Universal magnetic properties of La2-SrCuO4 at intermediate temperatures

Andrey V. Chubukov, Subir Sachdev

Research output: Contribution to journalArticlepeer-review

156 Scopus citations

Abstract

We present the theory of two-dimensional, clean quantum antiferromagnets with a small, positive, zero temperature (T) stiffness 5, but with the ratio kBT/s arbitrary. Universal scaling forms for the uniform susceptibility (u), correlation length, and NMR relaxation rate (1/T1) are proposed and computed in a 1/N expansion and by Monte Carlo simulations. For large kBT/s, u(T)/T and T(T) asymptote to universal values, while 1/T1(T) is nearly T independent. We find good quantitative agreement with experiments and some numerical studies on La2-SrCuO4.

Original languageEnglish (US)
Pages (from-to)169-172
Number of pages4
JournalPhysical review letters
Volume71
Issue number1
DOIs
StatePublished - 1993

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