Possible devil's staircase in the Kondo lattice CeSbSe
Journal Article
·
· Physical Review. B
- Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
- Florida State Univ., Tallahassee, FL (United States)
The temperature-(T) magnetic-field (H) phase diagram for the tetragonal layered compound CeSbSe is determined from magnetization, specific heat, and electrical resistivity measurements. This system exhibits complex magnetic ordering at TM = 3 K and the application of a magnetic field results in a cascade of magnetically ordered states for H ≲ 1.8 T which are characterized by fractional integer size steps: i.e., a possible devil's staircase is observed. In this work, electrical transport measurements show a weak temperature dependence and large residual resistivity which suggest a small charge-carrier density and strong scattering from the f moments. These features reveal Kondo lattice behavior where the f moments are screened incompletely, resulting in a fine balanced magnetic interaction between different Ce neighbors that is mediated by the Ruderman-Kittel-Kasuya-Yosida interaction. This produces the nearly degenerate magnetically ordered states that are accessed under an applied magnetic field.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Center for Actinide Science & Technology (CAST)
- Sponsoring Organization:
- National Science Foundation (NSF); State of Florida; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0002613; SC0016568
- OSTI ID:
- 1470215
- Alternate ID(s):
- OSTI ID: 1371605
- Journal Information:
- Physical Review. B, Journal Name: Physical Review. B Journal Issue: 1 Vol. 96; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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