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Single Crystal Growth and Structural Chemistry of Li1−zNi1+zO2 with z=0.075

✍ Scribed by Yasuhiko Takahashi; Junji Akimoto; Yoshito Gotoh; Kenji Kawaguchi; Susumu Mizuta


Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
476 KB
Volume
160
Category
Article
ISSN
0022-4596

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✦ Synopsis


Single crystals of the lithium nickel dioxide compound Li1؊zNi1؉zO2 with z ‫؍‬ 0.075 have been successfully synthesized by a 6ux method for the 5rst time. A single-crystal X-ray di4raction study con5rmed trigonal symmetry, R3 m space group, and the lattice parameters a ‫؍‬ 2.8899(13) A > and c ‫؍‬ 14.1938(17) A > . The cation distribution in Li0.925Ni1.075O2 was determined to be (Li0.744Ni0.256)3a[Li0.181Ni0.819]3bO2 with a 5nal R value of 2.68% using 202 independent observed re6ections. The relationships between cation distributions and structural parameters for Li1؊zNi1؉zO2 compounds have been summarized and discussed using the 37 reported structural data. The magnetization measurements of the present single crystal samples con-5rmed the history dependence of temperature versus M/H maximum at about 60 K.


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