Acta Physica Polonica A最新文献_第6页

Application of Polarizing Optical Microscopy in Investigation of Crystallization Kinetics from Smectic CA* Phase 偏光显微镜在Smectic CA*相结晶动力学研究中的应用

IF 0.7 4区物理与天体物理

Acta Physica Polonica A Pub Date : 2023-08-01 DOI: 10.12693/aphyspola.144.93

A. Deptuch, A. Lelito, M. Urbańska

引用次数: 0

Optical and Electrical Characterization of 4,6-Diacetylresorcinol and 4,6-Bis(1-hydrazonoethyl)benzene-1,3-diol and Their Photo-Applications 4,6-二乙酰间苯二酚和4,6-双(1-腙乙基)苯-1,3-二醇的光学和电学表征及其光应用

4区物理与天体物理

Acta Physica Polonica A Pub Date : 2023-08-01 DOI: 10.12693/aphyspola.144.128

S.S. Shenouda, M. Shebl, H.S. Hafez, M. Saif

引用次数: 0

Peculiarities of Magnetoresistive Properties of Nanostructured (Ni80 Fe20)xAu1-x Thin Films: Concentration and Annealing Effects 纳米结构(Ni80 Fe20)xAu1-x薄膜的磁阻特性:浓度和退火效应

IF 0.7 4区物理与天体物理

Acta Physica Polonica A Pub Date : 2023-08-01 DOI: 10.12693/aphyspola.144.69

I. M. Pazukha, S. R. Dolgov-Gordiichuk, A. Lohvynov, K. Tyschenko, O. Pylypenko

{"title":"Peculiarities of Magnetoresistive Properties of Nanostructured (Ni80 Fe20)xAu1-x Thin Films: Concentration and Annealing Effects","authors":"I. M. Pazukha, S. R. Dolgov-Gordiichuk, A. Lohvynov, K. Tyschenko, O. Pylypenko","doi":"10.12693/aphyspola.144.69","DOIUrl":"https://doi.org/10.12693/aphyspola.144.69","url":null,"abstract":"In this report, peculiarities of magnetoresistive properties of nanostructured (Ni 80 Fe 20 ) x Au 1 − x thin ﬁlms containing from 10 to 60 at.% of Au were investigated. We focus on the samples with a thickness of 45 nm fabricated by the method of electron-beam co-evaporation. The inﬂuence of Au atoms concentration and the annealing process within the temperature range from 300 to 700 K on the microstructure, magnitude, and nature of magnetoresistive eﬀects has been discussed. The analysis of electronographic studies showed that both face-centered cubic Ni 3 Fe and Au phases are visible in the diﬀraction images. Upon varying thin ﬁlm compositions and annealing conditions, the phase state does not change. At the same time, magnetoresistive properties of thin ﬁlms demonstrated a strong dependence on both the concentration of sample components and annealing conditions. Samples after deposition showed typical giant magnetoresistance behavior at 20–46 at.% of Au, which is also typical for samples annealed at 400 and 500 K. The transition to the anisotropic nature of magnetoresistance occurs upon annealing at 500 K.","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":"6 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80392072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Studying the Physicochemical Properties of Water Activated by Microwave-Induced Plasma Jet for Biological and Medical Applications 微波等离子体射流活化水的物理化学性质研究及其在生物和医学上的应用

IF 0.7 4区物理与天体物理

Acta Physica Polonica A Pub Date : 2023-08-01 DOI: 10.12693/aphyspola.144.81

F.A. Naeim, H. R. Humud

{"title":"Studying the Physicochemical Properties of Water Activated by Microwave-Induced Plasma Jet for Biological and Medical Applications","authors":"F.A. Naeim, H. R. Humud","doi":"10.12693/aphyspola.144.81","DOIUrl":"https://doi.org/10.12693/aphyspola.144.81","url":null,"abstract":"This work aims to investigate the chemical and physical properties of water activated by a microwave-induced plasma jet in the system. In this work, the activation of water was studied by plasma microwave using argon gas. To study the physical and chemical properties of water, 10 cm 3 of distilled water was placed in a container made of glass in the form of a dish with a diameter of 5 cm and a depth of 1 cm. The system operates by microwave, with a sustain voltage to the magnetron of 150 V and exposure times ranging from 1 to 10 min. Underﬂows of 0.7, 1.0, 1.5, and 2.1 l/min of reactive oxygen/nitrogen species types were measured using kits purchased from an American manufacturer, Bartovation, for this purpose. The results showed the concentrations of NO 2 , NO 3 , and H 2 O 2 , increasing with time as well as with the ﬂow rate. With the exposure time, the pH decreases until it reaches 4, and the temperature increases until it reaches 37.2 ◦ C; however, the pH increases with the storage time, and the water reaches its natural state with a pH of 7 after 24 h of storage. The concentration of NO 2 and NO 3 increases slightly, and after 6 h, it begins to decrease exponentially, reaching a value close to zero after the passage of 24 h. From that, it can be concluded that the microwave-induced plasma jet system can produce reactive oxygen/nitrogen species, which can be used for biological applications.","PeriodicalId":7164,"journal":{"name":"Acta Physica Polonica A","volume":"60 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78003525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Up-Conversion Luminescence and Temperature Characteristics Study of Ho3+/Yb3+ Co-doped NaGd(MoO4)2 Phosphors Ho3+/Yb3+共掺NaGd(MoO4)2荧光粉的上转换发光和温度特性研究

IF 0.7 4区物理与天体物理

Acta Physica Polonica A Pub Date : 2023-08-01 DOI: 10.12693/aphyspola.144.87

L. Wang, S.Y. Liu, W. B. Song, Y.Y. Chang, J.X. Liu, Y. B. Wen, Q. M. Yu

引用次数: 0

Spectral Investigations of γ-Irradiated Polyethylene/CdS+ZnS Composite Films γ辐照聚乙烯/CdS+ZnS复合膜的光谱研究

IF 0.7 4区物理与天体物理

Acta Physica Polonica A Pub Date : 2023-07-01 DOI: 10.12693/aphyspola.144.35

I. Mustafayev, S. Z. Melikova, E.G. Hajiyeva, R.J. Gasimov, M. Bayramov, N. Babayeva

引用次数: 0

Investigation of the Radiation Sensitivity of the Modified SrCl2-Tl+ Crystals 改性SrCl2-Tl+晶体辐射灵敏度的研究