Quantum Phase Transition in Quasi-One-Dimensional BaRu6O12

Z. Q. Mao, T. He, M. M. Rosario, K. D. Nelson, D. Okuno, B. Ueland, I. G. Deac, P. Schiffer, Y. Liu, and R. J. Cava
Phys. Rev. Lett. 90, 186601 – Published 5 May 2003

Abstract

We report the first systematic study of the electrical transport and magnetic properties of BaRu6O12, which has a quasi-one-dimensional (quasi-1D) hollandite structure. We show that BaRu6O12 is quasi-1D electronically as well. Its physical properties were found to be extremely sensitive to disorder. Furthermore, a transition from being metallic with a resistance drop around 2 K to being weakly insulating as the applied magnetic field was increased was also found. We propose that these two features are related to the possible presence of a quantum phase transition in this material system.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 21 July 2002

DOI:https://doi.org/10.1103/PhysRevLett.90.186601

©2003 American Physical Society

Authors & Affiliations

Z. Q. Mao1, T. He2, M. M. Rosario1, K. D. Nelson1, D. Okuno1, B. Ueland1, I. G. Deac1, P. Schiffer1, Y. Liu1,*, and R. J. Cava2

  • 1Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802
  • 2Department of Chemistry and Princeton Materials Institute, Princeton University, Princeton, New Jersey 08540

  • *Email address: liu@phys.psu.edu

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 90, Iss. 18 — 9 May 2003

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×