Optical study on the possible Slater insulator SrIr_(0.8)Sn_(0.2)O_3

Zheng P.; Cui Q.; Chen Z. G.; Cheng J. G.; Liu X.; Wang Z. Q.; Luo J. L.

首页> 外文期刊>Physical review >Optical study on the possible Slater insulator SrIr_(0.8)Sn_(0.2)O_3

【24h】

Optical study on the possible Slater insulator SrIr_(0.8)Sn_(0.2)O_3

机译：对可能的壁板绝缘体SRIR_（0.8）SN_（0.2）O_3的光学研究

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

The orthorhombic perovskite iridate SrIr0.8Sn0.2O3 is reported to be a new candidate of Slater insulator at low temperatures. Here, we present optical spectroscopy measurements on SrIr0.8Sn0.2O3 at different temperatures (T) across the paramagnetic-antiferromagnetic phase transition. The low energy reflectivity decreases with reducing T . Six phonon peaks in the spectrum at low T are visible at room temperature, indicating the absence of crystal structure phase transition from 300 K to 10 K. The real part of conductivity spectra sigma(1)(omega) are obtained by employing the standard Kramers-Kronig transformation. In the paramagnetic state at room temperature, sigma(1)(omega) reaches a limiting value as omega - 0, implying an electrical conducting state. Upon decreasing T, the low frequency sigma(1)(omega) decreases and approaches zero with a concomitant opening of a direct gap. Detailed analysis of the low energy data shows that the gap opening is continuous and sigma(1)(omega) at the low energy gap edge follows an unusual omega(1/2). dependence at low temperatures which is remarkably similar to other Slater insulators, such as NaOsO3.

机译：据报道，正晶钙钙钛矿抗SRIR0.8SN0.2O3是低温下的莱特拉特绝缘体的新候选者。这里，我们在顺磁 - 反铁磁相转变的不同温度（t）上呈现SRIR0.8SN0.2O3上的光学光谱测量。低能量反射率降低了减少T.在室温下，低T的光谱中的六个声子峰可见，表示不存在从300k至10k的晶体结构相转变。通过使用标准克拉姆获得电导率光谱σ（1）（Omega）的实部-Kronig转换。在室温下的顺磁状态下，Sigma（1）（OMEGA）达到极限值，例如ω-> 0，暗示导电状态。在降低T时，低频Sigma（1）（OMEGA）降低并通过伴随的直接间隙的开口来降低零。低能量数据的详细分析表明，间隙开度是连续的，并且在低能量间隙边缘处的σ（1）（Omega）遵循不寻常的ω（1/2）。依赖于低温，这与其他类似的壁图绝缘体（例如Naoso3）相似。

著录项

来源
《Physical review》 |2019年第4期|045101.1-045101.6|共6页
作者
Zheng P.; Cui Q.; Chen Z. G.; Cheng J. G.; Liu X.; Wang Z. Q.; Luo J. L.;
展开▼
作者单位

Chinese Acad Sci Inst Phys Beijing Natl Lab Condensed Matter Phys Beijing 100190 Peoples R China;

Chinese Acad Sci Inst Phys Beijing Natl Lab Condensed Matter Phys Beijing 100190 Peoples R China|Univ Chinese Acad Sci Sch Phys Sci Beijing 100190 Peoples R China;

Chinese Acad Sci Inst Phys Beijing Natl Lab Condensed Matter Phys Beijing 100190 Peoples R China;

Chinese Acad Sci Inst Phys Beijing Natl Lab Condensed Matter Phys Beijing 100190 Peoples R China|Univ Chinese Acad Sci Sch Phys Sci Beijing 100190 Peoples R China|Songshan Lake Mat Lab Dongguan 523808 Guangdong Peoples R China;

Chinese Acad Sci Inst Phys Beijing Natl Lab Condensed Matter Phys Beijing 100190 Peoples R China|ShanghaiTech Univ Sch Phys Sci & Technol Shanghai 201210 Peoples R China;

Boston Coll Dept Phys Chestnut Hill MA 02467 USA;

Chinese Acad Sci Inst Phys Beijing Natl Lab Condensed Matter Phys Beijing 100190 Peoples R China|Univ Chinese Acad Sci Sch Phys Sci Beijing 100190 Peoples R China|Songshan Lake Mat Lab Dongguan 523808 Guangdong Peoples R China;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词

相似文献

外文文献
中文文献
专利

1. Optical study on the possible Slater insulator SrIr_(0.8)Sn_(0.2)O_3 [J] . Zheng P., Cui Q., Chen Z. G., Physical review . 2019,第4期

机译：可能的Slater绝缘子SrIr_（0.8）Sn_（0.2）O_3的光学研究
2. Studies on gas sensing performance of (Ba_(0.8)Sr_(0.2))(Sn_(0.8)Ti_(0.2))O_3 thick film resistors [J] . G.H. Jain, L.A. Patil, V.B. Gaikwad Sensors and Actuators. B, Chemical . 2007,第2期

机译：（Ba_（0.8）Sr_（0.2））（Sn_（0.8）Ti_（0.2））O_3厚膜电阻器的气敏性能研究
3. Optical study on the possible Slater insulator SrIr0.8Sn0.2O3 [J] . Zheng P., Cui Q., Chen Z. G., Physical review, B . 2019,第4期

机译：可能的叠层绝缘子SRIR0.8SN0.2O3的光学研究
4. Studies on Gas Sensing Performance of (Ba_(0.8)Sr_(0.2))(Sn_(0.8)Ti_(0.2))O_3 Thick Film Resistors [C] . V. Gaikwad, L. Patil Materials science amp; technology 2008 conference and exhibition (MSamp;T'08): the leading forum addressing structure, properties, processing and performance across the materials community . 2008

机译：（Ba_（0.8）Sr_（0.2））（Sn_（0.8）Ti_（0.2））O_3厚膜电阻器的气敏性能研究
5. Kinetic studies and material characterization of the mixed metal oxides La(1-x)Sr(x)CrO(3) and SrCo(0.8)Fe(0.2)O(3-delta) (Lanthanum chromites, Strontium cobalt iron oxide). [D] . Wagner, Aaron Lewis. 1999

机译：混合金属氧化物La（1-x）Sr（x）CrO（3）和SrCo（0.8）Fe（0.2）O（3-delta）（亚铬酸镧，锶钴铁氧化物）的动力学研究和材料表征。
6. Development by Mechanochemistry of La0.8Sr0.2Ga0.8Mg0.2O2.8 Electrolyte for SOFCs [O] . Francisco J. Garcia-Garcia, Yunqing Tang, Francisco J. Gotor, 2020

机译：机械化学方法开发用于燃料电池的La0.8Sr0.2Ga0.8Mg0.2O2.8电解质
7. Exchange Bias in BiFe_{0.8}Mn_{0.2}O_3 Nanoparticles with an Antiferromagnetic Core and a Diluted Antiferromagnetic Shell [O] . Manna, P. K., Yusuf, S. M., Shukla, R., 2011

机译：BiFe_ {0.8} mn_ {0.2} O_3纳米粒子中的交换偏压反铁磁芯和稀释的反铁磁壳

Optical study on the possible Slater insulator SrIr_(0.8)Sn_(0.2)O_3

摘要

著录项

相似文献

相关主题

期刊订阅