Antiferromagnetic form factor of Sr2CuO2Cl2

X. L. Wang; L. L. Miller; J. Ye; C. Stassis; B. N. Harmon; D. C. Johnston; A. J. Schultz; C.-K. Loong

doi:10.1063/1.344857

Antiferromagnetic form factor of Sr₂CuO₂Cl₂

X. L. Wang
, L. L. Miller
, J. Ye
, C. Stassis
, B. N. Harmon
, D. C. Johnston
, A. J. Schultz
, C.-K. Loong

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

12 Citations (Scopus)

Abstract

Neutron diffraction techniques have been used to study the antiferromagnetic form factor of Sr₂CuO₂Cl₂, which has the body-centered-tetragonal (Ι 4/mmm) K₂NiF₄-type structure (the same as that of tetragonal La₂CuO₄ but with the out-of-plane oxygens replaced by Cl and the La by Sr). The antiferromagnetic form factor was obtained at 15 K by measuring the integrated intensities of the (½ ½ 0), (½ ½ 2), (½ ½ 3), (³⁄₂³⁄₂0), (³⁄₂³⁄₂6), (³⁄₂⁵⁄₂1), (³⁄₂³⁄₂8), and (⁵⁄₂⁵⁄₂0) magnetic reflections of a single crystal of Sr₂CuO₂Cl₂. The experimentally determined magnetic form factor is similar to that of La₂CuO₄. The experimental data were compared with the Cu²⁺ magnetic form factor and with the results of band theoretical calculations. We find that the fit to the experimental data is improved if one assumes a dipolar spin polarization on the in-plane oxygen ions.

Original language	English
Pages (from-to)	4524-4526
Journal	Journal of Applied Physics
Volume	67
Issue number	9
DOIs	https://doi.org/10.1063/1.344857
Publication status	Published - 1 May 1990
Externally published	Yes

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@article{4dce4e147e604bfba05fa2b31fdf2c32,

title = "Antiferromagnetic form factor of Sr2CuO2Cl2",

abstract = "Neutron diffraction techniques have been used to study the antiferromagnetic form factor of Sr2CuO2Cl2, which has the body-centered-tetragonal (Ι 4/mmm) K2NiF4-type structure (the same as that of tetragonal La2CuO4 but with the out-of-plane oxygens replaced by Cl and the La by Sr). The antiferromagnetic form factor was obtained at 15 K by measuring the integrated intensities of the (½ ½ 0), (½ ½ 2), (½ ½ 3), (3⁄2 3⁄2 0), (3⁄2 3⁄2 6), (3⁄2 5⁄2 1), (3⁄2 3⁄2 8), and (5⁄2 5⁄2 0) magnetic reflections of a single crystal of Sr2CuO2Cl2. The experimentally determined magnetic form factor is similar to that of La2CuO4. The experimental data were compared with the Cu2+ magnetic form factor and with the results of band theoretical calculations. We find that the fit to the experimental data is improved if one assumes a dipolar spin polarization on the in-plane oxygen ions.",

author = "Wang, \{X. L.\} and Miller, \{L. L.\} and J. Ye and C. Stassis and Harmon, \{B. N.\} and Johnston, \{D. C.\} and Schultz, \{A. J.\} and C.-K. Loong",

year = "1990",

month = may,

day = "1",

doi = "10.1063/1.344857",

language = "English",

volume = "67",

pages = "4524--4526",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Antiferromagnetic form factor of Sr2CuO2Cl2

AU - Wang, X. L.

AU - Miller, L. L.

AU - Ye, J.

AU - Stassis, C.

AU - Harmon, B. N.

AU - Johnston, D. C.

AU - Schultz, A. J.

AU - Loong, C.-K.

PY - 1990/5/1

Y1 - 1990/5/1

N2 - Neutron diffraction techniques have been used to study the antiferromagnetic form factor of Sr2CuO2Cl2, which has the body-centered-tetragonal (Ι 4/mmm) K2NiF4-type structure (the same as that of tetragonal La2CuO4 but with the out-of-plane oxygens replaced by Cl and the La by Sr). The antiferromagnetic form factor was obtained at 15 K by measuring the integrated intensities of the (½ ½ 0), (½ ½ 2), (½ ½ 3), (3⁄2 3⁄2 0), (3⁄2 3⁄2 6), (3⁄2 5⁄2 1), (3⁄2 3⁄2 8), and (5⁄2 5⁄2 0) magnetic reflections of a single crystal of Sr2CuO2Cl2. The experimentally determined magnetic form factor is similar to that of La2CuO4. The experimental data were compared with the Cu2+ magnetic form factor and with the results of band theoretical calculations. We find that the fit to the experimental data is improved if one assumes a dipolar spin polarization on the in-plane oxygen ions.

AB - Neutron diffraction techniques have been used to study the antiferromagnetic form factor of Sr2CuO2Cl2, which has the body-centered-tetragonal (Ι 4/mmm) K2NiF4-type structure (the same as that of tetragonal La2CuO4 but with the out-of-plane oxygens replaced by Cl and the La by Sr). The antiferromagnetic form factor was obtained at 15 K by measuring the integrated intensities of the (½ ½ 0), (½ ½ 2), (½ ½ 3), (3⁄2 3⁄2 0), (3⁄2 3⁄2 6), (3⁄2 5⁄2 1), (3⁄2 3⁄2 8), and (5⁄2 5⁄2 0) magnetic reflections of a single crystal of Sr2CuO2Cl2. The experimentally determined magnetic form factor is similar to that of La2CuO4. The experimental data were compared with the Cu2+ magnetic form factor and with the results of band theoretical calculations. We find that the fit to the experimental data is improved if one assumes a dipolar spin polarization on the in-plane oxygen ions.

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U2 - 10.1063/1.344857

DO - 10.1063/1.344857

M3 - RGC 21 - Publication in refereed journal

SN - 0021-8979

VL - 67

SP - 4524

EP - 4526

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 9

ER -