physica status solidi (b)最新文献_第6页

Enhancement Design and Quasi‐Static Crushing Response of Novel Star‐Rhombus Honeycombs 新型星形蜂窝的增强设计及准静态破碎响应

physica status solidi (b) Pub Date : 2023-07-21 DOI: 10.1002/pssb.202300231

Shun Wang, Hai Liu

{"title":"Enhancement Design and Quasi‐Static Crushing Response of Novel Star‐Rhombus Honeycombs","authors":"Shun Wang, Hai Liu","doi":"10.1002/pssb.202300231","DOIUrl":"https://doi.org/10.1002/pssb.202300231","url":null,"abstract":"To enhance the load‐bearing capacity and energy absorption capacity of the honeycomb, three kinds of star‐rhombus honeycombs (SRHs) are proposed by adding rhombic parts to the traditional star‐shaped honeycomb (TSH). The quasi‐static crushing responses of SRHs, including deformation mechanism, crushing stress, specific energy absorption (SEA), and Poisson's ratio, are studied based on the finite‐element (FE) method. The introduction of rhombic parts increases the number of plastic hinges, resulting in significantly higher crushing stress and SEA of the SRHs than that of the TSH. Among the SRHs, SRH‐A has the largest energy absorption, and the SEA value of SRH‐A is 98.2% higher than TSH. Then, parametric studies including wall thickness, cell wall angle, and spacing length between the vertices of the star‐shaped part and the rhombic part are carried out. The wall thickness and cell wall angle have the greatest influence on the crushing response of SRHs. Crushing stress and Poisson's ratio of SRHs can be adjusted by changing the wall thickness of the rhombic part. The configurations and geometric parameters of the rhombic part determine the Poisson's ratio of SRHs. This study provides effective guidance for designing star‐shaped honeycombs with enhanced load‐bearing capacity and energy absorption capacity.","PeriodicalId":20107,"journal":{"name":"physica status solidi (b)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87808991","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

Tuning of Electronic and Optical Properties of PtS2 Monolayer Using Stacking Engineering 利用堆叠技术调谐PtS2单层材料的电子学和光学性质

physica status solidi (b) Pub Date : 2023-07-20 DOI: 10.1002/pssb.202300132

Priyanka Priyanka, Ramesh Kumar, F. Chand

引用次数: 0

The Role of Concentration, Site, and O Vacancy on Magnetic and Optical Properties of Cu‐Doped Anatase TiO2 浓度、位置和O空位对Cu掺杂锐钛矿TiO2磁性和光学性能的影响

physica status solidi (b) Pub Date : 2023-07-19 DOI: 10.1002/pssb.202300157

Yao Yang, Yibin Hu, Yan Huang, Xiaofang Wang, Xiaoshuang Chen

{"title":"The Role of Concentration, Site, and O Vacancy on Magnetic and Optical Properties of Cu‐Doped Anatase TiO2","authors":"Yao Yang, Yibin Hu, Yan Huang, Xiaofang Wang, Xiaoshuang Chen","doi":"10.1002/pssb.202300157","DOIUrl":"https://doi.org/10.1002/pssb.202300157","url":null,"abstract":"Cu‐doped TiO2$left(text{TiO}right)_{2}$ is a dilute magnetic semiconductor with excellent electrical, magnetic, and optical properties. Herein, first‐principles methods are employed to investigate its electronic structure, magnetic properties, and optical behavior. The results demonstrate that Cu‐doped TiO2$left(text{TiO}right)_{2}$ exhibits intrinsic ferromagnetism. The presence of O vacancies facilitates the ferromagnetic exchange between Cu ions by forming bound magnetic polarons (BMPs). This finding validates the BMPs model and explains for the decrease in magnetic properties during annealing under O2 conditions. As the concentration of Cu increases, the system undergoes a transition from a semiconductor to a metal. Cu ions exhibit a preference for a compact configuration and display either paramagnetism or antiferromagnetism. The spin polarization can be effectively controlled from 0% to 100% by adjusting the concentration and site of Cu. Additionally, Cu doping leads to a reduction in the bandgap and an extension of the absorption range into the infrared region. The absorption intensity is positively correlated with the concentration. The presence of a spin‐polarized intermediate band indicates a correlation between the spin of the excited electron and the energy of the absorbed photon. Overall, Cu‐doped TiO2$left(text{TiO}right)_{2}$ shows significant potential for applications in spintronics and spin‐related optics, including photospintronics and spin photocatalysis.","PeriodicalId":20107,"journal":{"name":"physica status solidi (b)","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90569265","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

A Novel Single‐Phase White Phosphor Gd7O6(BO3)(PO4)2:Dy3+ 新型单相白色荧光粉Gd7O6(BO3)(PO4)2:Dy3+

physica status solidi (b) Pub Date : 2023-07-18 DOI: 10.1002/pssb.202300193

Rongli Zhao, Xiang Guo, Yi Ling, Ruirui Cui

引用次数: 0

Superconducting Complementary Metamaterial‐Based Switchable Device for Terahertz Wave Manipulation 基于超导互补超材料的太赫兹波操纵开关器件

physica status solidi (b) Pub Date : 2023-07-18 DOI: 10.1002/pssb.202300203

Chun Li, Yan Teng, Hao-Chung Chen, R. Su, Hancong Sun, Ling Jiang

{"title":"Superconducting Complementary Metamaterial‐Based Switchable Device for Terahertz Wave Manipulation","authors":"Chun Li, Yan Teng, Hao-Chung Chen, R. Su, Hancong Sun, Ling Jiang","doi":"10.1002/pssb.202300203","DOIUrl":"https://doi.org/10.1002/pssb.202300203","url":null,"abstract":"Herein, a tunable superconducting switch that can modulate terahertz waves is designed and experimentally demonstrated. The switchable device consists of two symmetrical split ring resonator antistructures made from niobium nitride film in one unit cell. The relatively high modulation depths of 88.5% can be obtained at resonance peaks of 0.328 THz by applying a very low bias voltage of 0.8 V. Due to the presence of higher‐order resonance modes, the superconducting device also demonstrates a multiband tuning ability at 1.03 and 1.16 THz. To further analyze the modulation mechanism of the superconducting device, the temperature dependence of the switchable device is also measured. The trends of conductivity change are calculated based on the Bardeen–Cooper–Schrieffer theory and the simulations agree well with the experimental results. During the experiment, this device not only owns a good switching capability but also shows significant frequency selective bandpass characteristics. This study delivers a promising approach for designing active and miniaturized devices, especially for applications in THz cryogenic systems.","PeriodicalId":20107,"journal":{"name":"physica status solidi (b)","volume":"71 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88976319","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

In‐Plane Crushing Behaviors of Hexagonal Honeycombs with Hollow‐Circle Joint under Different Compressive Velocities 不同压缩速度下空心圆接头六角形蜂窝的平面内破碎行为

physica status solidi (b) Pub Date : 2023-07-13 DOI: 10.1002/pssb.202300127

Y. Chen, Wenjun Zhao, Peijun Gao

引用次数: 0

Electronic structure and optical spectra of halide perovskites A2BCl6 (A= Cs; B= Se, Sn, Te, Ti, Zr) and (A=K; B= Pd, Pt, Sn) for photovoltaic and optoelectronic applications 卤化物钙钛矿A2BCl6 (A= Cs)的电子结构和光谱B= Se, Sn, Te, Ti, Zr)和(A=K;B= Pd, Pt, Sn)用于光伏和光电子应用

physica status solidi (b) Pub Date : 2023-07-13 DOI: 10.1002/pssb.202300280

Saadi Berri, N. Bouarissa

引用次数: 0

Temperature‐Adaptive Modulation of Transverse Magnetic Intrinsic Graphene Plasmons 横向磁性本征石墨烯等离子体的温度自适应调制

physica status solidi (b) Pub Date : 2023-07-12 DOI: 10.1002/pssb.202300256

Dong Sun, X. Hua, Lijun Wang, Daqing Liu, N. Ma

引用次数: 0

Calibration of Low‐Temperature Photoluminescence of Boron‐Doped Silicon with Increased Temperature Precision 提高温度精度的硼掺杂硅低温光致发光校准

physica status solidi (b) Pub Date : 2023-07-11 DOI: 10.1002/pssb.202300300

Katharina Peh, Aaron Flötotto, K. Lauer, D. Schulze, Dominik Bratek, S. Krischok

{"title":"Calibration of Low‐Temperature Photoluminescence of Boron‐Doped Silicon with Increased Temperature Precision","authors":"Katharina Peh, Aaron Flötotto, K. Lauer, D. Schulze, Dominik Bratek, S. Krischok","doi":"10.1002/pssb.202300300","DOIUrl":"https://doi.org/10.1002/pssb.202300300","url":null,"abstract":"Low‐temperature photoluminescence spectroscopy enables the determination of the dopant concentration of shallow impurities in silicon. This measurement method is therefore well suited for identifying and analyzing dopants (intentional impurities in silicon). A method is presented which allows the determination of the boron concentration in silicon in a range from 2.2⋅1012$2.2 cdot left(10right)^{12}$ to 2.2⋅1016 cm−3$2.2 cdot left(10right)^{16} left(text{cm}right)^{- 3}$ at temperatures from 4.2 to 20 K with increased temperature accuracy. This method requires only one calibration function for the photoluminescence intensity ratio of the boron‐bound exciton IBTO(BE)$I_{left(text{B}right)_{text{TO}} left(right. text{BE} left.right)}$ and the free exciton IITO(FE)$I_{I_{text{TO}} left(right. text{FE} left.right)}$ . The measurement temperature is obtained from the intrinsic silicon photoluminescence line of free excitons ( ITO(FE)$I_{text{TO}} left(right. text{FE} left.right) left.right)$ ) using a fitting method, which distinguishes the TO $text{TO }$ and LO$text{LO}$ components of the free exciton peak. The determined calibration function is IBTO(BE)/IITO(FE)=(5.8±0.1)⋅10−18 cm3⋅cboron⋅e(56.7±0.7)KT$left(I_{B_{text{TO}} left(right. text{BE} left.right)}right)/left(I_{I_{text{TO}} left(right. text{FE} left.right)}right) = left(right. 5.8 pm 0.1 left.right) cdot left(10right)^{- 18} left(text{cm}right)^{3} cdot c_{text{boron}} cdot left(text{e}right)^{frac{left(right. 56.7 pm 0.7 left.right) text{K}}{T}}$ . The obtained exciton binding energy to boron, Eb=4.9±0.1 meV$E_{text{b}} = 4.9 pm 0.1 text{meV}$ , agrees well with literature data.","PeriodicalId":20107,"journal":{"name":"physica status solidi (b)","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77479139","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

Single‐Ion Anisotropy Effect on the Critical and Hysteresis Behaviors of a Mixed‐Spin (1, 3/2) Square Ising Nanowire 单离子各向异性对混合自旋(1,3 /2)方形Ising纳米线临界和迟滞行为的影响

physica status solidi (b) Pub Date : 2023-07-09 DOI: 10.1002/pssb.202300180

E. M. Jalal, H. Saadi, A. Hasnaoui, Ouafa Hachem, A. Lafhal, M. Madani, M. El Bouziani

引用次数: 0