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Title: Crystal electric field excitations in the quasicrystal approximant TbCd 6 studied by inelastic neutron scattering

Abstract

Here, we have performed inelastic neutron scattering measurements on powder samples of the quasicrystal approximant, TbCd 6, grown using isotopically enriched 112Cd. Both quasielastic scattering and distinct inelastic excitations were observed below 3 meV. The intensity of the quasielastic scattering measured in the paramag- netic phase diverges as T N ~ 22 K is approached from above. The inelastic excitations, and their evolution with temperature, are well characterized by the leading term, B$$0\atop{2}$$O$$0\atop{2}$$, of the crystalline electric field (CEF) level scheme for local pentagonal symmetry for the rare-earth ions [1] indicating that the Tb moment is directed primarily along the unique local pseudo-five-fold axis of the Tsai-type clusters. We also find good agreement between the inverse susceptibility determined from magnetization measurements using a magnetically diluted Tb 0.05Y 0.95Cd 6 sample and that calculated using the CEF level scheme determined from the neutron measurements.

Authors:
 [1];  [2];  [1];  [1];  [3];  [1];  [1];  [2];  [1];  [1]
  1. Ames Lab. and Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy
  2. Univ. of Grenoble (France)
  3. Tokyo Univ. of Science, Noda (Japan). Dept. of Materials Science and Technology
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1347911
Alternate Identifier(s):
OSTI ID: 1342977
Report Number(s):
IS-J 9240
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1700874
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 95; Journal Issue: 5; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Das, Pinaki, Lory, P. -F., Flint, R., Kong, T., Hiroto, T., Bud'ko, S. L., Canfield, P. C., de Boissieu, M., Kreyssig, A., and Goldman, A. I.. Crystal electric field excitations in the quasicrystal approximant TbCd6 studied by inelastic neutron scattering. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.95.054408.
Das, Pinaki, Lory, P. -F., Flint, R., Kong, T., Hiroto, T., Bud'ko, S. L., Canfield, P. C., de Boissieu, M., Kreyssig, A., & Goldman, A. I.. Crystal electric field excitations in the quasicrystal approximant TbCd6 studied by inelastic neutron scattering. United States. doi:10.1103/PhysRevB.95.054408.
Das, Pinaki, Lory, P. -F., Flint, R., Kong, T., Hiroto, T., Bud'ko, S. L., Canfield, P. C., de Boissieu, M., Kreyssig, A., and Goldman, A. I.. Tue . "Crystal electric field excitations in the quasicrystal approximant TbCd6 studied by inelastic neutron scattering". United States. doi:10.1103/PhysRevB.95.054408. https://www.osti.gov/servlets/purl/1347911.
@article{osti_1347911,
title = {Crystal electric field excitations in the quasicrystal approximant TbCd6 studied by inelastic neutron scattering},
author = {Das, Pinaki and Lory, P. -F. and Flint, R. and Kong, T. and Hiroto, T. and Bud'ko, S. L. and Canfield, P. C. and de Boissieu, M. and Kreyssig, A. and Goldman, A. I.},
abstractNote = {Here, we have performed inelastic neutron scattering measurements on powder samples of the quasicrystal approximant, TbCd6, grown using isotopically enriched 112Cd. Both quasielastic scattering and distinct inelastic excitations were observed below 3 meV. The intensity of the quasielastic scattering measured in the paramag- netic phase diverges as TN ~ 22 K is approached from above. The inelastic excitations, and their evolution with temperature, are well characterized by the leading term, B$0\atop{2}$O$0\atop{2}$, of the crystalline electric field (CEF) level scheme for local pentagonal symmetry for the rare-earth ions [1] indicating that the Tb moment is directed primarily along the unique local pseudo-five-fold axis of the Tsai-type clusters. We also find good agreement between the inverse susceptibility determined from magnetization measurements using a magnetically diluted Tb0.05Y0.95Cd6 sample and that calculated using the CEF level scheme determined from the neutron measurements.},
doi = {10.1103/PhysRevB.95.054408},
journal = {Physical Review B},
number = 5,
volume = 95,
place = {United States},
year = {Tue Feb 07 00:00:00 EST 2017},
month = {Tue Feb 07 00:00:00 EST 2017}
}

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