physica status solidi (b)最新文献_第8页

First‐Principles Studies of Electronic Structures and Optical Properties of Cobalt‐Doped VO2 掺杂钴的VO2的电子结构和光学性质的第一性原理研究

physica status solidi (b) Pub Date : 2023-07-01 DOI: 10.1002/pssb.202300240

Jinyu Wan, Xuejiao Li

{"title":"First‐Principles Studies of Electronic Structures and Optical Properties of Cobalt‐Doped VO2","authors":"Jinyu Wan, Xuejiao Li","doi":"10.1002/pssb.202300240","DOIUrl":"https://doi.org/10.1002/pssb.202300240","url":null,"abstract":"First‐principles calculations based on density functional theory (DFT) are used to investigate the phase transition characteristics, electronic structures, and optical properties of pure and Co‐doped VO2 (M1 and R phase). Studies show that the metal‐to‐insulator phase transition temperature of VO2 is significantly reduced after Co doping, which is correlated to the decrease of bandgap value. Besides, the decrease of the energy required for electron transition of M1‐phase Co‐doped VO2 corresponds to the imaginary part of the dielectric peak moving to the low‐energy region. For both the M1‐ and R‐phase VO2, the visible light transmissivity of the Co‐doped VO2 is increased than that of pure VO2, which is beneficial to the application of VO2 film as visible windows. In addition, the absorptivity and reflectivity of Co‐doped R‐phase VO2 in the infrared light range are larger than those of M1‐phase VO2, indicating that the Co‐doped VO2 can block more infrared light at higher temperature to fulfill the purpose of lowering temperature. Overall, these results give new insights for the application of Co‐doped VO2 as a photoenergy material to regulate the room temperature.","PeriodicalId":20107,"journal":{"name":"physica status solidi (b)","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74537910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spin–Charge Conversion in Hybrid Structure PbZrO3/Y3Fe5O12/Pt 杂化结构PbZrO3/Y3Fe5O12/Pt的自旋-电荷转换

physica status solidi (b) Pub Date : 2023-07-01 DOI: 10.1002/pssb.202300134

Rui Yu, Yong Wang, Teng Li, Feng Chen, Jiefeng Cao, F. Zhu, Xiangzhi Zhang, R. Tai

{"title":"Spin–Charge Conversion in Hybrid Structure PbZrO3/Y3Fe5O12/Pt","authors":"Rui Yu, Yong Wang, Teng Li, Feng Chen, Jiefeng Cao, F. Zhu, Xiangzhi Zhang, R. Tai","doi":"10.1002/pssb.202300134","DOIUrl":"https://doi.org/10.1002/pssb.202300134","url":null,"abstract":"Multifunctional oxide heterostructures exhibiting magnetoelectric properties show great potential in advanced applications which are attracting a number of recent investigations. Herein, hybrid structures are presented including the antiferroelectricity film PbZrO3 (PZO) and the ferrimagnetic insulator (FMI) yttrium iron garnet (Y3Fe5O12, (YIG)) film by means of pulse laser deposition and magnetron sputtering, respectively. A visible double ferroelectricity hysteresis loop for PZO at low electrical field and the distinct X‐ray magnetic circular dichroism (XMCD) spectra for YIG are obtained. To study the spin current transfer processes between platinum (Pt) and the PZO/YIG system, the Pt film is deposited on the PZO/YIG bilayers as the conversion detector and the spin–charge conversion voltage can be obtained via inverse spin Hall effect (ISHE) under thermal gradient excitation. These results indicate that the hybrid structure PZO/YIG/Pt provides a potential route to realize an electric field control of spin–charge conversion and is instructive for future low‐power multiferroic heterostructures‐based spintronic devices.","PeriodicalId":20107,"journal":{"name":"physica status solidi (b)","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73306904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Backside Absorbing Layer Microscopy: Monolayer Counting in 2D Crystal Flakes 背面吸收层显微镜:单层计数在二维晶体片

physica status solidi (b) Pub Date : 2023-07-01 DOI: 10.1002/pssb.202300068

D. Ausserré, Refahi Abou Khachfe, T. Taniguchi, Kenji Watanabe, F. Vialla

引用次数: 0

Crystal Structure, Electronic Structure, the Density of States, Optical Properties, and Superconducting Transition Temperature of ZrBeSi Crystal under Pressure 压力下ZrBeSi晶体的晶体结构、电子结构、态密度、光学性质和超导转变温度

physica status solidi (b) Pub Date : 2023-06-27 DOI: 10.1002/pssb.202300196

Yu-Huan Li

{"title":"Crystal Structure, Electronic Structure, the Density of States, Optical Properties, and Superconducting Transition Temperature of ZrBeSi Crystal under Pressure","authors":"Yu-Huan Li","doi":"10.1002/pssb.202300196","DOIUrl":"https://doi.org/10.1002/pssb.202300196","url":null,"abstract":"Through a rigorous application of first‐principles simulations, it is endeavored to provide a systematic examination of how the crystal structure, electronic structure, density of states, optical properties, and superconducting transition temperature of ZrBeSi are influenced by variations in pressure. The research has shown that pressure can alter the electronic structure and density of states, with a tendency for expansion toward higher energy regions as pressure increases. By manipulating the pressure, both the absorption coefficient and energy loss are sensitive to pressure and exhibit sharp absorption and loss peaks in the UV wavelength region. In addition to the above, the effects of electron–phonon coupling are taken into account and further investigations of the superconducting transition temperature Tc$T_{c}$ , which is found to be 0.564 K at 0 GPa, are subsequently delved into. Additionally, there exists a quadratic attenuation relationship between the temperature and pressure. Further studies reveal that the decrease of Tc$T_{text{c}}$ with increasing pressure is a result of the combined effects of the gradual increase in the phonon density of states’ frequency and the flattening of the density of states near the Fermi level. The findings of this study contribute to the understanding of the impact of pressure on the physical properties of materials.","PeriodicalId":20107,"journal":{"name":"physica status solidi (b)","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80589483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancement of Multiferroic and Optical Properties in BiFeO3 Due to Different Exchange Interactions Between Transition and Rare Earth Ions 稀土离子与跃迁离子的交换作用增强了BiFeO3的多铁性和光学性质

physica status solidi (b) Pub Date : 2023-06-27 DOI: 10.1002/pssb.202300026

S. Kumari, K. Anand, Mohd Alam, L. Ghosh, Srishti Dixit, Rahul K Singh, A. Jain, S. Yusuf, Chetna Gautam, Anup K. Ghosh, A. Mohan, S. Chatterjee

{"title":"Enhancement of Multiferroic and Optical Properties in BiFeO3 Due to Different Exchange Interactions Between Transition and Rare Earth Ions","authors":"S. Kumari, K. Anand, Mohd Alam, L. Ghosh, Srishti Dixit, Rahul K Singh, A. Jain, S. Yusuf, Chetna Gautam, Anup K. Ghosh, A. Mohan, S. Chatterjee","doi":"10.1002/pssb.202300026","DOIUrl":"https://doi.org/10.1002/pssb.202300026","url":null,"abstract":"An experimental analysis of the Bi0.90Tb0.1Fe0.90Mn0.1O3 system synthesized via the solid‐state method is presented in this report. UV–visible measurements are carried out and a smaller bandgap (i.e., semiconductor‐type behavior) is obtained. The structural phase of the present system is analyzed with X‐ray diffraction and neutron diffraction measurement. Structural‐phase analysis reveals that the system contains two nuclear phases (rhombohedral structure [R3c space group] with orthorhombic [Pn21a space group]). Moreover, also more bending in the bond angle is found, and the existence of a magnetic phase with a nuclear phase for the Bi0.90Tb0.1Fe0.90Mn0.1O3 system is also confirmed by neutron diffraction. The magnetic moment versus temperature (M–T) curve demonstrates that the system's Néel transition temperature is at 568 K. The magnetization data show enhancement in the magnetic property by displaying the weak ferromagnetic‐type behavior at room temperature in the magnetic field versus magnetic moment (M–H) curve as compared to the parent compound. From dielectric measurement, the dielectric constant increases while the loss decreases.","PeriodicalId":20107,"journal":{"name":"physica status solidi (b)","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78771302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Twin Spacing and Loading Mode on Mechanical Properties and Deformation Mechanism of NiCoAl Columnar Polycrystalline Alloy 孪晶间距和加载方式对NiCoAl柱状多晶合金力学性能及变形机理的影响

physica status solidi (b) Pub Date : 2023-06-23 DOI: 10.1002/pssb.202300166

Wei Zhang, Xuefeng Lu, Ping Yang, Xu Yang, Junqiang Ren, H. Xue, Yutian Ding, Xin Guo

{"title":"Effect of Twin Spacing and Loading Mode on Mechanical Properties and Deformation Mechanism of NiCoAl Columnar Polycrystalline Alloy","authors":"Wei Zhang, Xuefeng Lu, Ping Yang, Xu Yang, Junqiang Ren, H. Xue, Yutian Ding, Xin Guo","doi":"10.1002/pssb.202300166","DOIUrl":"https://doi.org/10.1002/pssb.202300166","url":null,"abstract":"Grain boundary engineering is an effective and feasible metal strengthening strategy to enhance the properties of nanopolycrystalline alloys by changing the number, configuration, and connectivity of different types of grain boundaries, especially for the twin boundaries. In the present contribution, the effect of twin spacing and loading mode on the deformation behavior and mechanism of NiCoAl columnar polycrystalline alloy is investigated. The results show that the nanotwins can not only increase the bearing capacity of dislocations but also emit many dislocations, resulting in the coupling effect of dislocation strengthening and twin strengthening. When the twin spacing is large, intrinsic stacking faults occur and gradually transform into deformation twins. In this stage, Shockley partial dislocation controls plastic deformation. When the twin spacing is small, the high‐density twin layers and stacking faults are more likely to interweave, showing a combination action of Shockley partial dislocation and stair‐rod dislocation. With the loading changing to Z axis, the yield strength decreases due to reduced resistance to the dislocation and a weakened number of Shockley partial dislocations of the emission, leading to less strengthening of the twins. The insights provide a solid theoretical foundation for the further application of NiCoAl in industrial production.","PeriodicalId":20107,"journal":{"name":"physica status solidi (b)","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79196754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unconventional Nonequilibrium Phase Stabilization in FeNi Alloy Examined by Positron Annihilation Spectroscopy 用正电子湮没光谱研究FeNi合金的非常规非平衡相稳定

physica status solidi (b) Pub Date : 2023-06-23 DOI: 10.1002/pssb.202300182

LeBert Sam Billgates, G. A. Jacob, S. Sellaiyan, Raphel Justin Joseyphus

引用次数: 0

Surface Structure and Temperature‐Reversible Phase Transition of Sn on W(110) Surface W(110)表面Sn的表面结构和温度可逆相变

physica status solidi (b) Pub Date : 2023-06-23 DOI: 10.1002/pssb.202300070

Dhiman Banik, T. Nakagawa

引用次数: 0

Electric Field‐Induced Phase Transition on HPX6 (X = C, Si, Ge, Sn) Monolayers HPX6 (X = C, Si, Ge, Sn)单分子膜的电场诱导相变

physica status solidi (b) Pub Date : 2023-06-23 DOI: 10.1002/pssb.202300112

Krishnanshu Basak, S. Nath, Rajkumar Mondal, D. Jana

引用次数: 0

Electronic, Magnetic, and Elastic Features of Quaternary Heusler Alloys: FeVScSb and FeVYSb 第四系Heusler合金的电子、磁性和弹性特性:FeVScSb和FeVYSb

physica status solidi (b) Pub Date : 2023-06-23 DOI: 10.1002/pssb.202300178

I. Bensehil, H. Baaziz, T. Ghellab, Z. Charifi, Ahlem Kolli, N. Guechi

{"title":"Electronic, Magnetic, and Elastic Features of Quaternary Heusler Alloys: FeVScSb and FeVYSb","authors":"I. Bensehil, H. Baaziz, T. Ghellab, Z. Charifi, Ahlem Kolli, N. Guechi","doi":"10.1002/pssb.202300178","DOIUrl":"https://doi.org/10.1002/pssb.202300178","url":null,"abstract":"This study employs density functional theory to investigate the structural, elastic, electronic, and magnetic properties of FeVScSb and FeVYSb Heusler compounds. FeVScSb exhibits ferromagnetic properties in its stable state, whereas FeVYSb displays ferrimagnetic behavior. The obtained elastic constants (Cij) indicate that FeVScSb and FeVYSb possess mechanical stability and ductility, while also displaying a significant degree of elastic anisotropy. The aggregate magnetic moment of said alloys is determined to be equivalent to 3 μB, in accordance with the Slater–Pauling principle. The investigation of the impact of uniform strain on electronic and magnetic characteristics is conducted. The findings indicate that FeVScSb and FeVYSb exhibit semiconductivity within extensive lattice parameter intervals, ranging from 5.84 to 6.60 Å for FeVScSb and from 6.11 to 6.70 Å for FeVYSb. The Heusler compounds FeVScSb and FeVYSb exhibit half‐metallic behavior within a range of lattice parameters. Specifically, FeVScSb displays this behavior when the lattice parameter varies from 6.61 to 6.72 Å, while FeVYSb exhibits half‐metallicity within the range of 6.71–6.81 Å. Under the influence of strain, the magnetic moment retains a constant value of 3 μB. Therefore, the potential for spintronics is promising.","PeriodicalId":20107,"journal":{"name":"physica status solidi (b)","volume":"141 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77238266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0