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Title: Chemical composition induced quantum phase transition in Cs 1 - x Rb x FeCl 3

Abstract

Here, the isostructural series of S=1 quantum magnets Cs 1-xRb xFeCl 3 is investigated, using both thermodynamic measurements and inelastic neutron scattering experiments. It is found that with increasing Rb content the system evolves from the gapped state at x=0, through a quantum phase transition at x∼0.35, and to the magnetically ordered state at larger x. Inelastic neutron experiments for x=0, x=0.3, and x=1 demonstrate that the magnetic anisotropy and spin interactions are continuously tuned by the chemical composition. Finally, for the intermediate concentration all magnetic excitations are substantially broadened suggesting that disorder plays a key role in this species. For the two end compounds, excitations remain sharp.

Authors:
 [1];  [1];  [1];  [1]; ORCiD logo [2];  [1]
  1. ETH Zürich (Switzerland)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1528686
Alternate Identifier(s):
OSTI ID: 1546250
Grant/Contract Number:  
AC05-00OR22725; IPTS-21713.1
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 99; Journal Issue: 22; 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; 36 MATERIALS SCIENCE

Citation Formats

Hayashida, S., Stoppel, L., Yan, Z., Gvasaliya, S., Podlesnyak, Andrey A., and Zheludev, A. Chemical composition induced quantum phase transition in Cs1-xRbxFeCl3. United States: N. p., 2019. Web. doi:10.1103/PhysRevB.99.224420.
Hayashida, S., Stoppel, L., Yan, Z., Gvasaliya, S., Podlesnyak, Andrey A., & Zheludev, A. Chemical composition induced quantum phase transition in Cs1-xRbxFeCl3. United States. doi:10.1103/PhysRevB.99.224420.
Hayashida, S., Stoppel, L., Yan, Z., Gvasaliya, S., Podlesnyak, Andrey A., and Zheludev, A. Mon . "Chemical composition induced quantum phase transition in Cs1-xRbxFeCl3". United States. doi:10.1103/PhysRevB.99.224420.
@article{osti_1528686,
title = {Chemical composition induced quantum phase transition in Cs1-xRbxFeCl3},
author = {Hayashida, S. and Stoppel, L. and Yan, Z. and Gvasaliya, S. and Podlesnyak, Andrey A. and Zheludev, A.},
abstractNote = {Here, the isostructural series of S=1 quantum magnets Cs1-xRbxFeCl3 is investigated, using both thermodynamic measurements and inelastic neutron scattering experiments. It is found that with increasing Rb content the system evolves from the gapped state at x=0, through a quantum phase transition at x∼0.35, and to the magnetically ordered state at larger x. Inelastic neutron experiments for x=0, x=0.3, and x=1 demonstrate that the magnetic anisotropy and spin interactions are continuously tuned by the chemical composition. Finally, for the intermediate concentration all magnetic excitations are substantially broadened suggesting that disorder plays a key role in this species. For the two end compounds, excitations remain sharp.},
doi = {10.1103/PhysRevB.99.224420},
journal = {Physical Review B},
number = 22,
volume = 99,
place = {United States},
year = {2019},
month = {6}
}

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