Ordering due to quantum fluctuations in Sr2Cu3O4Cl2

Y. J. Kim; A. Aharony; R. J. Birgeneau; F. C. Chou; O. Entin-Wohlman; R. W. Erwin; M. Greven; A. B. Harris; M. A. Kastner; I. Ya Korenblit; Y. S. Lee; G. Shirane

doi:10.1103/PhysRevLett.83.852

Ordering due to quantum fluctuations in Sr₂Cu₃O₄C_l2

Y. J. Kim, A. Aharony, R. J. Birgeneau, F. C. Chou, O. Entin-Wohlman, R. W. Erwin, M. Greven, A. B. Harris, M. A. Kastner, I. Ya Korenblit, Y. S. Lee, G. Shirane

Research output: Contribution to journal › Article › peer-review

65 Scopus citations

Abstract

Sr₂Cu₃O₄C_l2 has Cu_I and Cu_II subsystems, forming interpenetrating S=1/2 square lattice Heisenberg antiferromagnets. The classical ground state is degenerate, due to frustration of the intersubsystem interactions. Magnetic neutron scattering experiments show that quantum fluctuations cause a two dimensional Ising ordering of the Cu_II’s, lifting the degeneracy, and a dramatic increase of the Cu_I out-of-plane spin-wave gap, unique for order out of disorder. The spin-wave energies are quantitatively predicted by calculations which include quantum fluctuations.

Original language	English
Pages (from-to)	852-855
Number of pages	4
Journal	Physical Review Letters
Volume	83
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.83.852
State	Published - 1 Jan 1999
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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@article{8251a8dcf1954936ae57ff7164ec411b,

title = "Ordering due to quantum fluctuations in Sr2Cu3O4Cl2",

abstract = "Sr2Cu3O4Cl2 has CuI and CuII subsystems, forming interpenetrating S=1/2 square lattice Heisenberg antiferromagnets. The classical ground state is degenerate, due to frustration of the intersubsystem interactions. Magnetic neutron scattering experiments show that quantum fluctuations cause a two dimensional Ising ordering of the CuII{\textquoteright}s, lifting the degeneracy, and a dramatic increase of the CuI out-of-plane spin-wave gap, unique for order out of disorder. The spin-wave energies are quantitatively predicted by calculations which include quantum fluctuations.",

author = "Kim, {Y. J.} and A. Aharony and Birgeneau, {R. J.} and Chou, {F. C.} and O. Entin-Wohlman and Erwin, {R. W.} and M. Greven and Harris, {A. B.} and Kastner, {M. A.} and Korenblit, {I. Ya} and Lee, {Y. S.} and G. Shirane",

year = "1999",

month = jan,

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doi = "10.1103/PhysRevLett.83.852",

language = "English",

volume = "83",

pages = "852--855",

journal = "Physical Review Letters",

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TY - JOUR

T1 - Ordering due to quantum fluctuations in Sr2Cu3O4Cl2

AU - Kim, Y. J.

AU - Aharony, A.

AU - Birgeneau, R. J.

AU - Chou, F. C.

AU - Entin-Wohlman, O.

AU - Erwin, R. W.

AU - Greven, M.

AU - Harris, A. B.

AU - Kastner, M. A.

AU - Korenblit, I. Ya

AU - Lee, Y. S.

AU - Shirane, G.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Sr2Cu3O4Cl2 has CuI and CuII subsystems, forming interpenetrating S=1/2 square lattice Heisenberg antiferromagnets. The classical ground state is degenerate, due to frustration of the intersubsystem interactions. Magnetic neutron scattering experiments show that quantum fluctuations cause a two dimensional Ising ordering of the CuII’s, lifting the degeneracy, and a dramatic increase of the CuI out-of-plane spin-wave gap, unique for order out of disorder. The spin-wave energies are quantitatively predicted by calculations which include quantum fluctuations.

AB - Sr2Cu3O4Cl2 has CuI and CuII subsystems, forming interpenetrating S=1/2 square lattice Heisenberg antiferromagnets. The classical ground state is degenerate, due to frustration of the intersubsystem interactions. Magnetic neutron scattering experiments show that quantum fluctuations cause a two dimensional Ising ordering of the CuII’s, lifting the degeneracy, and a dramatic increase of the CuI out-of-plane spin-wave gap, unique for order out of disorder. The spin-wave energies are quantitatively predicted by calculations which include quantum fluctuations.

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U2 - 10.1103/PhysRevLett.83.852

DO - 10.1103/PhysRevLett.83.852

M3 - Article

AN - SCOPUS:0001183161

SN - 0031-9007

VL - 83

SP - 852

EP - 855

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

ER -

Ordering due to quantum fluctuations in Sr₂Cu₃O₄C_l2

Abstract

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