High-Pressure Synthesis of Lu 2 NiIrO 6 with Ferrimagnetism and Large Coercivity
Document Type
Article
Publication Date
1-7-2019
Abstract
Double-perovskite Lu 2 NiIrO 6 was synthesized at high pressure (6 GPa) and high temperature (1300 °C). Synchrotron powder X-ray diffraction indicates that its structure is a monoclinic double perovskite (space group P2 1 /n) with a small, 11% Ni/Ir antisite disorder. X-ray absorption near-edge spectroscopy measurements established Ni 2 and Ir 4 formal oxidation states. Magnetic studies indicate a ferrimagnetic transition at 207 K. The low-temperature magnetization curve of Lu 2 NiIrO 6 features broad hysteresis with a coercive field as high as 48 kOe. These results encourage the search for hard magnets in the class of 3d/5d double-perovskite oxides.
Identifier
85059649506 (Scopus)
Publication Title
Inorganic Chemistry
External Full Text Location
https://doi.org/10.1021/acs.inorgchem.8b02557
e-ISSN
1520510X
ISSN
00201669
PubMed ID
30557015
First Page
397
Last Page
404
Issue
1
Volume
58
Grant
1507252
Fund Ref
National Science Foundation
Recommended Citation
Feng, Hai L.; Deng, Zheng; Wu, Meixia; Croft, Mark; Lapidus, Saul H.; Liu, Sizhan; Tyson, Trevor A.; Ravel, Bruce D.; Quackenbush, Nicholas F.; Frank, Corey E.; Jin, Changqing; Li, Man Rong; Walker, David; and Greenblatt, Martha, "High-Pressure Synthesis of Lu 2 NiIrO 6 with Ferrimagnetism and Large Coercivity" (2019). Faculty Publications. 7854.
https://digitalcommons.njit.edu/fac_pubs/7854
