Journal of Magnetism and Magnetic Materials最新文献

{"title":"Sintering Mediated microstructure engineering of magnetic CoFe2O4 to analyze experimental and theoretical aspects","authors":"Probal Roy , Sumi Akter , Hossain Hridoy , S.I. Liba , Armin Anwar","doi":"10.1016/j.jmmm.2025.173211","DOIUrl":"10.1016/j.jmmm.2025.173211","url":null,"abstract":"<div><div>The integration of theoretical and experimental approaches on ferrites enables a highly accurate investigation of the dimensional, structural, and magnetic characteristics of ferrites. In this study, CoFe<sub>2</sub>O<sub>4</sub> (CFO) was synthesized using the solid-state method, and its structural, morphological, elastic, and magnetic properties were examined at sintering temperatures of 1000 °C, 1100 °C, and 1200 °C. XRD analysis confirmed that the synthesized ferrite crystallized in a single-phase cubic spinel structure with an Fd-3 m space group. Rietveld analysis was utilized to extract information on the lattice constant, internal strain, and cation distances. Scanning electron microscopy (SEM) revealed the morphology of the samples, with grain sizes measured using ImageJ software showing a temperature-dependent increase from 0.5 to 2.98 μ m. The FTIR spectra of the CFO revealed characteristic vibrational bands associated with spinel ferrite functional groups, with distinct bands observed at approximately 475 cm<sup>−1</sup> and 590 cm<sup>−1</sup>, confirming the formation of the spinel ferrite structure. Vibrational bands corresponding to tetrahedral and octahedral positions in the FTIR spectra were used for calculating the elastic constants and Debye temperature. Magnetic measurements on CFO revealed that the saturation magnetization increases from 79 emu/g to 106 emu/g upon sintering. This increase is attributed to the enhancement of bond angles θ<sub>1</sub> and θ<sub>2</sub>, which strengthens the super-exchange interactions between the A and B sites. The real part of magnetic permeability (μ’) of CFO remains stable up to 100 MHz, marking its utility zone, and then gradually decreases at higher frequencies due to relaxation and resonance effects, indicating strong magnetic performance. DFT calculations using CASTEP revealed that the distribution of magnetic cations between tetrahedral and octahedral sites plays a critical role in determining the electronic structure, bandgap energy, and magnetic moment of the CFO. The electronic band structure, TDOS, and PDOS reveals that CoFe<sub>2</sub>O<sub>4</sub> bulk material possesses a direct band gap of 0.63 eV in the spin-down channel and an indirect band gap of 1.08 eV in the spin-up channel. The semiconducting nature of cobalt ferrite is confirmed by the zero value of TDOS at the Fermi level for both spin-up and spin-down states. The pronounced hybridization of Fe-3d orbitals in the spin-down conduction band indicates a higher density of localized states, promoting electron hopping and aiding polarization relaxation. Additionally, the coexistence of covalent and ionic bonds in Fe-O and Co-O enhances dipole polarization, playing a key role in the dielectric loss mechanism essential for effective microwave absorption. Theoretical and experimental magnetic properties show excellent agreement, making these materials ideal for electromagnetic shielding, switching mechanisms, and micr","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"628 ","pages":"Article 173211"},"PeriodicalIF":2.5,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnetic properties and critical behaviors in medium-entropy FeCoNiCrx alloys: Exploring the relationship between configurational entropy and critical exponents","authors":"Yihan Wang ,&nbsp;Ziqian Lu ,&nbsp;Yuanyuan Gong ,&nbsp;He Wang ,&nbsp;Fenghua Chen","doi":"10.1016/j.jmmm.2025.173155","DOIUrl":"10.1016/j.jmmm.2025.173155","url":null,"abstract":"<div><div>Accompanied by the discovery of multi-component alloys, investigations on their magnetic properties have been gradually emerging in recent decades. In the research field of these alloys, a key scientific question remains unanswered: what is the relationship between high configurational entropy and intrinsic magnetic interaction? To shed light on this question, we conducted an analysis of critical exponents near the transition from ferromagnetic to paramagnetic states in medium-entropy FeCoNiCr<em>_x</em> system. Our findings confirmed that the exponent <em>γ</em> of FeCoNiCr<em>_x</em> system is similar to that of the 3D Heisenberg model, while <em>β</em> is significantly higher than classical models. With the increase of <em>x</em> ,<em>β</em> gradually increases from 0.699 ± 0.022 for <em>x</em>  = 0.4 to 0.868 ± 0.023 (0.832 ± 0.033) for <em>x</em>  = 0.8 (<em>x</em> = 1). It indicates that the elevated <em>β</em> value in FeCoNiCr<em>_x</em> solid solution should be attributed to atomic disorder, which is mathematically reflected by configurational entropy. Our results suggest that high <em>β</em> may be a common feature of high-entropy solid solutions with random atomic occupation.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"628 ","pages":"Article 173155"},"PeriodicalIF":2.5,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study of magnetic and magnetocaloric properties of polycrystalline Pr0.6Ca0.4MnO3 compound","authors":"Kalipada Das ,&nbsp;Amanulla Karikar ,&nbsp;Dipak Mazumdar ,&nbsp;I. Das","doi":"10.1016/j.jmmm.2025.173163","DOIUrl":"10.1016/j.jmmm.2025.173163","url":null,"abstract":"<div><div>The magnetic and magnetocaloric properties of chemically single-phase polycrystalline Pr_0.6Ca_0.4MnO<span><math><msub><mrow></mrow><mrow><mn>3</mn></mrow></msub></math></span> compound have been systematically investigated. The compound exhibits a sequence of complex magnetic transitions with decreasing temperature, including charge ordering phenomenon around <span><math><mrow><msub><mrow><mi>T</mi></mrow><mrow><mi>C</mi><mi>O</mi></mrow></msub><mo>∼</mo><mn>240</mn></mrow></math></span> K and antiferromagnetic ordering at <span><math><mrow><mi>T</mi><mo>∼</mo><mn>170</mn></mrow></math></span> K. At lower temperatures, a canted antiferromagnetic state emerges (<span><math><mrow><mi>T</mi><mo>&lt;</mo><mn>50</mn></mrow></math></span> K), significantly influencing the magnetocaloric response. The instability of the antiferromagnetic phase and the nucleation of ferromagnetic regions make the magnetic state highly sensitive to external perturbations, particularly in the low-temperature regime. Furthermore, an anomalous behavior in the metamagnetic transition field has been observed at low temperatures, highlighting the intricate nature of the magnetic interactions in this system.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"628 ","pages":"Article 173163"},"PeriodicalIF":2.5,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical properties analysis of magnetorheological fluids considering the stability of microstructure under squeezing shear action","authors":"Song Chen,&nbsp;Jirui Zhou,&nbsp;Li Zhang","doi":"10.1016/j.jmmm.2025.173213","DOIUrl":"10.1016/j.jmmm.2025.173213","url":null,"abstract":"<div><div>Currently, squeezing strengthening is an effective approach to address the issue of inadequate transmission torque in magnetorheological transmission systems. However, during the squeezing process, the chain formation process of the magnetic particles inside magnetorheological fluids is very complex, and the mechanism by which the increase in shear yield stress occurs remains unclear. Therefore, it is very necessary to study the microstructure and macroscopic mechanical properties of the magnetorheological fluid under the combined effects of squeezing and shear. Firstly, the energy at the break position of the magnetorheological fluid’s magnetic particle chain under the action of shear is analyzed, and a simulation model of the magnetic particle chain is established to analyze the magnetic induction intensity of the magnetic particle chain and the force between magnetic particles. Subsequently, the influence of the magnetic wall effect on the magnetic particle chain under squeezing is examined, and the dynamic equation governing the behavior of magnetic particles in the presence of the magnetic wall effect is derived. Building on the preceding analysis, models for the microstructure and macroscopic mechanical properties of magnetorheological fluid under the combined effects of squeezing and shear are developed. The resulting shear yield stress is then compared with experimental results to validate the established model. The shear yield stress model under squeezing is compared with the conventional squeezing strengthening model, and the impact of the volume fraction of magnetorheological fluid on the macroscopic mechanical properties is analyzed. The results show that the shear yield stress model presented in this paper can accurately determine the position of the magnetic particle chain fracture and effectively reflect the microstructural stability of the magnetic particle chain in the presence of the magnetic wall effect. Compared to the traditional model, it aligns more closely with the experimental results. The shear yield stress of the model established in this paper is 108.8 kPa at a volume fraction of 20 %. When the volume fraction is increased to 35 %, the shear yield stress rises to 129.8 kPa, representing an increase of 19.3 %. The shear yield stress of the traditional squeezing model is 106.7 kPa at a volume fraction of 20 %. Upon increasing the volume fraction to 35 %, the shear yield stress rises to 119.9 kPa, reflecting an increase of 12.4 %. As the volume fraction of magnetic particles increases, the growth rate of shear yield stress in the model presented in this paper surpasses that of the traditional squeezing model. Furthermore, the increasing trend of shear yield stress in this model more accurately reflects actual conditions.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"628 ","pages":"Article 173213"},"PeriodicalIF":2.5,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-frequency characterization of magnetic permeability using extended single-turn inductor and microstrip methods","authors":"Saulius Rudys ,&nbsp;Christine Vollinger ,&nbsp;Liudas Tumonis ,&nbsp;Juras Banys ,&nbsp;Vidmantas Kalendra","doi":"10.1016/j.jmmm.2025.173214","DOIUrl":"10.1016/j.jmmm.2025.173214","url":null,"abstract":"<div><div>The presence of anisotropy in the properties of materials presents challenges for their characterization. This is particularly relevant for magnetic materials, which are often sensitive to external fields. As such, the characterization of magnetic materials is a complex task. In this study, we propose extending the frequency range of the classic single-turn inductor method for disc-shaped samples with holes into the GHz range, utilizing numerical methods provided by Ansoft HFSS software. The measurement of the components of the magnetic permeability tensor depends on the direction of the applied magnetic field. To change the magnetic field direction, we developed a microstrip measurement setup for the same disc-shaped sample. Due to the complexity of the underlying mathematical model, we employed numerical methods to calculate the magnetic permeability.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"628 ","pages":"Article 173214"},"PeriodicalIF":2.5,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and physico-chemical characterization of AISI 304 stainless steel film deposited by DC magnetron sputtering","authors":"Samuel Tomko ,&nbsp;Jiří Pechoušek ,&nbsp;Jiří Tuček ,&nbsp;Ernő Kuzmann ,&nbsp;Vítězslav Heger ,&nbsp;Stanislaw M. Dubiel ,&nbsp;Libor Machala","doi":"10.1016/j.jmmm.2025.173210","DOIUrl":"10.1016/j.jmmm.2025.173210","url":null,"abstract":"<div><div>The present study reports on the preparation and physico-chemical investigation of a 2 µm thick film produced from AISI 304 stainless steel by DC magnetron sputtering. A phase transformation from the conventionally non-magnetic Face-Centered Cubic (FCC) phase of austenite (γ-Fe) nature to a predominantly Body-Centered Cubic (BCC) ferromagnetic single phase (α-Fe) during the deposition is observed upon the deposition process. The deposited films are characterized by various experimental techniques including Scanning Electron Microscopy (SEM) with Energy-Dispersive X-ray spectroscopy (EDX), X-Ray powder Diffraction (XRD), Grazing-Incidence X-Ray powder Diffraction (GIXRD), and Mössbauer Spectroscopy (MS) in both transmission and back-scattered geometry. For interpretation of the Mössbauer spectra of the film, a physico-chemical model based on distinct micromagnetic environments evolved due to alloying elements is suggested. The results, presented within this study, may stimulate further and detailed research in identifying the causes for the phase transition from both theoretical and experimental perspectives and understanding the underlying mechanisms.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"628 ","pages":"Article 173210"},"PeriodicalIF":2.5,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of Sr and O vacancies in Gd-doped SrTiO3: Insight from first-principles calculations","authors":"Syed Zain Mehmood ,&nbsp;Gul Rahman ,&nbsp;M.S. Al-Buriahi ,&nbsp;Nissren Tamam ,&nbsp;Imed Boukhris","doi":"10.1016/j.jmmm.2025.173109","DOIUrl":"10.1016/j.jmmm.2025.173109","url":null,"abstract":"<div><div>Using first-principles calculations based on density functional theory, the effects of Gd doping, Sr, and O vacancies on the electronic structure of SrTiO₃ (STO) are investigated. Pristine STO is found to be a typical semiconductor. Formation energy calculations show that STO prefers the O-rich environment for Gd doping at Sr site. Furthermore, Gd-doped STO has about 6 <span><math><msub><mrow><mi>μ</mi></mrow><mrow><mi>B</mi></mrow></msub></math></span> magnetic moment, which is mainly contributed by the <em>f</em> orbitals of Gd. Sr vacancy is more stable than the oxygen vacancy in STO under O-rich condition. Both vacancies also generate spin-polarized states in STO and the electronic band gap of STO is reduced. The interaction of Gd with Sr and O vacancies is also investigated and it is revealed that Sr vacancy stabilizes the Gd-doped STO at the cost of reduction in the magnetic moment of Gd-doped STO. Both Sr and O vacancies in Gd-doped STO behave as scavengers to partially quench the magnetic moment.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"628 ","pages":"Article 173109"},"PeriodicalIF":2.5,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The periodic magnetic field irregularity characteristics of the Nd-Fe-B permanent magnet guideway and its effect on the high temperature superconducting maglev systems","authors":"Wuyang Lei ,&nbsp;Yicheng Feng ,&nbsp;Can Peng ,&nbsp;Zigang Deng ,&nbsp;Weihua Zhang","doi":"10.1016/j.jmmm.2025.173209","DOIUrl":"10.1016/j.jmmm.2025.173209","url":null,"abstract":"<div><div>As an essential part of a high-temperature superconducting (HTS) magnetic levitation system, the magnetic field irregularity impacts the safe and stable operation of the vehicle. To analyze this irregularity, a three-dimensional magnetic field scanning device has been developed. The findings indicate that the magnetic field irregularity is periodic, arising from the chamfering of magnets and bolts during the assembly process. A mathematical representation of this periodic magnetic field irregularity distribution has been established. The maximum magnetic flux densities measured are 56 mT in the vertical direction and 38 mT in the lateral direction, both at a height of 5 mm above the PMG. Moreover, a method for simulating permanent magnet guideway irregularity is proposed based on the derived expression. The effects of periodic magnetic field irregularity on the electromagnetic force and thermal analysis of the HTS maglev system have been calculated, revealing minimal levitating force fluctuations and negligible temperature rise under these conditions at high speeds. This study provides a robust mathematical and measurement methodology for assessing periodic magnetic field irregularity in HTS maglev systems.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"628 ","pages":"Article 173209"},"PeriodicalIF":2.5,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rare earth free Mn-Al and Mn-Bi magnetic materials: A review","authors":"Shaochang Song,&nbsp;Youliang He","doi":"10.1016/j.jmmm.2025.173187","DOIUrl":"10.1016/j.jmmm.2025.173187","url":null,"abstract":"<div><div>Permanent magnets are indispensable components of electromagnetic devices. They are widely used in many industries, e.g., electrical machines, computers, consumer electronics, power generators, wind turbines, electric vehicles, medical devices, etc. With the transition of internal combustion engine (ICE) vehicles to electric vehicles (EVs) in the transportation sector, the demand for permanent magnets is expected to increase rapidly. Currently, NdFeB magnets dominate the market, due to their superior magnetic properties (high coercivity, remanence, and maximum energy product). However, these magnets heavily depend on the supply of rare earth elements (REEs) like neodymium (Nd), praseodymium (Pr), dysprosium (Dy), and terbium (Tb), etc., which are subject to supply chain risks and price volatility. As an alternative to REE-based permanent magnets, rare-earth-free (REF) magnets have attracted much attention in both the scientific community and industry. Manganese-based compounds, particularly Mn-Al and Mn-Bi, are some of the REF magnets that have gained significant interest due to the abundance of the Mn and Al elements and their reasonably good magnetic properties. Mn-Al alloys exhibit strong ferromagnetism with high anisotropy, showing large potential in magnetic applications. Mn-Bi alloys show desirable magnetic characteristics, including a high magnetic anisotropy, a positive temperature coefficient of coercivity, and a reasonably high Curie temperature, making them suitable candidates for many applications. However, for Mn-Al alloys, forming the magnetic τ-MnAl phase is limited to a very narrow composition range, making its mass-production very challenging. The commercial production of high-quality Mn-Bi magnet is also very limited, as the magnetic performance of this magnet is still not satisfactory, due to the issues stemming from the impurity phases and its complex microstructure. This paper provides a comprehensive review on the development of Mn-Al and Mn-Bi magnets, especially on the crystal structure and phase formation in the Mn-Al and Mn-Bi compounds and explores the underlying factors that hinder their mass production. Furthermore, various techniques aimed at enhancing the microstructure and magnetic properties of the Mn-Al and Mn-Bi compounds are discussed, with particular emphasis on their impacts on the phase purity, grain size, and overall performance. Future directions for the development of Mn-Al and Mn-Bi magnets as an alternative to REE magnets in industrial applications are pointed out.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"628 ","pages":"Article 173187"},"PeriodicalIF":2.5,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption analysis of Fe-ZQ on Cu(110) and V-ZQ on Au(110) using density functional theory","authors":"Adam Hassan Denawi ,&nbsp;Roland Hayn","doi":"10.1016/j.jmmm.2025.173203","DOIUrl":"10.1016/j.jmmm.2025.173203","url":null,"abstract":"<div><div>This study investigates the behavior of polymers composed of transition metals (TM) and zwitterionic quinone (ZQ) molecules in two-dimensional (2D) configurations adsorbed on metallic substrates. We focus on the electronic and magnetic properties of these polymer chains, specifically those based on vanadium (V) and iron (Fe) atoms combined with zwitterionic quinone, when placed on Au(110) and Cu(110) surfaces, respectively. Our investigation employs SGGA + U calculations to provide detailed insights into the adsorption preferences and magnetic characteristics of these polymers. We find that V-ZQ polymers exhibit a preference for adsorption at the short-bridge site on the Au(110) surface. At this site, the vanadium atom displays a magnetic moment of approximately 3 <span><math><msub><mi>μ</mi><mi>B</mi></msub></math></span>, indicating significant magnetic behavior. In contrast, Fe-ZQ polymers are most favorably adsorbed at the hollow (H) site on the Cu(110) surface, with a substantial adsorption energy of E_ads = −1.51 eV. The total magnetic moment per iron atom in these Fe-ZQ polymers is calculated to be 2 <span><math><msub><mi>μ</mi><mi>B</mi></msub></math></span>, which corresponds to a spin state of S = 1. An important charge transfer between substrate and monolayer is calculated, especially for the Cu substrate which influences, however, the local magnetic moments in a negligible way. Magnetic moments are stable despite a remarkable charge transfer. These findings highlight the distinct adsorption behaviors and magnetic properties of V-ZQ and Fe-ZQ polymers on different metallic surfaces, contributing to our understanding of their potential applications in nanotechnology and materials science.</div></div>","PeriodicalId":366,"journal":{"name":"Journal of Magnetism and Magnetic Materials","volume":"628 ","pages":"Article 173203"},"PeriodicalIF":2.5,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}