Freezing of a Stripe Liquid

S. -H. Lee; J. M. Tranquada; K. Yamada; D. J. Buttrey; Q. Li; S. -W. Cheong

doi:10.1103/PhysRevLett.88.126401

Freezing of a Stripe Liquid

Strongly Correlated Electrons 2009-11-07 v2

Authors: S. -H. Lee , J. M. Tranquada , K. Yamada , D. J. Buttrey , Q. Li , S. -W. Cheong

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Abstract

The existence of a stripe-liquid phase in a layered nickelate, La(1.725)Sr(0.275)NiO(4), is demonstrated through neutron scattering measurements. We show that incommensurate magnetic fluctuations evolve continuously through the charge-ordering temperature, although an abrupt decrease in the effective damping energy is observed on cooling through the transition. The energy and momentum dependence of the magnetic scattering are parametrized with a damped-harmonic-oscillator model describing overdamped spin-waves in the antiferromagnetic domains defined instantaneously by charge stripes.

Keywords

stripe liquid neutron scattering incommensurate magnetic fluctuations charge ordering damped harmonic oscillator

Cite

@article{arxiv.cond-mat/0110191,
  title  = {Freezing of a Stripe Liquid},
  author = {S. -H. Lee and J. M. Tranquada and K. Yamada and D. J. Buttrey and Q. Li and S. -W. Cheong},
  journal= {arXiv preprint arXiv:cond-mat/0110191},
  year   = {2009}
}

Comments

4 2-col pages, including 5 figures; Final version, to be published in PRL

Freezing of a Stripe Liquid

Abstract

Keywords

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