Magnetic and optical properties of Co-doped PbMoO4 single crystals

被引：0

作者：

Skibinski, T. ^{[1
]}

Kaczmarek, S. M. ^{[1
]}

Leniec, G. ^{[1
]}

Tsuboi, T. ^{[2
,3
]}

Nakai, Y. ^{[2
]}

Berkowski, M. ^{[4
]}

Kowalski, Z. ^{[1
]}

Huang, W. ^{[3
]}

机构：

[1] West Pomeranian Univ Technol, Inst Phys, Fac Mech Engn & Mechatron, PL-70310 Szczecin, Poland

[2] Kyoto Sangyo Univ, Fac Engn, Kyoto 6038555, Japan

[3] Nanjing Univ Technol, Inst Adv Mat, Nanjing 210009, Jiangsu, Peoples R China

[4] Polish Acad Sci, Inst Phys, PL-00908 Warsaw, Poland

来源：

JOURNAL OF CRYSTAL GROWTH | 2014年 / 401卷

关键词：

Crystal structure; Single crystal growth; Czochralski method; Inorganic compounds; Acousto-optics materials; Scintillators; LEAD MOLYBDATE; LUMINESCENCE;

D O I：

10.1016/j.jrcrysgro.2014.01.026

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Pure and doped with 0.2, 0.5 and 1 mot% Co2+ ions PbMoO4 single crystals are grown by the Czochralski method. The electron paramagnetic resonance (EPR) and photoluminescence (PL) are investigated at 4-300 K. It is found that weak ferromagnetic interactions with Curie Weiss temperature of 2.45 and 2.8 K are present for PbMoO4 crystals doped with 0.2 and 0.5 mol% Co2+ ions, respectively. The magnetic phase changes from ferromagnetic to antiferromagnetic at about 10 K. Two omission bands are observed at 515 and 705 nm. The red omission is attributed to MoO4 clusters perturbed by O2- vacancies. The temperature dependence of the 515 nm omission intensity shows anomalies at similar to 50 and similar to 150 K, that are suggested to arise from the trapping phenomena and thermal quenching process, respectively. (C) 2014 Elsevier EN. All rights reserved.

引用

页码：802 / 806

页数：5

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