Journal of Superconductivity and Novel Magnetism最新文献_第2页

Exploring the Magnetic Behavior of a Magnetic High-Entropy Alloy with Dual-Phase B20 Crystal Structure 具有双相B20晶体结构的磁性高熵合金的磁性行为研究

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-08-15 DOI: 10.1007/s10948-023-06610-8

Siwei Tang, Haonan Dong, Zhe Huang, Baishan Chen, Haiguo Tang

{"title":"Exploring the Magnetic Behavior of a Magnetic High-Entropy Alloy with Dual-Phase B20 Crystal Structure","authors":"Siwei Tang, Haonan Dong, Zhe Huang, Baishan Chen, Haiguo Tang","doi":"10.1007/s10948-023-06610-8","DOIUrl":"10.1007/s10948-023-06610-8","url":null,"abstract":"<div>The rapid advancement of big data, artificial intelligence, and cloud computing technologies has led to a significant increase in demand for high-density magnetic storage. High-entropy alloys offer better control over the properties of magnetic storage materials, allowing for a wider range of magnetic configurations. In this study, a five-membered magnetic alloy was created using powder metallurgy. It was revealed that both FeCrCoSiGe and FeMnCoSiGe alloys are dual-phase high-entropy alloys consisting of B20 CoGe- and FeSi-based phases. The study also demonstrated an interesting “kink” feature observed in the temperature-dependent magnetization of FeCrMnSiGe that suggests a potential association with helimagnetism. The helimagnetism is from the intrinsic helical ferromagnetism in the CoGe matrix phase and varies with the magnetic interactions due to the doped atoms. Furthermore, the temperature-dependent magnetization showed that replacing chromium (Cr) with cobalt (Co) could potentially reduce the magnetization transition to approximately 60 K. A complete substitution of chromium with manganese (Mn) could also alter the magnetic transition behavior. FeCrMnSiGe, FeCrCoSiGe, and FeMnCoSiGe were identified as soft magnets based on their field-dependent magnetization. The magnetic properties could be adjusted by modifying the composition and lattice distortion of the alloy. This study has the potential to aid in the development of a new material system with an adjustable chiral magnetic structure for spintronic memory devices.</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 7-9","pages":"1673 - 1682"},"PeriodicalIF":1.8,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41086685","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

Simple Algorithm for Computing the Value of the Critical Temperature of Magnetic Nanoparticles with High Accuracy Using Simulation Methods 用模拟方法高精度计算磁性纳米粒子临界温度的简单算法

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-08-01 DOI: 10.1007/s10948-023-06607-3

Mehrdad Ghaemi, Somayeh Hemmati

引用次数: 0

Hysteresis and Loss Characteristics of Soft Magnetic Materials Based on Nonlinear Preisach Model 基于非线性Preisach模型的软磁材料磁滞损耗特性

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-07-31 DOI: 10.1007/s10948-023-06606-4

Hanyu Zhao, Xianlu Zhao, Shu Xu, Weihao Liu, Yujie Wu, Yutao An

{"title":"Hysteresis and Loss Characteristics of Soft Magnetic Materials Based on Nonlinear Preisach Model","authors":"Hanyu Zhao, Xianlu Zhao, Shu Xu, Weihao Liu, Yujie Wu, Yutao An","doi":"10.1007/s10948-023-06606-4","DOIUrl":"10.1007/s10948-023-06606-4","url":null,"abstract":"<div>In order to accurately describe the hysteresis and loss characteristics of soft magnetic materials, a nonlinear Preisach model is introduced to simulate the hysteresis characteristics of three soft magnetic materials, and the dynamic distribution parameters of the nonlinear model are determined by experimentally measuring the data of the first-order reversal curves and second-order reversal curves of three soft magnetic materials under DC static magnetic fields. Comparing the static limit hysteresis lines of soft magnetic materials, it is proved that the model can describe the hysteresis characteristics of soft magnetic materials more accurately. Combined with the loss separation principle, a more accurate loss prediction method for soft magnetic materials is proposed. By comparing the experimental results of loss separation of different soft magnetic materials under different working conditions with the calculated results, it is found that they are in good agreement, which shows that the dynamic loss model can better describe the magnetic loss of soft magnetic materials and each component and verify the correctness and generality of the model.</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 7-9","pages":"1655 - 1664"},"PeriodicalIF":1.8,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41086683","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

Tributes to the Memory of Professor Vladimir Z. Kresin 纪念Vladimir Z. Kresin教授

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-07-29 DOI: 10.1007/s10948-023-06600-w

V. P. S. Awana, Israel Felner, Sergei Ovchinnikov

引用次数: 0

Structural and Magnetic Characteristics of Rapid Solidified Co78Zr17B2Si1M2 (M = W, Cr, Mo) alloys 快速凝固Co78Zr17B2Si1M2 (M = W, Cr, Mo)合金的组织和磁性

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-07-26 DOI: 10.1007/s10948-023-06604-6

M. Molaahmadi, M. Tavoosi, A. Ghasemi, Gh. R. Gordani

{"title":"Structural and Magnetic Characteristics of Rapid Solidified Co78Zr17B2Si1M2 (M = W, Cr, Mo) alloys","authors":"M. Molaahmadi, M. Tavoosi, A. Ghasemi, Gh. R. Gordani","doi":"10.1007/s10948-023-06604-6","DOIUrl":"10.1007/s10948-023-06604-6","url":null,"abstract":"<div>This research explored the effects of W, Mo, and Cr elements on the structural and magnetic characteristics of Co78Zr17B2Si1M2 (M?=?W, Cr, Mo) alloys. Toward this goal, vacuum arc melting technique was used to prepare the initial ingots, and rapid solidification process was followed by the melt-spinning technique. The samples were evaluated using X-ray diffractometer (XRD), field emission scanning electron microscopy (FESEM), differential scanning calorimetry (DSC), and vibrating sample magnetometer (VSM). Based on the results, the Co5Zr magnetic phase with coercivity (Hc) and saturation magnetization (Ms) within 2.7–3?Oe and 30–42?emu/g was successfully formed in Co78Zr17B2Si1M2 (M?=?W, Cr, Mo) systems during the melt-spinning process. Performing the annealing process at a temperature lower than 400?°C led to an increase in the percentage of the Co5Zr magnetic phase as well as Hc (to about 4.6?kOe in the Co78Zr17B2Si1Cr2 sample). In contrast, the precipitation of Co11Zr2 and Co23Zr6 compounds during the annealing process over 500?°C had destructive effects on the hard magnetic properties of the studied samples.</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 6","pages":"1601 - 1609"},"PeriodicalIF":1.8,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10948-023-06604-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5011662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of Magnetic and Transport Properties of Co2FeSi Spin Glass Heusler Alloy Under Extreme Conditions Co2FeSi自旋玻璃Heusler合金在极端条件下的磁性和输运特性研究

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-07-19 DOI: 10.1007/s10948-023-06601-9

U. Devarajan, P. Sivaprakash, Alga B. Garg, Ikhyun Kim, S. Arumugam

{"title":"Investigation of Magnetic and Transport Properties of Co2FeSi Spin Glass Heusler Alloy Under Extreme Conditions","authors":"U. Devarajan, P. Sivaprakash, Alga B. Garg, Ikhyun Kim, S. Arumugam","doi":"10.1007/s10948-023-06601-9","DOIUrl":"10.1007/s10948-023-06601-9","url":null,"abstract":"<div>Here, we report the experimental investigations on magnetic (spin polarization and exchange bias) and transport (spin-flip and spin-flop) properties of Co2FeSi Heusler compound at cryo temperature and high magnetic field. The spin cluster characteristic of the material is revealed by the M[T] curve of the ZFC, FC, and FW cycles. This can exhibit spin polarization behavior of anti-ferromagnetism (AFM) at 30–70?K. Furthermore, at a critical field of 0.2?T, AFM transforms into ferromagnetic (FM) and on further increasing the magnetic field, the spin polarization region becomes linear due to perseverance of FM behavior. The isothermal magnetization [M(H)] are also evaluated at different temperatures and AFM to FM transition has been observed at various applied magnetic fields. These magnetic measurements are used to determine exchange bias [EB] parameters such as HE, HC, and Mr both at low and room temperature. The resistivity [ρ(T)] has been measured at 0 and 5?T field, which explain the increasing trend of metallic nature at cooling cycle and also provides a clear evidence of magnonic, phononic resistivity and spin-flip scattering.\u0000</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 6","pages":"1611 - 1618"},"PeriodicalIF":1.8,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4756447","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

Electronic, Magnetic, and Structural Properties of the 3d Transition Metal-Doped Single-Walled Indium Phosphide Nanotube 三维过渡金属掺杂单壁磷化铟纳米管的电子、磁性和结构特性

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-07-14 DOI: 10.1007/s10948-023-06605-5

Khodarahm Ghandi, Seyyed Mahdy Baizaee, Peiman Amiri

{"title":"Electronic, Magnetic, and Structural Properties of the 3d Transition Metal-Doped Single-Walled Indium Phosphide Nanotube","authors":"Khodarahm Ghandi, Seyyed Mahdy Baizaee, Peiman Amiri","doi":"10.1007/s10948-023-06605-5","DOIUrl":"10.1007/s10948-023-06605-5","url":null,"abstract":"<div>In this research, ab initio investigation on the electronic, magnetic, and structural properties of 3d transition-metal (TM) impurities (Cu, Ni, Co, Fe, Mn, Cr, and V) doped armchair (5, 5) indium phosphide nanotubes (InPNT) was performed by using a density functional theory. The observations illustrate that there exists a structural distortion around 3d TM impurities with regard to the pure InPNT. Furthermore, the observations revealed that the total magnetic moment changes are in good agreement with Hund’s rule. In addition, the Mn-doped InPNT has a maximum magnetic moment. The calculations exhibited that the InP nanotube is semiconductor in nature with a direct band gap of 1.46?eV. Also, the simulation results illustrated that when 3d TM impurities, except Cu, are replaced with In atom in InPNT, impurity doping leads to the magnetic form of the nanotube. Cu-doped InPNT is a non-magnetic metal whereas, Ni and Fe-doped InPNTs are ferromagnetic metals. The V-doped InPNT is also a magnetic semiconductor according to simulation data. Furthermore, we found that the Cr, Co, and Mn-doped InPNT are half-metals with 100% spin-polarization characters. This fact makes the InPNT used for Nano magnet and spintronic applications. In the end, our results show that the InP nanotube doped with iron is more stable than others.</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 6","pages":"1619 - 1629"},"PeriodicalIF":1.8,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4576063","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

Effect of Magnesium Ion Substitution on Physical Properties and Magnetic Induction Heating of Maghemite (γ-Fe2O3) Nanoparticles 镁离子取代对磁赤铁矿(γ-Fe2O3)纳米颗粒物理性质及磁感应加热的影响

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-07-12 DOI: 10.1007/s10948-023-06592-7

O. M. Lemine, Abdulrahman Faqih, Saja Algessair, N. Madkhali, M. Hjiri, Sharif Abu Alrub, Ali Z. Alanazi, Abdulaziz Alromaeh, L. E. L. Mir

{"title":"Effect of Magnesium Ion Substitution on Physical Properties and Magnetic Induction Heating of Maghemite (γ-Fe2O3) Nanoparticles","authors":"O. M. Lemine, Abdulrahman Faqih, Saja Algessair, N. Madkhali, M. Hjiri, Sharif Abu Alrub, Ali Z. Alanazi, Abdulaziz Alromaeh, L. E. L. Mir","doi":"10.1007/s10948-023-06592-7","DOIUrl":"10.1007/s10948-023-06592-7","url":null,"abstract":"<div>We report the preparation, characterization, and magnetic hyperthermia of magnesium-doped maghemite (γ-Fe2O3) nanoparticles (NPs). XRD and Rietveld refinement reveal the formation of a single cubic phase of γ-Fe2O3, where the substitution of Fe+3 located in the tetrahedral site by Mg+2 did not alter the crystal structure. Magnetic measurements showed an increase of saturation for low concentration of magnesium (1% and 3%) and a decrease for 5% of magnesium. The superparamagnetism behavior and the effective anisotropy constant (({K_{eff}})) were confirmed and determined by the Langevin model and the law of approach to saturation (LAS), respectively. Hyperthermia under an alternating magnetic field (AMF) was conducted, indicating that all the NPs reach hyperthermia temperatures (42?°C) in relatively short times (3–5?min.). It was found that all the Mg-doped γ-Fe2O3 NPs present relatively good heating efficiencies, with SAR values in the range of 35–114W/g and ILP values (0.58–1.67 nHm2/kg). Furthermore, the linear response theory (LRT) model was studied to further assess heating mechanisms and to determine the Néel relaxation time (({tau }_{R})). Our finding strongly suggests that the as-prepared Mgx-doped γ-Fe2O3 MNPs are promising for hyperthermia application.\u0000</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 6","pages":"1583 - 1593"},"PeriodicalIF":1.8,"publicationDate":"2023-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4496218","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

Interaction of a Magnetic Skyrmionium With an Engineered Defect 磁性锶与工程缺陷的相互作用

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-07-05 DOI: 10.1007/s10948-023-06603-7

Aykut Can Önel, Mahmut Çimen, A. Emre Yarimbiyik, Mustafa Arikan, Bulat Rameev

{"title":"Interaction of a Magnetic Skyrmionium With an Engineered Defect","authors":"Aykut Can Önel, Mahmut Çimen, A. Emre Yarimbiyik, Mustafa Arikan, Bulat Rameev","doi":"10.1007/s10948-023-06603-7","DOIUrl":"10.1007/s10948-023-06603-7","url":null,"abstract":"<div>High mobility and the absence of the skyrmion Hall effect are demonstrated in a magnetic skyrmionium, which consists of two skyrmions with opposite topological charges. Despite these advantages, material defects have the potential to alter the skyrmionium’s dynamics. In this report, we investigate the motion of a skyrmionium driven by a current on a racetrack containing an engineered cylindrical defect. Our model demonstrates three possible outcomes of the interaction between the skyrmionium and the defect, depending on the applied current density: pinning, transformation, and transmission. Pinning takes place when the driving force generated by the current is inadequate to counteract the repulsive force at the defect boundary, causing the skyrmionium to become entrapped. Transformation happens inside the defect, where the skyrmionium might convert into a skyrmion due to the higher effective field resulting from the change in film thickness. Transmission takes place when the force exerted by the applied current significantly exceeds the repulsive force at the defect boundary, leading to minimal impact on the skyrmionium motion. These results offer significant understanding of skyrmionium behavior when interacting with engineered defects and present potential implications for the development of novel skyrmionic devices.</div>","PeriodicalId":669,"journal":{"name":"Journal of Superconductivity and Novel Magnetism","volume":"36 6","pages":"1533 - 1539"},"PeriodicalIF":1.8,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4548462","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

Synthesis and Study of Reactive Mesogen in a Spin Valve Structure 自旋阀结构反应介介剂的合成与研究

IF 1.8 4区物理与天体物理

Journal of Superconductivity and Novel Magnetism Pub Date : 2023-07-01 DOI: 10.1007/s10948-023-06602-8

G. Manikandan, D. Dhanalakshmi, R. Devi, Ilari Angervo

引用次数: 1