English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Temperature-field phase diagram of geometrically frustrated CePdAl

MPS-Authors
/persons/resource/persons126861

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

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Zhao, H., Zhang, J., Hu, S., Isikawa, Y., Luo, J., Steglich, F., et al. (2016). Temperature-field phase diagram of geometrically frustrated CePdAl. Physical Review B, 94(23): 235131, pp. 1-5. doi:10.1103/PhysRevB.94.235131.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-3EC1-0
Abstract
A rich temperature-field phase diagram has been constructed for the geometrically frustrated, Ising-like heavy-fermion compound CePdAl. In the limit of zero temperature, the magnetic field applied along the Ising axis (B parallel to c) induces a suppression of the antiferromagnetism, resulting in a sequence of phase transitions/crossovers, rather than a single critical point, in a critical region of field 3-5 T. In the lowest-temperature region, a power-law description of resistivity yields A . T-n with n > 2 for all applied fields up to at least 14 T. A quadratic-in-temperature resistivity term, however, can be extracted when assuming an additional electron-scattering channel from magnonlike excitations, with A tending to be divergent upon approaching the critical regime. Our observations suggest CePdAl to be a new playground for exotic physics arising from the competition between Kondo screening and geometrical frustration.