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Title: Role of band filling in tuning the high-field phases of URu 2 Si 2

We present a detailed study of the low temperature and high magnetic eld phases in the chemical substitution series URu 2Si 2-xPx using electrical transport and magnetization in pulsed magnetic elds up to 65T. Within the hidden order x-regime (0 < x ≲ 0.035) the eld induced ordering that was earlier seen for x = 0 is robust, even as the hidden order temperature is suppressed. Earlier work shows that for 0.035 ≲ x ≲ 0.26 there is a Kondo lattice with a no-ordered state that is replaced by antiferromagnetism for 0.26 ≲ x ≲ 0.5. We observe a simpli ed continuation of the eld induced order in the no-order x-regime and an enhancement of the field induced order upon the destruction of the antiferromagnetism with magnetic field. These results closely resemble what is seen for URu 2-xRhxSi 2 a, from which we infer that charge tuning dominantly controls the ground state of URu 2Si 2, regardless of whether s/p or d-electrons are replaced. Contraction of the unit cell volume may also play a role at large x. This provides guidance for determining the specific factors that lead to hidden order versus magnetism in this family of materials and constrainsmore » possible models for hidden order.« less
Authors:
 [1] ;  [1] ;  [1] ;  [2] ;  [2] ;  [1] ;  [1]
  1. Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-17-30079
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1800411
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 96; Journal Issue: 8; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; High Magnetic Field Science
OSTI Identifier:
1412913
Alternate Identifier(s):
OSTI ID: 1377122

Wartenbe, M. R., Chen, K. -W., Gallagher, A., Harrison, N., McDonald, R. D., Boebinger, G. S., and Baumbach, R. E.. Role of band filling in tuning the high-field phases of URu2Si2. United States: N. p., Web. doi:10.1103/PhysRevB.96.085141.
Wartenbe, M. R., Chen, K. -W., Gallagher, A., Harrison, N., McDonald, R. D., Boebinger, G. S., & Baumbach, R. E.. Role of band filling in tuning the high-field phases of URu2Si2. United States. doi:10.1103/PhysRevB.96.085141.
Wartenbe, M. R., Chen, K. -W., Gallagher, A., Harrison, N., McDonald, R. D., Boebinger, G. S., and Baumbach, R. E.. 2017. "Role of band filling in tuning the high-field phases of URu2Si2". United States. doi:10.1103/PhysRevB.96.085141. https://www.osti.gov/servlets/purl/1412913.
@article{osti_1412913,
title = {Role of band filling in tuning the high-field phases of URu2Si2},
author = {Wartenbe, M. R. and Chen, K. -W. and Gallagher, A. and Harrison, N. and McDonald, R. D. and Boebinger, G. S. and Baumbach, R. E.},
abstractNote = {We present a detailed study of the low temperature and high magnetic eld phases in the chemical substitution series URu2Si2-xPx using electrical transport and magnetization in pulsed magnetic elds up to 65T. Within the hidden order x-regime (0 < x ≲ 0.035) the eld induced ordering that was earlier seen for x = 0 is robust, even as the hidden order temperature is suppressed. Earlier work shows that for 0.035 ≲ x ≲ 0.26 there is a Kondo lattice with a no-ordered state that is replaced by antiferromagnetism for 0.26 ≲ x ≲ 0.5. We observe a simpli ed continuation of the eld induced order in the no-order x-regime and an enhancement of the field induced order upon the destruction of the antiferromagnetism with magnetic field. These results closely resemble what is seen for URu2-xRhxSi2 a, from which we infer that charge tuning dominantly controls the ground state of URu2Si2, regardless of whether s/p or d-electrons are replaced. Contraction of the unit cell volume may also play a role at large x. This provides guidance for determining the specific factors that lead to hidden order versus magnetism in this family of materials and constrains possible models for hidden order.},
doi = {10.1103/PhysRevB.96.085141},
journal = {Physical Review B},
number = 8,
volume = 96,
place = {United States},
year = {2017},
month = {8}
}