Physical and Spectral Investigations of Cu2+-Doped Alkali Zinc Borate Glasses

被引：19
|
作者：
Rao, T. Raghavendra [2 ]
Krishna, Ch. Rama [2 ]
Thampy, U. S. Udayachandran [2 ]
Reddy, Ch. Venkata [2 ]
Reddy, Y. P. [3 ]
Rao, P. Sambasiva [1 ]
Ravikumar, R. V. S. S. N. [2 ]
机构：
[1] Pondicherry Univ, Dept Chem, Pondicherry 605014, India
[2] Acharya Nagarjuna Univ, Dept Phys, Nagarjuna Nagar 522510, Andhra Pradesh, India
[3] Sri Padmavati Mahila Viswavidyalayam, Tirupati 517502, Andhra Pradesh, India
来源：
APPLIED MAGNETIC RESONANCE | 2011年 / 40卷 / 03期
关键词：
ELECTRON-SPIN-RESONANCE; MICROWAVE DIELECTRIC-PROPERTIES; CADMIUM PHOSPHATE-GLASSES; OPTICAL-ABSORPTION; PARAMAGNETIC-RESONANCE; SPECTROSCOPIC INVESTIGATIONS; LI2O-NA2O-B2O3; GLASSES; OXIDE GLASSES; ION-TRANSPORT; BORON OXIDE;
D O I：
10.1007/s00723-011-0208-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
Physical and spectral studies on 20ZnO + xLi(2)O + (30-x)Na2O + 50B(2)O(3) (5 <= x >= 25) doped with 0.1 mol% of paramagnetic CuO impurity are carried out. Powder X-ray diffraction patterns of the glass samples confirm the amorphous nature. The physical parameters of all the glasses were also evaluated with respect to the composition. The electron paramagnetic resonance spectra of all these glasses exhibit resonance signals that are characteristic of Cu2+ ions. The optical absorption spectra also confirm the Cu2+ ion in tetragonally elongated octahedral site. Various crystal field, spin-Hamiltonian and bonding parameters are evaluated. It is observed that the mixed alkali effect is significant.
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收藏
页码：339 / 350
页数：12
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