• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Scientific Reports >Pyrocurrent anomalies and intrinsic magnetodielectric behavior near room temperature in Li2Ni2Mo3O12 a compound with distorted honeycomb and spin-chains
【2h】

Pyrocurrent anomalies and intrinsic magnetodielectric behavior near room temperature in Li2Ni2Mo3O12 a compound with distorted honeycomb and spin-chains

机译：蜂窝和自旋链扭曲的化合物Li2Ni2Mo3O12在室温附近的热流异常和固有磁电行为

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Keeping current interests to identify materials with intrinsic magnetodielectric behaviour near room temperature and with novel pyroelectric current anomalies, we report temperature and magnetic-field dependent behavior of complex dielectric permittivity and pyroelectric current for an oxide, Li2Ni2Mo3O12, containing magnetic ions with (distorted) honey-comb and chain arrangement and ordering magnetically below 8 K. The dielectric data reveal the existence of relaxor ferroelectricity behaviour in the range 160–240 K and there are corresponding Raman mode anomalies as well in this temperature range. Pyrocurrent behavior is also consistent with this interpretation, with the pyrocurrent peak-temperature interestingly correlating with the poling temperature. 7Li NMR offer an evidence for crystallographic disorder intrinsic to this compound and we therefore conclude that such a disorder is apparently responsible for the randomness of local electric field leading to relaxor ferroelectric property. Another observation of emphasis is that there is a notable decrease in the dielectric constant with the application of magnetic field to the tune of about −2.4% at 300 K, with the magnitude varying marginally with temperature. Small loss factor values validate the intrinsic behaviour of the magnetodielectric effect at room temperature.
机译：保持当前的兴趣以识别在室温附近具有固有磁电行为并具有新颖热释电电流异常的材料，我们报告了氧化物（Li2Ni2Mo3O12）中含有磁离子（变形）的氧化物的复介电常数和热电流的温度和磁场相关行为。低于8 andK的梳状和链状排列和磁性排序。介电数据显示在160–240 K范围内存在弛豫铁电行为，并且在此温度范围内也存在相应的拉曼模式异常。热电流行为也与此解释一致，热电流峰值温度有趣地与极化温度相关。 7 Li NMR为该化合物固有的晶体学无序提供了证据，因此我们得出结论，这种无序显然与导致弛豫铁电特性的局部电场的随机性有关。另一个强调的观察结果是，在300 K下，施加磁场至约-2.4％的曲率时，介电常数会显着下降，其幅度会随温度而略有变化。小的损耗因子值可验证室温下磁电效应的固有行为。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号