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Title: Emergence of higher order rotational symmetry in the hidden order phase of URu 2Si 2

Abstract

Electrical resistivity measurements were performed in this paper as functions of temperature, magnetic field, and angle θ between the magnetic field and the c-axis of a URu 2Si 2 single crystal. The resistivity exhibits a two-fold oscillation as a function of θ at high temperatures, which undergoes a 180°-phase shift (sign change) with decreasing temperature at around 35 K. The hidden order transition is manifested as a minimum in the magnetoresistance and amplitude of the two-fold oscillation. Interestingly, the resistivity also showed four-fold, six-fold, and eight-fold symmetries at the hidden order transition. These higher order symmetries were also detected at low temperatures, which could be a sign of the formation of another pseudogap phase above the superconducting transition, consistent with recent evidence for a pseudogap from point-contact spectroscopy measurements and NMR. Measurements of the magnetisation of single crystalline URu 2Si 2 with the magnetic field applied parallel and perpendicular to the crystallographic c-axis revealed regions with linear temperature dependencies between the hidden order transition temperature and about 25 K. Finally, this T-linear behaviour of the magnetisation may be associated with the formation of a precursor phase or ‘pseudogap’ in the density of states in the vicinity of 30–35 K.

Authors:
 [1];  [2];  [1];  [1];  [3];  [4];  [1]
  1. Univ. of California, San Diego, CA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Temple Univ., Philadelphia, PA (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Nordic Inst. for Theoretical Physics (NORDITA), Stockholm (Sweden)
Publication Date:
Research Org.:
Univ. of California, San Diego, CA (United States); Temple Univ., Philadelphia, PA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
OSTI Identifier:
1409772
Alternate Identifier(s):
OSTI ID: 1617913
Report Number(s):
LA-UR-17-23625
Journal ID: ISSN 1478-6435; TRN: US1703319
Grant/Contract Number:  
AC52-06NA25396; FG02-04ER46105; FG02-84ER45872; DMR-1206553; FG02-01ER45872
Resource Type:
Accepted Manuscript
Journal Name:
Philosophical Magazine (2003, Print)
Additional Journal Information:
Journal Name: Philosophical Magazine (2003, Print); Journal Volume: 97; Journal Issue: 2; Journal ID: ISSN 1478-6435
Publisher:
Taylor & Francis
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; hidden order; rotational symmetry; heavy-fermion metals

Citation Formats

Kanchanavatee, N., Janoschek, M., Huang, K., White, B. D., Riseborough, P. S., Balatsky, A. V., and Maple, M. B. Emergence of higher order rotational symmetry in the hidden order phase of URu2Si2. United States: N. p., 2016. Web. doi:10.1080/14786435.2016.1235294.
Kanchanavatee, N., Janoschek, M., Huang, K., White, B. D., Riseborough, P. S., Balatsky, A. V., & Maple, M. B. Emergence of higher order rotational symmetry in the hidden order phase of URu2Si2. United States. doi:10.1080/14786435.2016.1235294.
Kanchanavatee, N., Janoschek, M., Huang, K., White, B. D., Riseborough, P. S., Balatsky, A. V., and Maple, M. B. Fri . "Emergence of higher order rotational symmetry in the hidden order phase of URu2Si2". United States. doi:10.1080/14786435.2016.1235294. https://www.osti.gov/servlets/purl/1409772.
@article{osti_1409772,
title = {Emergence of higher order rotational symmetry in the hidden order phase of URu2Si2},
author = {Kanchanavatee, N. and Janoschek, M. and Huang, K. and White, B. D. and Riseborough, P. S. and Balatsky, A. V. and Maple, M. B.},
abstractNote = {Electrical resistivity measurements were performed in this paper as functions of temperature, magnetic field, and angle θ between the magnetic field and the c-axis of a URu2Si2 single crystal. The resistivity exhibits a two-fold oscillation as a function of θ at high temperatures, which undergoes a 180°-phase shift (sign change) with decreasing temperature at around 35 K. The hidden order transition is manifested as a minimum in the magnetoresistance and amplitude of the two-fold oscillation. Interestingly, the resistivity also showed four-fold, six-fold, and eight-fold symmetries at the hidden order transition. These higher order symmetries were also detected at low temperatures, which could be a sign of the formation of another pseudogap phase above the superconducting transition, consistent with recent evidence for a pseudogap from point-contact spectroscopy measurements and NMR. Measurements of the magnetisation of single crystalline URu2Si2 with the magnetic field applied parallel and perpendicular to the crystallographic c-axis revealed regions with linear temperature dependencies between the hidden order transition temperature and about 25 K. Finally, this T-linear behaviour of the magnetisation may be associated with the formation of a precursor phase or ‘pseudogap’ in the density of states in the vicinity of 30–35 K.},
doi = {10.1080/14786435.2016.1235294},
journal = {Philosophical Magazine (2003, Print)},
number = 2,
volume = 97,
place = {United States},
year = {2016},
month = {9}
}

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