English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Kondo destruction in a quantum paramagnet with magnetic frustration

MPS-Authors
/persons/resource/persons126861

Steglich,  Frank
Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Ressource
No external resources are shared
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Zhang, J., Zhao, H., Lv, M., Hu, S., Isikawa, Y., Yang, Y.-f., et al. (2018). Kondo destruction in a quantum paramagnet with magnetic frustration. Physical Review B, 97(23): 235117, pp. 1-6. doi:10.1103/PhysRevB.97.235117.


Cite as: http://hdl.handle.net/21.11116/0000-0001-9405-2
Abstract
We report results of isothermal magnetotransport and susceptibility measurements at elevated magnetic fields B down to very low temperatures T on single crystals of the frustrated Kondo-lattice system CePdA1. They reveal a B* (T) line within the paramagnetic part of the phase diagram. This line denotes a thermally broadened "small"-to-"large" Fermi-surface crossover which substantially narrows upon cooling. At B-0* = B*(T = 0) = (4.6 +/- 0.1)T, this B* (T) line merges with two other crossover lines, viz. T-p (B) below and T FL (B) above B-0*. T-p characterizes a frustration-dominated spin-liquid state, while T-FL is the Fermi-liquid temperature associated with the lattice Kondo effect. Non-Fermi-liquid phenomena which are commonly observed near a "Kondo-destruction" quantum-critical point cannot be resolved in CePdA1. Our observations reveal a rare case where Kondo coupling, frustration, and quantum criticality are closely intertwined.