Quantum Impurities in the Two-Dimensional Spin One-Half Heisenberg Antiferromagnet-Reference-Cited by-同舟云学术

Quantum Impurities in the Two-Dimensional Spin One-Half Heisenberg Antiferromagnet

Published:2002-03 Issue:5560 Volume:295 Page:1691-1695
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Vajk O. P.¹,Mang P. K.²,Greven M.²³,Gehring P. M.⁴,Lynn J. W.⁴

Affiliation:

1. Department of Physics,

2. Department of Applied Physics, Stanford University, Stanford, CA 94309, USA.

3. Stanford Synchrotron Radiation Laboratory, Stanford, CA 94305, USA.

4. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.

Abstract

The study of randomness in low-dimensional quantum antiferromagnets is at the forefront of research in the field of strongly correlated electron systems, yet there have been relatively few experimental model systems. Complementary neutron scattering and numerical experiments demonstrate that the spin-diluted Heisenberg antiferromagnet La 2 Cu 1– z (Zn,Mg) z O 4 is an excellent model material for square-lattice site percolation in the extreme quantum limit of spin one-half. Measurements of the ordered moment and spin correlations provide important quantitative information for tests of theories for this complex quantum-impurity problem.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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