Phase diagram and thermal expansion measurements on the system URu<inf>2-x</inf>Fe<inf>x</inf>Si<inf>2</inf>
Genre
Pre-printDate
2016-11-22Author
Ran, SWolowiec, CT
Jeon, I
Pouse, N
Kanchanavatee, N
White, BD
Huang, K
Martien, D
DaPron, T
Snow, D
Williamsen, M
Spagna, S
Riseborough, PS
Maple, MB
Permanent link to this record
http://hdl.handle.net/20.500.12613/4995
Metadata
Show full item recordDOI
10.1073/pnas.1616542113Abstract
© 2016, National Academy of Sciences. All rights reserved. Thermal expansion, electrical resistivity, magnetization, and specific heat measurements were performed on URu2-xFexSi2 single crystals for various values of Fe concentration x in both the hidden-order (HO) and large-moment antiferromagnetic (LMAFM) regions of the phase diagram. Our results show that the paramagnetic (PM) to HO and LMAFM phase transitions are manifested differently in the thermal expansion coefficient. The uniaxial pressure derivatives of the HO/LMAFM transition temperature T0 change dramatically when crossing from the HO to the LMAFM phase. The energy gap also changes consistently when crossing the phase boundary. In addition, for Fe concentrations at xc ≈ 0.1, we observe two features in the thermal expansion upon cooling, one that appears to be associated with the transition from the PM to the HO phase and another one at lower temperature that may be due to the transition from the HO to the LMAFM phase.Citation to related work
Proceedings of the National Academy of SciencesHas part
Proceedings of the National Academy of Sciences of the United States of AmericaADA compliance
For Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.eduae974a485f413a2113503eed53cd6c53
http://dx.doi.org/10.34944/dspace/4977