• Featured in Physics
  • Editors' Suggestion
  • Rapid Communication

Dimensional crossover in a spin-liquid-to-helimagnet quantum phase transition

V. O. Garlea, A. Zheludev, K. Habicht, M. Meissner, B. Grenier, L.-P. Regnault, and E. Ressouche
Phys. Rev. B 79, 060404(R) – Published 11 February 2009
Physics logo See Synopsis: A quantum phase transition for a spin liquid

Abstract

Neutron scattering is used to study magnetic-field-induced ordering in the quasi-one-dimensional quantum spin-tube compound Sul-Cu2Cl4 that in zero field has a nonmagnetic spin-liquid ground state. The experiments reveal an incommensurate chiral high-field phase stabilized by a geometric frustration of the magnetic interactions. The measured critical exponents β0.235 and ν0.34 at Hc3.7T point to an unusual subcritical scaling regime and may reflect the chiral nature of the quantum critical point.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 1 December 2008

DOI:https://doi.org/10.1103/PhysRevB.79.060404

©2009 American Physical Society

Synopsis

Key Image

A quantum phase transition for a spin liquid

Published 12 February 2009

Researchers report an unusual critical scaling regime in a material that goes from a spin liquid to a spiral magnet upon application of a magnetic field.

See more in Physics

Authors & Affiliations

V. O. Garlea* and A. Zheludev

  • Neutron Scattering Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

K. Habicht and M. Meissner

  • BENSC, Hahn-Meitner Institut, D-14109 Berlin, Germany

B. Grenier, L.-P. Regnault, and E. Ressouche

  • CEA-Grenoble, INAC-SPSMS-MDN, 17 Rue des Martyrs, 38054 Grenoble Cedex 9, France

  • *garleao@ornl.gov

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 79, Iss. 6 — 1 February 2009

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 B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×