The Library
Fermi-surface topologies and low-temperature phases of the filled skutterudite compounds CeOs4Sb12 and NdOs4Sb12
Tools
Ho, Pei Chun, Singleton, John, Goddard, Paul, Balakirev, Fedor F., Chikara, Shalinee, Yanagisawa, Tatsuya, Maple, M. Brian, Shrekenhamer, David B., Lee, Xia and Thomas, Avraham T. (2016) Fermi-surface topologies and low-temperature phases of the filled skutterudite compounds CeOs4Sb12 and NdOs4Sb12. Physical Review B (Condensed Matter and Materials Physics), 94 (20). 205140. doi:10.1103/PhysRevB.94.205140 ISSN 1098-0121.
PDF
WRAP_bv12871_accepted.pdf - Accepted Version - Requires a PDF viewer. Download (8Mb) |
Official URL: http://dx.doi.org/10.1103/PhysRevB.94.205140
Abstract
MHz conductivity, torque magnetometer and magnetization measurements are reported on single crystals of CeOs4Sb12 and NdOs4Sb12 using temperatures down to 0.5 K and magnetic fields of up to 60 tesla. The field-orientation dependence of the de Haas-van Alphen and Shubnikov-de Haas oscillations is deduced by rotating the samples about the [010] and [0¯11] directions. The results indicate that NdOs4Sb12 has a similar Fermi surface topology to that of the unusual superconductor PrOs4Sb12, but with significantly smaller effective masses, supporting the importance of local phonon modes in contributing to the low-temperature heat capacity of NdOs4Sb12. By contrast, CeOs4Sb12 undergoes a field-induced transition from an unusual semimetal into a high-field, hightemperature state characterized by a single, almost spherical Fermi-surface section. The behavior of the phase boundary and comparisons with models of the bandstructure lead us to propose that the field-induced phase transition in CeOs4Sb12 is similar in origin to the well-known α − γ transition in Ce and its alloys.
Item Type: | Journal Article | |||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Subjects: | Q Science > QC Physics | |||||||||||||||||||||||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||||||||||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Skutterudite, Fermi surfaces, Superconductors, Semimetals | |||||||||||||||||||||||||||||||||
Journal or Publication Title: | Physical Review B (Condensed Matter and Materials Physics) | |||||||||||||||||||||||||||||||||
Publisher: | American Physical Society | |||||||||||||||||||||||||||||||||
ISSN: | 1098-0121 | |||||||||||||||||||||||||||||||||
Official Date: | 28 November 2016 | |||||||||||||||||||||||||||||||||
Dates: |
|
|||||||||||||||||||||||||||||||||
Volume: | 94 | |||||||||||||||||||||||||||||||||
Number: | 20 | |||||||||||||||||||||||||||||||||
Article Number: | 205140 | |||||||||||||||||||||||||||||||||
DOI: | 10.1103/PhysRevB.94.205140 | |||||||||||||||||||||||||||||||||
Status: | Peer Reviewed | |||||||||||||||||||||||||||||||||
Publication Status: | Published | |||||||||||||||||||||||||||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||||||||||||||||||||
Date of first compliant deposit: | 20 January 2017 | |||||||||||||||||||||||||||||||||
Date of first compliant Open Access: | 20 January 2017 | |||||||||||||||||||||||||||||||||
RIOXX Funder/Project Grant: |
|
|||||||||||||||||||||||||||||||||
Related URLs: | ||||||||||||||||||||||||||||||||||
Open Access Version: |
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year