DPG Phi
Verhandlungen
Verhandlungen
DPG

Dresden 2009 – scientific programme

Parts | Days | Selection | Search | Downloads | Help

TT: Fachverband Tiefe Temperaturen

TT 6: Postersession Correlated Electrons: (General) Theory, Low-Dimensional Systems, Kondo Physics, Heavy Fermions, Quantum-Critical Phenomena

TT 6.11: Poster

Monday, March 23, 2009, 13:00–16:45, P1A

Antiferroquadrupolar phases in U(Pd1-xPtx)3, x≤ 0.01 — •Markus Schäpers1, Matthias Bleckmann1, Dirk Schulze Grachtrup1, Stefan Süllow1, and Keith McEwen21Technsiche Universität Braunschweig, Braunschweig, Deutschland — 2University College London, London, England

The double hexagonal compound UPd3 has been shown to undergo several successive phase transitions below 8 K. These low temperature phases are antiferroquadrupolar ordered ones with different AFQ order parameters. In-field measurements on UPd3 reveal a complex response of these phases on magnetic fields, leading to a very rich magnetic phase diagram [1-3].

Here, for the first time we present resistivity measurements and a magnetic phase diagram for single crystalline lowly doped samples U(Pd1-xPtx)3, x≤ 0.01, and compare these measurements to pure UPd3. We find that doping leads to reduced ordering temperatures but leaves the underlying physics of the AFQ ordered phases unaffected

[1] Y. Tokiwa, K. Sugiyama, T. Takeuchi, M. Nakashima, R. Settai, Y. Inada, Y. Haga, E. Yamamoto, K. Kindo, H. Harima and Y. Onuki, J. Phys. Soc. Jpn. 70 (2001) 1731

[2] D. F. McMorrow, K. A. McEwen, U. Steigenberger, H. M. Rønnow and F. Yakhou, Phys. Rev. Lett. 87 (2001) 057201

[3] H. C. Walker, K. A. McEwen, D. F. McMorrow, S. B. Wilkins, F. Wastin, E. Colineau and D. Fort, Phys. Rev. Lett. 97 (2006) 137203

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2009 > Dresden