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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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    Interfacial stress engineering toward enhancement of ferroelectricity in Al doped HfO2 thin films

    陈思学陈明明刘圆曹大威...
    635-642页
    查看更多>>摘要：Ferroelectric HfO2 has attracted much attention owing to its superior ferroelectricity at an ultra-thin thickness and good compatibility with Si-based complementary metal-oxide-semiconductor(CMOS)technology.However,the crys-tallization of polar orthorhombic phase(o-phase)HfO2 is less competitive,which greatly limits the ferroelectricity of the as-obtained ferroelectric HfO2 thin films.Fortunately,the crystallization of o-phase HfO2 can be thermodynamically mod-ulated via interfacial stress engineering.In this paper,the growth of improved ferroelectric Al doped HfO2(HfO2∶Al)thin films on(111)-oriented Si substrate has been reported.Structural analysis has suggested that nonpolar monoclinic HfO2∶Al grown on(111)-oriented Si substrate suffered from a strong compressive strain,which promoted the crystalliza-tion of(111)-oriented o-phase HfO2 in the as-grown HfO2∶Al thin films.In addition,the in-plane lattice of(111)-oriented Si substrate matches well with that of(111)-oriented o-phase HfO2,which further thermally stabilizes the o-phase HfO2.Accordingly,an improved ferroelectricity with a remnant polarization(2Pr)of 26.7 pC/cm2 has been obtained.The results shown in this work provide a simple way toward the preparation of improved ferroelectric HfO2 thin films.
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    A solution method for decomposing vector fields in Hamilton energy

    赵昕易鸣魏周超朱媛...
    643-652页
    查看更多>>摘要：Hamilton energy,which reflects the energy variation of systems,is one of the crucial instruments used to analyze the characteristics of dynamical systems.Here we propose a method to deduce Hamilton energy based on the existing systems.This derivation process consists of three steps:step 1,decomposing the vector field;step 2,solving the Hamilton energy function;and step 3,verifying uniqueness.In order to easily choose an appropriate decomposition method,we propose a classification criterion based on the form of system state variables,i.e.,type-Ⅰ vector fields that can be directly decomposed and type-Ⅱ vector fields decomposed via exterior differentiation.Moreover,exterior differentiation is used to represent the curl of low-high dimension vector fields in the process of decomposition.Finally,we exemplify the Hamilton energy function of six classical systems and analyze the relationship between Hamilton energy and dynamic behavior.This solution provides a new approach for deducing the Hamilton energy function,especially in high-dimensional systems.
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    Probing nickelate superconductors at atomic scale:A STEM review

    雷一涵王扬河宋家豪葛锦昕...
    前插1,1-10页
    查看更多>>摘要：The discovery of nickelate superconductors,including doped infinite-layer(IL)nickelates RNiO2(R=La,Pr,Nd),layered square-planar nickelate Nd6Ni5O12,and the Ruddlesden-Popper(RP)phase La3Ni2O7,has spurred immense in-terest in fundamental research and potential applications.Scanning transmission electron microscopy(STEM)has proven crucial for understanding structure-property correlations in these diverse nickelate superconducting systems.In this review,we summarize the key findings from various modes of STEM,elucidating the mechanism of different nickelate supercon-ductors.We also discuss future perspectives on emerging STEM techniques for unraveling the pairing mechanism in the"nickel age"of superconductivity.
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