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中国物理B（英文版）
中国物理B（英文版）

欧阳钟灿

月刊

1674-1056

010-82649026 82649519

100080

北京603信箱

中国物理B（英文版）/Journal Chinese Physics　BCSCDCSTPCD北大核心EISCI
查看更多>>该刊与《物理学报》是中国物理学会主办的物理学英文和中文的综合性国际学术月刊。刊登物理学科领域中，国内外未曾公开发表的具有创新性的科学研究最新成果。内容包括物理学各领域的理论、实验技术及应用。两刊内容不重复。两刊以论文水平高、创新性强，发表速度快的特点，受到国内外物理学工作者的好评和关注。被国际著名的SCI等10种以上检索系统收录。曾多次被评为中国科学院优秀期刊一等奖，1999，2003，2005年荣获第一、第二和第三届国家期刊奖，2001年被国家新闻出版总署评为“中国期刊方阵”中的双高（高知名度、高学术水平）期刊。2001，2002，2003年两刊都评为百种中国杰出期刊。
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    Edge modes in finite-size systems with different edge terminals

    王会平任莉张修丽秦立国...
    432-439页
    查看更多>>摘要：We investigate the behavior of edge modes in the presence of different edge terminations and long-range(LR)hopping.Here,we mainly focus on such model crystals with two different types of structures(type Ⅰ:"…-P-Q-P-Q-…"and type Ⅱ:"…=P-Q=P-Q=…"),where P and Q represent crystal lines(CLs),while the symbols"-"and"="denote the distance between the nearest neighbor(NN)CLs.Based on the lattice model Hamiltonian with LR hopping,the existence of edge modes is determined analytically by using the transfer matrix method(TMM)when different edge terminals are taken into consideration.Our findings are consistent with the numerical results obtained by the exact diagonalization method.We also notice that edge modes can exhibit different behaviors under different edge terminals.Our result is helpful in solving novel edge modes in honeycomb crystalline graphene and transition metal dichalcogenides with different edge terminals.
      原文链接:
    • 万方数据
    • 维普

    Prediction of novel layered indium halide superconductors

    袁志红孟静静刘瑞郑鹏宇...
    440-446页
    查看更多>>摘要：We design two new layered indium halide compounds LaOInF2 and LaOInCl2 by means of first-principles calcu-lations and evolutionary crystal structure prediction.We find both compounds crystallize in a tetragonal structure with P4/nmm space group and have indirect band gaps of 2.58 eV and 3.21 eV,respectively.By substituting O with F,both of them become metallic and superconducting at low temperature.The F-doping leads to strong electron-phonon coupling in the low-energy acoustic phonon modes which is mainly responsible for the induced superconductivity.The total electron-phonon coupling strength are 1.86 and 1.48,while the superconducting transition temperature(Tc)are about 7.2 K and 6.5 K with 10％and 5％F doping for LaOInF2 and LaOInC12,respectively.
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    • 万方数据
    • 维普

    Spin-orbit torque effect in silicon-based sputtered Mn3Sn film

    卢莎孟德全Adnan Khan王子傲...
    447-453页
    查看更多>>摘要：Noncollinear antiferromagnet Mn3Sn has shown remarkable efficiency in charge-spin conversion,a novel magnetic spin Hall effect,and a stable topological antiferromagnetic state,which has resulted in great interest from researchers in the field of spin-orbit torque.Current research has primarily focused on the spin-orbit torque effect of epitaxially grown noncollinear antiferromagnet Mn3Sn films.However,this method is not suitable for large-scale industrial preparation.In this study,amorphous Mn3Sn films and Mn3Sn/Py heterostructures were prepared using magnetron sputtering on silicon substrates.The spin-torque ferromagnetic resonance measurement demonstrated that only the conventional spin-orbit torque effect generated by in-plane polarized spin currents existed in the Mn3Sn/Py heterostructure,with a spin-orbit torque efficiency of 0.016.Additionally,we prepared the perpendicular magnetized Mn3Sn/CoTb heterostructure based on amorphous Mn3Sn film,where the spin-orbit torque driven perpendicular magnetization switching was achieved with a lower critical switching current density(3.9 x 107 A/cm2)compared to Ta/CoTb heterostructure.This research reveals the spin-orbit torque effect of amorphous Mn3Sn films and establishes a foundation for further advancement in the practical application of Mn3Sn materials in spintronic devices.
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    Polarity-controllable magnetic skyrmion filter

    艾啸林李慧婷张雪枫李昌锋...
    454-459页
    查看更多>>摘要：The skyrmion generator is one of the indispensable components for the future functional skyrmion devices,but the pro-cess of generating skyrmion cannot avoid mixing with other magnetic textures,such as skyrmionium and nested skyrmion bags.These mixed magnetic textures will inevitably lead to the blockage of skyrmion transport and even the distortion of data information.Therefore,the design of an efficient skyrmion filter is of great significance for the development of skyrmion-based spintronic devices.In this work,a skyrmion filter scheme is proposed,and the high-efficiency filtering function is demonstrated by micromagnetic simulations.The results show that the filtering effect of the scheme depends on the structure geometry and the spin current density that drives the skyrmion.Based on this scheme,the polarity of the filtered skyrmion can be controlled by switching the magnetization state at the output end,and the"cloning"of the skyrmion can be realized by geometric optimization of the structure.We believe that in the near future,the skyrmion filter will become one of the important components of skyrmion-based spintronic devices in the future.
      原文链接:
    • 万方数据
    • 维普

    Enhanced soft magnetic properties of SiO2-coated FeSiCr magnetic powder cores by particle size effect

    葛铭悦肖礼康刘潇如潘嶙...
    460-468页
    查看更多>>摘要：It has been known that metal FeSiCr powders with large average particle sizes have been typically employed to prepare magnetic powder cores(SMCs),with few studies reported on the influence of magnetic properties for original powders with various average particle sizes less than 10 μm.In this work,SiO2-coated FeSiCr SMCs with different small particle sizes were synthesized using the sol-gel process.The contribution of SiO2 coating amount and voids to the soft magnetic properties was elaborated.The mechanism was revealed such that smaller particle sizes with less voids could be beneficial for reducing core loss in the SMCs.By optimizing the core structure,permeability and magnetic loss of 26 and 262 kW/cm3 at 100 kHz and 50 mT were achieved at a particle size of 4.8 μm and ethyl orthosilicate addition of 0.1 mL/g.The best DC stacking performance,reaching 87％,was observed at an ethyl orthosilicate addition rate of 0.25 mL/g under 100 Oe.Compared to other soft magnetic composites(SMCs),the FeSiCr/SiO2 SMCs exhibit significantly reduced magnetic loss.It further reduces the magnetic loss of the powder core,providing a new strategy for applications of SMCs at high frequencies.
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    Skyrmion motion induced by spin-waves on magnetic nanotubes

    Tijjani Abdulrazak刘雪娟王振宇曹云姗...
    469-475页
    查看更多>>摘要：We investigate the skyrmion motion driven by spin waves on magnetic nanotubes through micromagnetic simulations.Our key results include demonstrating the stability and enhanced mobility of skyrmions on the edgeless nanotube geometry,which prevents destruction at boundaries—a common issue in planar geometries.We explore the influence of the damping coefficient,amplitude,and frequency of microwaves on skyrmion dynamics,revealing a non-uniform velocity profile char-acterized by acceleration and deceleration phases.Our results show that the skyrmion Hall effect is significantly modulated on nanotubes compared to planar models,with specific dependencies on the spin-wave parameters.These findings pro-vide insights into skyrmion manipulation for spintronic applications,highlighting the potential for high-speed and efficient information transport in magnonic devices.
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    • 万方数据
    • 维普

    Low Gilbert damping in Bi/In-doped YIG thin films with giant Faraday effect

    湛劲王一王先杰张晗旭...
    476-484页
    查看更多>>摘要：Magnetic films with low Gilbert damping are crucial for magnonic devices,which provide a promising platform for realizing ultralow-energy devices.In this study,low Gilbert damping and coercive field were observed in Bi/In-doped yttrium iron garnet(BiIn:YIG)thin films.The BiIn:YIG(444)films were deposited onto different substrates using pulsed laser deposition.Low coercivity(＜1 Oe)with saturation magnetization of 125.09 emu/cc was achieved along the in-plane direction of BiIn:YIG film.The values of Gilbert damping and inhomogeneous broadening of ferromagnetic resonance in BiIn:YIG films were obtained to be as low as 4.05 × 10-4 and 5.62 Oe,respectively.In addition to low damping,the giant Faraday rotation angles(up to 2.9 × 104 deg/cm)were also observed in the BiIn:YIG film.By modifying the magnetic structure and coupling effect between Bi3+and Fe3+of Bi:YIG,doped In3+plays a key role on variation of the magnetic properties.The low damping and giant Faraday effect made the BiIn:YIG film an appealing candidate for magnonic and magneto-optical devices.
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    • 维普

    Impact of Co2+substitution on structure and magnetic properties of M-type strontium ferrite with different Fe/Sr ratios

    孙洋刘若水宫华扬沈保根...
    485-492页
    查看更多>>摘要：Ion substitution has significantly improved the performance of ferrite magnets,and cobalt remains a key area of research.Studies on the mechanism of Co2+in strontium ferrite,especially SrFe2n-xCoxO19-δ(n=6.1-5.4;x=0.05-0.20)synthesized using the ceramic method,showed that Co2+preferentially enters the lattice as the Fe/Sr ratio decreases.This results in a decrease in the lattice constants a and c due to oxygen vacancies and iron ion deficiency.The impact of Co substitution on morphology is minor compared to the effect of the Fe/Sr ratio.As the Fe/Sr ratio decreases and the Co content increases,the saturation magnetization decreases.The magnetic anisotropy field exhibits a nonlinear change,generally increasing with higher Fe/Sr ratios and Co content.These changes in the performance of permanent magnets are attributed to the absence of Fe3+ions at the 12k+2a and 2b sites and the substitution of Co2+at the 2b site.This suggests that by adjusting the Fe/Sr ratio and appropriate Co substitution,the magnetic anisotropy field of M-type strontium ferrite can be effectively optimized.
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    The B-site ordering in RFe0.5Cr0.5O3 ceramics and its effect on magnetic properties

    侯利石磊杨利平刘义强...
    493-501页
    查看更多>>摘要：To insight into the B-site ordering in RFe0.5Cr0.5O3 ceramics,a series of RFe0.5Cr0.5O3 ceramics(R=La,Y,Lu)were synthesized by the sol-gel method,and the structural and magnetic properties were systemically investigated.By using the Rietveld refinement of all samples,it is found that the structural distortion is increased as the R ionic radius decreases,leading to the weakened interactions between Fe/Cr ions.Moreover,the Fe and Cr are arranged in disorder in LaFe0.5Cr0.5O3,but partially ordered in YFe0.5Cr0.5O3 and LuFe0.5Cr0.5O3,showing an increasing trend of the proportion of ordered domains with the decrease of R ionic radius.Through fitting the temperature-dependent magnetizations,it is identified that the magnetization reversal(MR)in disorder LaFe0.5Cr0.5O3 is resulted from the competition between the moments of Cr and Fe sublattices.In the partially ordered YFe0.5Cr0.5O3 and LuFe0.5Cr0.5O3 ceramics,because of the presence of Fe-O-Cr networks in the ordered domains whose moment is antiparallel to that of Fe-O-Fe and Cr-O-Cr in the disordered domains,the compensation temperature Tcomp of MR is increased by nearly 50 K.These results suggest that the changing of R-site ions could be used very effectively to modify the Fe-O-Cr ordering,apart from the structural distortion,which has a direct effect on the magnetic exchange interactions in RFe0.5Cr0.5O3 ceramics.Then at values of composition where ordered domains are expected to be larger in number as compared to disordered domains and with a weaker structural distortion,one can expect a higher transition temperature Tcomp,providing a different view for adjustment of the magnetic properties of RFe0.5Cr0.5O3 ceramics for practical applications.
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    Exploring negative ion behaviors and their influence on properties of DC magnetron sputtered ITO films under varied power and pressure conditions

    李茂洋莫超超季佩宇张潇漫...
    502-510页
    查看更多>>摘要：We deposited indium-tin-oxide(ITO)films on silicon and quartz substrates by magnetron sputtering technology in pure argon.Using electrostatic quadrupole plasma diagnostic technology,we investigate the effects of discharge power and discharge pressure on the ion flux and energy distribution function of incidence on the substrate surface,with special attention to the production of high-energy negative oxygen ions,and elucidate the mechanism behind its production.At the same time,the structure and properties of ITO films are systematically characterized to understand the potential effects of high energy oxygen ions on the growth of ITO films.Combining with the kinetic property analysis of sputtering dam-age mechanism of transparent conductive oxide(TCO)thin films,this study provides valuable physical understanding of optimization of TCO thin film deposition process.
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    • 维普