Neutron Diffraction Study of Parasitic Nd-Moment Order in the Checkerboard-Type Phase Nd1.3Sr0.7NiO4
Abstract
In this paper, the Nd-moment order in the layered nickelate Nd2-xSrxNiO4 (x = 0.7) has been investigated by performing a neutron diffraction experiment using a single crystal sample. First, the checkerboard (CB)-type charge order was confirmed by observing the temperature dependence of the nuclear superlattice peak at Q=(5,0,0) between 1.9 and 300 K, which indicates that the transition temperature of the CB-type charge order is above 300 K. Magnetic superlattice peaks with the propagation vector k=(1-ε,0,1) appear below 67 K, and the value of ε was determined to be 0.455 in good agreement with previous studies. The intensity of the magnetic superlattice peaks appearing below 67 K shows a sharp increase below ≈20 K. This behavior indicates that the Nd moments freeze under the influence of the Ni ordering. The CB-type antiferromagnetic (AFM) Ni order in the NiO2 layers is stacked antiferromagnetically in the c-axis direction, while the Nd moments in the Nd/SrO2 layers are coupled antiferromagnetically with the Ni moments. Finally, the Nd moments are parallel to the c-axis, while the Ni moments are canted towards the c-axis direction from the basal ab-plane at low temperatures where the Nd moments are well ordered.
- Authors:
-
- Univ. of Tokyo, Tokai (Japan). Inst. for Solid-State Physics. Neutron Science Lab.
- Univ. of Tokyo (Japan). Inst. for Solid-State Physics. Neutron Science Lab.
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
- Japan Atomic Energy Agency (JAEA), Tokai (Japan). Materials and Life Science Division. J-PARC Center
- Univ. of Tokyo (Japan). Dept. of Applied Physics
- Univ. of Tokyo (Japan). Dept. of Applied Physics; RIKEN Center for Emergent Matter Science (CEMS), Wako (Japan)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1265510
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Journal of the Physical Society of Japan
- Additional Journal Information:
- Journal Volume: 84; Journal Issue: 6; Journal ID: ISSN 0031-9015
- Publisher:
- Physical Society of Japan
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Kobayashi, Riki, Yoshizawa, Hideki, Matsuda, Masaaki, Kajimoto, Ryoichi, Ishizaka, Kyoko, and Tokura, Yoshinori. Neutron Diffraction Study of Parasitic Nd-Moment Order in the Checkerboard-Type Phase Nd1.3Sr0.7NiO4. United States: N. p., 2015.
Web. doi:10.7566/JPSJ.84.064711.
Kobayashi, Riki, Yoshizawa, Hideki, Matsuda, Masaaki, Kajimoto, Ryoichi, Ishizaka, Kyoko, & Tokura, Yoshinori. Neutron Diffraction Study of Parasitic Nd-Moment Order in the Checkerboard-Type Phase Nd1.3Sr0.7NiO4. United States. https://doi.org/10.7566/JPSJ.84.064711
Kobayashi, Riki, Yoshizawa, Hideki, Matsuda, Masaaki, Kajimoto, Ryoichi, Ishizaka, Kyoko, and Tokura, Yoshinori. 2015.
"Neutron Diffraction Study of Parasitic Nd-Moment Order in the Checkerboard-Type Phase Nd1.3Sr0.7NiO4". United States. https://doi.org/10.7566/JPSJ.84.064711. https://www.osti.gov/servlets/purl/1265510.
@article{osti_1265510,
title = {Neutron Diffraction Study of Parasitic Nd-Moment Order in the Checkerboard-Type Phase Nd1.3Sr0.7NiO4},
author = {Kobayashi, Riki and Yoshizawa, Hideki and Matsuda, Masaaki and Kajimoto, Ryoichi and Ishizaka, Kyoko and Tokura, Yoshinori},
abstractNote = {In this paper, the Nd-moment order in the layered nickelate Nd2-xSrxNiO4 (x = 0.7) has been investigated by performing a neutron diffraction experiment using a single crystal sample. First, the checkerboard (CB)-type charge order was confirmed by observing the temperature dependence of the nuclear superlattice peak at Q=(5,0,0) between 1.9 and 300 K, which indicates that the transition temperature of the CB-type charge order is above 300 K. Magnetic superlattice peaks with the propagation vector k=(1-ε,0,1) appear below 67 K, and the value of ε was determined to be 0.455 in good agreement with previous studies. The intensity of the magnetic superlattice peaks appearing below 67 K shows a sharp increase below ≈20 K. This behavior indicates that the Nd moments freeze under the influence of the Ni ordering. The CB-type antiferromagnetic (AFM) Ni order in the NiO2 layers is stacked antiferromagnetically in the c-axis direction, while the Nd moments in the Nd/SrO2 layers are coupled antiferromagnetically with the Ni moments. Finally, the Nd moments are parallel to the c-axis, while the Ni moments are canted towards the c-axis direction from the basal ab-plane at low temperatures where the Nd moments are well ordered.},
doi = {10.7566/JPSJ.84.064711},
url = {https://www.osti.gov/biblio/1265510},
journal = {Journal of the Physical Society of Japan},
issn = {0031-9015},
number = 6,
volume = 84,
place = {United States},
year = {Mon May 25 00:00:00 EDT 2015},
month = {Mon May 25 00:00:00 EDT 2015}
}
Web of Science