Magnetic fluctuations and two-dimensional ordering in ErBa2Cu3O7

J. W. Lynn; W. H. Li; Q. Li; H. C. Ku; H. D. Yang; R. N. Shelton

doi:10.1103/PhysRevB.36.2374

Magnetic fluctuations and two-dimensional ordering in ErBa2Cu3O7

J. W. Lynn, W. H. Li, Q. Li, H. C. Ku, H. D. Yang, R. N. Shelton

Department of Physics

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Abstract

Neutron-diffraction and small-angle scattering techniques have been used to study the magnetic properties of ErBa2Cu3O7. Below the superconducting transition of 95 K there is a decrease in the small-angle scattering, which has the correct amplitude, temperature dependence, and q dependence to be interpreted as the screening of the paramagnetic fluctuations by the superconducting electrons. At low temperatures (K) the Er moments become ordered two dimensionally, with chains of spins coupled ferromagnetically, while adjacent chains align antiparallel.

Original language	English
Pages (from-to)	2374-2377
Number of pages	4
Journal	Physical Review B
Volume	36
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.36.2374
State	Published - 1987

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abstract = "Neutron-diffraction and small-angle scattering techniques have been used to study the magnetic properties of ErBa2Cu3O7. Below the superconducting transition of 95 K there is a decrease in the small-angle scattering, which has the correct amplitude, temperature dependence, and q dependence to be interpreted as the screening of the paramagnetic fluctuations by the superconducting electrons. At low temperatures (K) the Er moments become ordered two dimensionally, with chains of spins coupled ferromagnetically, while adjacent chains align antiparallel.",

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AU - Li, Q.

AU - Ku, H. C.

AU - Yang, H. D.

AU - Shelton, R. N.

PY - 1987

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N2 - Neutron-diffraction and small-angle scattering techniques have been used to study the magnetic properties of ErBa2Cu3O7. Below the superconducting transition of 95 K there is a decrease in the small-angle scattering, which has the correct amplitude, temperature dependence, and q dependence to be interpreted as the screening of the paramagnetic fluctuations by the superconducting electrons. At low temperatures (K) the Er moments become ordered two dimensionally, with chains of spins coupled ferromagnetically, while adjacent chains align antiparallel.

AB - Neutron-diffraction and small-angle scattering techniques have been used to study the magnetic properties of ErBa2Cu3O7. Below the superconducting transition of 95 K there is a decrease in the small-angle scattering, which has the correct amplitude, temperature dependence, and q dependence to be interpreted as the screening of the paramagnetic fluctuations by the superconducting electrons. At low temperatures (K) the Er moments become ordered two dimensionally, with chains of spins coupled ferromagnetically, while adjacent chains align antiparallel.

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Magnetic fluctuations and two-dimensional ordering in ErBa2Cu3O7

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