Growth, structure and physical properties of nonlinear K2Ba(NO3)4 crystals

被引：6

作者：

Korzhneva, K. E. ^{[1
,2
]}

Kidyarov, B. I. ^{[3
]}

Isaenko, L. I. ^{[1
,2
]}

Zherebtsov, D. A. ^{[4
]}

Sharutin, V. V. ^{[4
]}

Yelisseyev, A. P. ^{[1
,2
]}

Pervukhina, N. V. ^{[5
]}

Tarasova, A. Yu. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, 3 Ac Koptyug Ave, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, 2 Pirogova St, Novosibirsk 630090, Russia

[3] Russian Acad Sci, Siberian Branch, AV Rzhanov Inst Semicond Phys, 13 Ac Lavrentiev Ave, Novosibirsk 630090, Russia

[4] South Ural State Univ, 76 Lenin Ave, Chelyabinsk 454080, Russia

[5] Russian Acad Sci, Siberian Branch, AV Nikolaev Inst Inorgan Chem, 3 Ac Lavrentiev Ave, Novosibirsk 630090, Russia

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2019年 / 274卷

基金：

俄罗斯基础研究基金会;

关键词：

Non-centrosymmetric K2Ba(NO3)(4) crystals; Crystal structure; Thermal analyses; Optical transmission spectra; NITRATE;

D O I：

10.1016/j.jssc.2019.01.037

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Transparent crystals of K2Ba(NO3)(4) were obtained from water solution. The phase diagram of the Ba(NO3)(2)-KNO3-H2O system was constructed on the basis of experimental data, using X-ray phase analysis. For the first time the crystal structure of K2Ba(NO3)(4) was determined as tetragonal (I-42m) with unit cell parameters a = b = 8,3126(7) angstrom, c = 7,7711(6) angstrom, V = 536,988 angstrom(3). It was found that K2Ba(NO3)(4) is irreversibly decomposed into KNO3 and Ba(NO3)(2) with decomposition temperature 197.3 degrees C. K2Ba(NO3)(4) crystal is transparent in the range of 0.25-2.2 mu m, where an absorption peak with the maximum at 0.3 mu m is observed. The band gap is about 5 eV.

引用

页码：52 / 57

页数：6

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