User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse




Journal Article

Pressure versus magnetic-field tuning of a magnetic quantum phase transition


Stockert,  O.
Oliver Stockert, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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

Stockert, O., Huster, F., Neubert, A., Pfleiderer, C., Pietrus, T., Will, B., et al. (2002). Pressure versus magnetic-field tuning of a magnetic quantum phase transition. Physica B, 312, 458-460. doi:10.1016/S0921-4526(01)01142-5.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0015-319F-4
The low temperature properties of CeCu6-xAux show different behavior at the quantum phase transition depending on how the long-range antiferromagnetic order is suppressed. Tuning by hydrostatic pressure p results in a temperature dependence of the specific heat C(T) and the electrical resistivity rho(T) as C/T = a ln(T-0/T) and rho approximate to rho(0) + A'T, while C/T = gamma(0) - a'T-0.5 and rho approximate to rho(0) + A"T- 1.5 when tuned by applying a magnetic field B. The magnetic (p, T) and (B, T) phase diagrams as inferred from specific heat, electrical resistivity and neutron diffraction measurements are distinctly different. These findings suggest that the spectra of the low-lying magnetic fluctuations near these quantum phase transitions differ. (C) 2002 Elsevier Science B.V. All rights reserved.