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Title: Fragile antiferromagnetism in the heavy-fermion compound YbBiPt

Abstract

We report results from neutron scattering experiments on single crystals of YbBiPt that demonstrate antiferromagnetic order characterized by a propagation vector, τAFM = (121212), and ordered moments that align along the [1 1 1] direction of the cubic unit cell. We describe the scattering in terms of a two-Gaussian peak fit, which consists of a narrower component that appears below TN≈0.4 K and corresponds to a magnetic correlation length of ξn≈ 80 Å, and a broad component that persists up to T*≈ 0.7 K and corresponds to antiferromagnetic correlations extending over ξb≈ 20 Å. Our results illustrate the fragile magnetic order present in YbBiPt and provide a path forward for microscopic investigations of the ground states and fluctuations associated with the purported quantum critical point in this heavy-fermion compound.

Authors:
 [1];  [1];  [2];  [3];  [3];  [3];  [3];  [4];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Ames Laboratory
  2. Helmholtz-Zentrum Berlin fur Materialien und Energie
  3. NIST Center for Neutron Research
  4. University of Missouri
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1149367
Report Number(s):
IS-J 8305
Journal ID: ISSN 1098-0121
DOE Contract Number:  
DE-AC02-07CH11358
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 89; Journal Issue: 18; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Ueland, Benjamin G., Kreyssig, Andreas, Prokes, K., Lynn, J. W., Harriger, L. W., Pratt, D. K., Singh, D. K., Heitmann, T. W., Sauerbrei, Samantha, Saunders, Scott M., Mun, E. D., Budko, Serguei L., McQueeney, Robert J., Canfield, Paul C., and Goldman, Alan I. Fragile antiferromagnetism in the heavy-fermion compound YbBiPt. United States: N. p., 2014. Web. doi:10.1103/PhysRevB.89.180403.
Ueland, Benjamin G., Kreyssig, Andreas, Prokes, K., Lynn, J. W., Harriger, L. W., Pratt, D. K., Singh, D. K., Heitmann, T. W., Sauerbrei, Samantha, Saunders, Scott M., Mun, E. D., Budko, Serguei L., McQueeney, Robert J., Canfield, Paul C., & Goldman, Alan I. Fragile antiferromagnetism in the heavy-fermion compound YbBiPt. United States. https://doi.org/10.1103/PhysRevB.89.180403
Ueland, Benjamin G., Kreyssig, Andreas, Prokes, K., Lynn, J. W., Harriger, L. W., Pratt, D. K., Singh, D. K., Heitmann, T. W., Sauerbrei, Samantha, Saunders, Scott M., Mun, E. D., Budko, Serguei L., McQueeney, Robert J., Canfield, Paul C., and Goldman, Alan I. Thu . "Fragile antiferromagnetism in the heavy-fermion compound YbBiPt". United States. https://doi.org/10.1103/PhysRevB.89.180403.
@article{osti_1149367,
title = {Fragile antiferromagnetism in the heavy-fermion compound YbBiPt},
author = {Ueland, Benjamin G. and Kreyssig, Andreas and Prokes, K. and Lynn, J. W. and Harriger, L. W. and Pratt, D. K. and Singh, D. K. and Heitmann, T. W. and Sauerbrei, Samantha and Saunders, Scott M. and Mun, E. D. and Budko, Serguei L. and McQueeney, Robert J. and Canfield, Paul C. and Goldman, Alan I.},
abstractNote = {We report results from neutron scattering experiments on single crystals of YbBiPt that demonstrate antiferromagnetic order characterized by a propagation vector, τAFM = (121212), and ordered moments that align along the [1 1 1] direction of the cubic unit cell. We describe the scattering in terms of a two-Gaussian peak fit, which consists of a narrower component that appears below TN≈0.4 K and corresponds to a magnetic correlation length of ξn≈ 80 Å, and a broad component that persists up to T*≈ 0.7 K and corresponds to antiferromagnetic correlations extending over ξb≈ 20 Å. Our results illustrate the fragile magnetic order present in YbBiPt and provide a path forward for microscopic investigations of the ground states and fluctuations associated with the purported quantum critical point in this heavy-fermion compound.},
doi = {10.1103/PhysRevB.89.180403},
url = {https://www.osti.gov/biblio/1149367}, journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 18,
volume = 89,
place = {United States},
year = {2014},
month = {5}
}