photoemission spectroscopyCharge density waveElectronic structureHybridizationResonant photoemission spectroscopy
Charge densityCharge density wavesDichroismElectronic structureErbium compoundsPhotoelectron spectroscopyRare earthsAngle resolved photoemission spectroscopyHigh quality single crystalsIonic sizesLinear dichroismPhoton energyResonant photoemission spectroscopyVertical dispersionWeak interlayersPraseodymium compounds
The electronic structures of layered rare-earth tritelluride RTe3 (R = Pr, Er) charge density wave (CDW) compounds have been investigated by performing R 4d→4f resonant photoemission spectroscopy (RPES) and angle-resolved photoemission spectroscopy (ARPES) measurements for high-quality single crystals. R 4d→4f RPES measurements reveal that the R 4f states do not contribute directly to the CDWformation in RTe3 but that the R 4f-Te 5p hybridization in PrTe3 is significantly larger than that in ErTe3. In the photon-energy maps for the Fermi-edge (EF)-crossing states in RTe3, straight vertical dispersions are observed along kc, demonstrating the 2D character for the near-EF states in both R = Pr and Er. This finding implies the weak interlayer interaction between R-Te(1) and Te(2)-Te(3) layers, which is supported by the similar linear dichroism in ARPES for PrTe3 and ErTe3. The CDW-induced Fermi surface of PrTe3 exhibits two-fold symmetric features while that of ErTe3 exhibits four-fold symmetric features. This finding reveals different CDWdistortions in PrTe3 and ErTe3, the origin of which is likely to be different ionic sizes of R ions and different R 4f-Te 5p hybridization. © 2021 IOP Publishing Ltd.
IOP Publishing Ltd
Related Researcher
  • 권용성 Kwon, Yong Seung 화학물리학과
  • Research Interests High Tc Superconductors and magnetic materials; Thermoelectric Materials
Files in This Item:

There are no files associated with this item.

Appears in Collections:
Department of Physics and Chemistry Quantum Functional Materials Laboratory 1. Journal Articles


  • twitter
  • facebook
  • mendeley

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