Composition-structure-physical property relationship and nonlinear optical properties of multiferroic hexagonal ErMn1-xCrxO3 nanoparticles

Raneesh B.; Nandakumar K.; Saha A.; Das D.; Soumya H.; Philip J.; Sreekanth P.; Philip R.

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Composition-structure-physical property relationship and nonlinear optical properties of multiferroic hexagonal ErMn1-xCrxO3 nanoparticles

机译：多体六边形ERMN1-XCRXO3纳米粒子的组成 - 结构物质关系与非线性光学性能

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Nanocrystalline hexagonal ErMn1-xCrxO3 (0 <= x >= 0.15) samples have been synthesized by a citrate assisted sol-gel method to study their structural and physical properties. X-ray diffraction studies show that ErMn1-xCrxO3 samples crystallize in the hexagonal phase when the doping concentration is low, while they crystallize into mixed orthorhombic and hexagonal phases at high doping concentrations. The photopyroelectric (PPE) technique is used to determine the thermal parameters of ErMn1-xCrxO3 nanoparticles. Thermal studies indicate that phonon transport through ErMn1-xCrxO3 nanocrystallites reduces as a function of Cr concentration. Temperature dependent magnetic studies show that Cr-doped ErMnO3 have charge ordered canted (C) type antiferromagnetism (AFM) with a spin-glass transition at low temperature. The striving ferromagnetic (FM) and AFM states are expected to be responsible for the spin-glass type behaviour in Cr doped ErMnO3. Strong nonlinear optical absorption has been found when the samples are irradiated by laser pulses. The optical limiting response studied against Cr doping shows that nonlinearity varies with dopant concentration.

机译：通过柠檬酸盐辅助溶胶 - 凝胶法合成纳米晶六方ERMN1-XCRXO3（0 <= X> = 0.15）样品，以研究其结构和物理性质。 X射线衍射研究表明，当掺杂浓度低时，ERMN1-XCRXO3样品在六边形相中结晶，同时将它们在高掺杂浓度下结晶到混合的正交和六边形相中。用于确定ERMN1-XCRXO3纳米颗粒的热参数。的光学电气（PPE）技术。热研究表明，通过ERMN1-XCRXO3纳米晶体作为Cr浓度的函数降低了声子传输。温度依赖性磁性研究表明，Cr掺杂的ERMNO3具有充电有序倾致（C）型反铁磁（AFM），在低温下具有旋转玻璃化转变。预计努力铁磁性（FM）和AFM状态将负责CR掺杂ERMNO3中的旋转玻璃型行为。当样品被激光脉冲照射时，已经发现强的非线性光学吸收。研究对Cr掺杂的光学限制响应表明，非线性随着掺杂剂浓度而变化。

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来源
《RSC Advances》 |2015年第17期|共8页
作者
Raneesh B.; Nandakumar K.; Saha A.; Das D.; Soumya H.; Philip J.; Sreekanth P.; Philip R.;
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作者单位

Mahatma Gandhi Univ Int &

Inter Univ Ctr Nanosci &

Nanotechnol Kottayam 686560 Kerala India;

Mahatma Gandhi Univ Int &

Inter Univ Ctr Nanosci &

Nanotechnol Kottayam 686560 Kerala India;

UGC DAE Consortium Sci Res Kolkata 700098 India;

UGC DAE Consortium Sci Res Kolkata 700098 India;

Cochin Univ Sci &

Technol Dept Instrumentat Cochin 682022 Kerala India;

Cochin Univ Sci &

Technol Dept Instrumentat Cochin 682022 Kerala India;

Raman Res Inst Light &

Matter Phys Grp Bangalore 560080 Karnataka India;

Raman Res Inst Light &

Matter Phys Grp Bangalore 560080 Karnataka India;

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正文语种 eng
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1. Composition-structure-physical property relationship and nonlinear optical properties of multiferroic hexagonal ErMn1-xCrxO3 nanoparticles [J] . Raneesh B., Nandakumar K., Saha A., RSC Advances . 2015,第17期

机译：多体六边形ERMN1-XCRXO3纳米粒子的组成 - 结构物质关系与非线性光学性能
2. Optical properties and electronic structure of multiferroic hexagonal orthoferrites RFeO3 (R = Ho, Er, Lu) [J] . Pavlov V. V., Akbashev A. R., Kalashnikova A. M., Journal of Applied Physics . 2012,第5期

机译：六方正铁氧体RFeO3的光学性质和电子结构（R = Ho，Er，Lu）
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Composition-structure-physical property relationship and nonlinear optical properties of multiferroic hexagonal ErMn1-xCrxO3 nanoparticles

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