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Title: Crystal structure and partial Ising-like magnetic ordering of orthorhombic D y 2 Ti O 5

Abstract

The structure and magnetic properties of orthorhombic Dy2TiO5 have been investigated using x-ray diffraction, neutron diffraction, and alternating current (ac)/direct current (dc) magnetic susceptibility measurements. In this paper, we report a continuous structural distortion below 100 K characterized by negative thermal expansion in the [0 1 0] direction. Neutron diffraction and magnetic susceptibility measurements revealed that two-dimensional (2D) magnetic ordering begins at 3.1 K, which is followed by a three-dimensional magnetic transition at 1.7 K. The magnetic structure has been solved through a representational analysis approach and can be indexed with the propagation vector k = [0 1/2 0]. The spin structure corresponds to a coplanar model of interwoven 2D “sheets” extending in the [0 1 0] direction. The local crystal field is different for each Dy3+ ion (Dy1 and Dy2), one of which possesses strong uniaxial symmetry indicative of Ising-like magnetic ordering. In conclusion, consequently, two succeeding transitions under magnetic field are observed in the ac susceptibility, which are associated with flipping each Dy3+ spin independently.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [3];  [7]
  1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Nuclear Engineering. Dept. of Physics and Astronomy
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
  3. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  4. Florida State Univ., Tallahassee, FL (United States). Dept. of Physics. National High Magnet Field Lab.
  5. Florida State Univ., Tallahassee, FL (United States). Dept. of Physics
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical and Engineering Materials Division. Spallation Neutron Source
  7. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Nuclear Engineering
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States); Florida State Univ., Tallahassee, FL (United States); Energy Frontier Research Centers (EFRC) (United States). Materials Science of Actinides (MSA)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Univ. of Tennessee (United States); National Science Foundation (NSF); State of Florida (United States)
OSTI Identifier:
1346627
Alternate Identifier(s):
OSTI ID: 1261704
Grant/Contract Number:  
AC05-00OR22725; SC0001089; DMR-1350002; DMR-1157490
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 94; Journal Issue: 2; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Shamblin, Jacob, Calder, Stuart, Dun, Zhiling, Lee, Minseong, Choi, Eun Sang, Neuefeind, Joerg, Zhou, Haidong, and Lang, Maik. Crystal structure and partial Ising-like magnetic ordering of orthorhombic Dy2TiO5. United States: N. p., 2016. Web. doi:10.1103/PhysRevB.94.024413.
Shamblin, Jacob, Calder, Stuart, Dun, Zhiling, Lee, Minseong, Choi, Eun Sang, Neuefeind, Joerg, Zhou, Haidong, & Lang, Maik. Crystal structure and partial Ising-like magnetic ordering of orthorhombic Dy2TiO5. United States. doi:10.1103/PhysRevB.94.024413.
Shamblin, Jacob, Calder, Stuart, Dun, Zhiling, Lee, Minseong, Choi, Eun Sang, Neuefeind, Joerg, Zhou, Haidong, and Lang, Maik. Tue . "Crystal structure and partial Ising-like magnetic ordering of orthorhombic Dy2TiO5". United States. doi:10.1103/PhysRevB.94.024413. https://www.osti.gov/servlets/purl/1346627.
@article{osti_1346627,
title = {Crystal structure and partial Ising-like magnetic ordering of orthorhombic Dy2TiO5},
author = {Shamblin, Jacob and Calder, Stuart and Dun, Zhiling and Lee, Minseong and Choi, Eun Sang and Neuefeind, Joerg and Zhou, Haidong and Lang, Maik},
abstractNote = {The structure and magnetic properties of orthorhombic Dy2TiO5 have been investigated using x-ray diffraction, neutron diffraction, and alternating current (ac)/direct current (dc) magnetic susceptibility measurements. In this paper, we report a continuous structural distortion below 100 K characterized by negative thermal expansion in the [0 1 0] direction. Neutron diffraction and magnetic susceptibility measurements revealed that two-dimensional (2D) magnetic ordering begins at 3.1 K, which is followed by a three-dimensional magnetic transition at 1.7 K. The magnetic structure has been solved through a representational analysis approach and can be indexed with the propagation vector k = [0 1/2 0]. The spin structure corresponds to a coplanar model of interwoven 2D “sheets” extending in the [0 1 0] direction. The local crystal field is different for each Dy3+ ion (Dy1 and Dy2), one of which possesses strong uniaxial symmetry indicative of Ising-like magnetic ordering. In conclusion, consequently, two succeeding transitions under magnetic field are observed in the ac susceptibility, which are associated with flipping each Dy3+ spin independently.},
doi = {10.1103/PhysRevB.94.024413},
journal = {Physical Review B},
number = 2,
volume = 94,
place = {United States},
year = {2016},
month = {7}
}

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