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Ⅳ、Article（冠词）一、必须用the的场合沙漠，河流与群山；岛屿，海峡和海湾；阶级，党派，国家名；组织，团体和机关；方位，朝代，最高级；会议，条约及报刊；（杂志不用the）年代，姓氏复数前；顺序，唯一加习惯；乐器，建筑，海洋,船；定冠词都不能删!!!the desert, the Y angtze River, the Philippines, the English Channel, the United Stated,in the 1990s（20世纪90年代）, in the east, the Tang dynasty, the APEC, the people’s daily, the Greens(格林一家), on the earth, in space, in the morning, the Jin Mao Mansion, the Summer Palace, the Red Sea二、不能用冠词的情况1、街道名、路名、公园名、广场名、大学名、国际上的节日、月份Zhong Shan Park, Qin Hua University*the People’s Park 人民公园*中国传统的节日：the Mid-Autumn Festival the Spring Festivalthe Lantern Festival 元宵节the Dragon-boat Festival 端午节2、在my, her, your, his等物主代词后面使用最高级时，不用the（因为物主代词和the都属于中位限定词，中位限定词相互排斥）# Fishing is his latest hobby.三、加“s”和不加“s”的不同含义letter – letters # Lu Xun is a man of letters(=literature).color – colors(旗帜) green – greens(青菜) custom(习俗) – customs(海关)content(满足) – contents(内容) # live in peace and content 平静而满足地生活着saving(节约) – savings(储蓄) damage(破坏) – damages (赔偿金[U])water – waters(水域) rich – riches(财富=wealth) paper – papers(论文，文件)air – airs(神态) # Don’t put on airs. 别装模作样。
article的同义词article表示"文章，论文的意思，那么你知道article的同义词是什么吗?一起来学习一下吧!同义词辨析：composition, article, essay, paper, prose, thesis, theme, dissertation这些名词均含"文章，论文"之意。
composition ：多指学校里老师给学生的作文练习。
article ：多指在报刊、杂志上发表的非文艺性的文章，包括新闻报导、学术论文等。
essay ：指任何一种非小说性的，篇幅不长、结构简练的文章，如论说文、报道、评论、讽刺性杂文等。
paper ：正式用词，多指在学术刊物上发表或在学术会议上宣读的专题论文，也指高等学校的学期论文，或学校里的作文练习。
prose ：专指散文。
thesis ：既可指毕业论文、学位论文，又可指一般的为阐述学术观点而写的论文。
theme ：一般指大学或高中生作为作业所写的篇幅有限、较完整论述某个观点的文章。
也可指作品或谈话的主要论题。
dissertation ：书面语用词，指独立研究后所写的较为详细的专题文章;也可指学位论文。
词组习语：an article of faith1. 坚定的信念article of virtuthe finished article1. (可投入使用的)成品the genuine article1. 同类人(或物)中的典范article 的例句：1. No one article can ever do justice to the topic of fraud.没有哪一篇文章能把欺诈这一话题讲得恰到好处。
2. There is a lengthy article on Spike Milligan in the Observer newspaper.《观察家报》上有一篇关于斯派克·米利根的长篇文章。
article英文作文格式下载温馨提示:该文档是我店铺精心编制而成，希望大家下载以后，能够帮助大家解决实际的问题。
文档下载后可定制随意修改，请根据实际需要进行相应的调整和使用，谢谢!并且，本店铺为大家提供各种各样类型的实用资料，如教育随笔、日记赏析、句子摘抄、古诗大全、经典美文、话题作文、工作总结、词语解析、文案摘录、其他资料等等，如想了解不同资料格式和写法，敬请关注!Download tips: This document is carefully compiled by theeditor. I hope that after you download them,they can help yousolve practical problems. The document can be customized andmodified after downloading,please adjust and use it according toactual needs, thank you!In addition, our shop provides you with various types ofpractical materials,such as educational essays, diaryappreciation,sentence excerpts,ancient poems,classic articles,topic composition,work summary,word parsing,copyexcerpts,other materials and so on,want to know different data formats andwriting methods,please pay attention!I woke up this morning feeling absolutely exhausted. It was one of those days where no amount of coffee seemed to be able to wake me up. I stumbled out of bed and into the shower, hoping that the hot water would somehow invigorate me.As I stood under the water, I couldn't help but think about the pile of work waiting for me at the office. It seemed like every time I thought I was catching up, another mountain of tasks would appear out of nowhere. It was enough to make me want to crawl back into bed and never come out.But, of course, that wasn't an option. So I dried off, got dressed, and headed out the door. The commute to work was as miserable as ever, with traffic at a standstill and horns blaring all around me. I could feel my stress levels rising with each passing minute.When I finally arrived at the office, I was greeted with even more work than I had anticipated. It was overwhelming, to say the least. But I knew that I had to tackle it head-on if I wanted to have any hope of getting through it all.As the day wore on, I found myself slipping further and further behind. It seemed like for every task I completed, two more appeared in its place. I couldn't help but feel like I was fighting a losing battle.But then, something strange happened. As the day went on, I found myself slipping into a state of flow. The work seemed to almost melt away as I focused in on each task, one at a time. Before I knew it, the end of the day had arrived, and I had somehow managed to get through everything on my to-do list.As I headed home, I couldn't help but feel a sense of accomplishment. Despite the overwhelming nature of the day, I had somehow managed to come out on top. It was a reminder that even on the toughest days, there is always a waythrough. And with that thought in mind, I drifted off to sleep, ready to face whatever challenges the next day might bring.。
How To Write An ArticleFCE写作：应该做的和不不能做的应该做的：•多看其他⼈人写的英⽂文⽂文章。
⽆无论是看报纸，还是看杂志，充分利利⽤用你能接触到的每⼀一篇⽂文章。
将其中的好词好句句好表达划出来，腾抄到笔记中。
只匆匆略略过是不不够的，真正写作的时候，那些你认为你记住的表达⽅方式可能就是回忆不不出来，所以把出现好词好句句型的整句句话抄写下来是⾮非常必要的。
•要明⽩白你的⽬目标读者是谁。
哪怕你知道“写给朋友的信”其实会被剑桥的阅卷⽼老老师读到……也要写给朋友。
常常在写作试题中，会明确地向你指出你的读者是谁，你要依据这点来决定你的⽂文章的⽤用词、表达和写作⻛风格。
•把⽂文章写得有趣。
站在读者的⻆角度想⼀一想，你会愿意读⽆无聊的⽂文章吗？ •使⽤用连接词将你的⽂文章分成段落，并⽤用有逻辑的⽅方式连接你想表达的想法。
这会使你的⽂文章易易读性更更⾼高，尤其是⽂文章较⻓长的时候。
•要⼩小⼼心那些“愚蠢”的错误。
有些⼩小⽑毛病其实你都明⽩白，你都懂，⽼老老师为你批改作⽂文的时候，你⾃自⼰己⼏几乎⻢马上会意识到⾃自⼰己为什什么错，也⻢马上可以改正。
那为什什么不不在⾃自⼰己写完以后，认真再读⼏几遍，争取⾃自⼰己把它们改过来呢？⽐比如代词、时态、搭配、三单形式、单复数形式等等。
•多写，不不断地写。
给⾃自⼰己办⼀一个模拟写作考试，⽤用计时器器按考试时间给⾃自⼰己计时，并且按照考试字数要求来写。
可能有的词和表达你会忘，但不不要太担⼼心，现在忘了了总⽐比考试忘了了要强，因为现在你仍然有机会拿词典去查查这些词怎么说。
不不能做的：•不不要慌。
•不不要忘了了你在写作，不不是在说话。
跟朋友随便便聊天的话，写在作⽂文中是不不合适的。
•不不要为了了凑字数⽽而写。
写作的⽬目的是为了了传达信息，因此写下的每句句话都须有⽤用。
不不要⻋车轱辘话来回说，把没⽤用且重复的话删去。
不不必要的废话说明你不不能很好地控制⾃自⼰己的语⾔言。
sci种的article形式
SCI（Science Citation Index）是国际上具有较高学术影响力的学术期刊文献数据库。
SCI收录的文章形式包括以下几种：
1. 研究论文（research articles）：这是SCI期刊中最常见的文章形式，主要是研究者对某一具体问题进行系统研究和实验，并通过定量数据、分析和讨论得出结论。
2. 评论文章（review articles）：这类文章是作者对某一特定领域进行综述、总结和分析，旨在总结现有研究成果、提出未来研究的方向与问题，并得出结论或展望。
评论文章一般由领域内权威的研究者或专家撰写。
3. 短篇通信（short communications）：这类文章主要是对某一关键问题的初步研究结果进行通报与交流，一般篇幅较短，主要内容集中在研究的原始数据、实验方法和初步结论上。
4. 编者按（editorial）：这是SCI期刊中的一种文章形式，由期刊编辑或编委会成员撰写，主要用于介绍、评述和评论该期刊上发表的一些关键文章、研究领域现状，或对某一相关学术问题进行辨析与讨论。
5. 专论（perspective）：这类文章主要是就某一重要、前沿的学术问题或新兴研究领域进行专门评论与分析，一般由学术界的知名学者、专家所撰写。
以上是SCI期刊中常见的文章形式，每种形式的文章都有其特定的格式和撰写要求，以确保科学研究的严谨性和可信度。
article简单造句带翻译Title: The Benefits of Regular Exercise for Mental Health。
Regular exercise has numerous benefits for physical health, but it is also an effective way to improve mental health. Research has shown that exercise can help reduce symptoms of anxiety and depression, improve mood, and enhance cognitive function. In this article, we will explore the various ways in which regular exercise can benefit mental health.Firstly, exercise has been shown to reduce symptoms of anxiety and depression. Exercise releases endorphins, which are chemicals in the brain that act as natural painkillers and mood elevators. These endorphins can help reduce feelings of anxiety and depression, and improve overall mood. In addition, exercise can also help reduce the levels of stress hormones in the body, such as cortisol, which can contribute to feelings of anxiety and depression.Secondly, regular exercise can improve cognitive function. Exercise has been shown to increase blood flow to the brain, which can enhance cognitive function and improve memory. In addition, exercise can also help improve focus and concentration, which can be particularly beneficial for individuals with attention deficit hyperactivity disorder (ADHD).Thirdly, exercise can help improve self-esteem and body image. Regular exercise can help individuals feel more confident and positive about their bodies, which can leadto improved self-esteem. In addition, exercise can alsohelp individuals achieve their fitness goals, which can provide a sense of accomplishment and boost self-esteem.Fourthly, exercise can improve sleep quality. Exercise has been shown to improve the quality and duration of sleep, which can have a positive impact on mental health. Poor sleep quality has been linked to a range of mental health issues, including anxiety and depression.Finally, regular exercise can provide a sense of social support and connection. Participating in group exercise classes or sports can provide a sense of community and social support, which can be particularly beneficial for individuals who may feel isolated or lonely.In conclusion, regular exercise has numerous benefits for mental health, including reducing symptoms of anxiety and depression, improving cognitive function, enhancingself-esteem and body image, improving sleep quality, and providing a sense of social support and connection. Incorporating regular exercise into a daily routine can have a positive impact on overall mental health and well-being.。
article 造句1、This article mainly studies the interference coupling of external electromagnetic field to STP.本文主要研究外部电磁场对屏蔽双绞线的干扰耦合情况。
2、Henry clipped the article out of the newspaper.亨利从报上剪下了那篇文章。
3、The article suggests that the character will be limited to a cameo part in the film. 文章建议说，品格将被限制在演一个部分，在这部影片中。
4、That article on the refugee problem sure was a think piece!那篇关于难民问题的文章的确是篇引人深思的作品啊。
5、The article was highly defamatory.这篇文章充满诽谤。
6、This article aims to explain what you need to do to facilitate a retrospective for your team.本文旨在说明为推动你的团队进行回顾，你需要做些什么。
7、The typist turned to and finished the article in two hours.打字员着手打起来，花了两个小时把这篇文章打好了。
8、It was nothing now, a small, cheap, purchased article of finery.当我一戴上手?，手?却显得死气沉沉，变成俗气便宜的小饰物。
9、She asked him to contribute a biweekly article on European affairs她约他每两周写一篇有关欧洲情况的文稿。
文章标题：article和chapter在英文区别第一部分：article的定义和用法1.1 article在英文中指的是“文章”或“论文”，通常用于描述一篇长篇的文字作品，可以是新闻报导、学术论文、专题报道等。
1.2 article还可以指“冠词”，即英文中的不定冠词“a”和“an”。
它们用来指代泛指的名词，而不是特指的某个名词。
1.3 article还可以用来指代在法律条文中的特定规定或条款。
第二部分：chapter的定义和用法2.1 chapter在英文中指的是“章节”或“章回”，通常用于书籍、小说、论文等文学作品中，用来划分不同主题或话题。
2.2 chapter还可以用来指代某个组织或机构的分部，或者某个较大的组织的下属部门。
第三部分：article和chapter的区别3.1 在使用上的区别3.1.1 article更多地用于描述一篇文字作品，如报导、论文等，而chapter更多地用于书籍、小说等作品的分章。
3.1.2 article还可以用来指代冠词或法律条文中的规定，而chapter通常不具有这样的用法。
3.2 在含义上的区别3.2.1 article强调的是某一具体的、完整的文字作品，而chapter强调的是作品中的一个具体的章节或分部。
第四部分：article和chapter的通联4.1 在某些情况下，article和chapter可能同时出现在同一个作品中，比如一本书的前言或概述部分可能会包含多个article，每个chapter还包含多篇article。
结论：通过对article和chapter的定义、用法、区别和通联的分析，我们可以更好地理解这两个词在英文中的具体含义和用法。
在写作或翻译中，我们需要根据具体的语境和用途来准确地使用这两个词语，以避免出现歧义或误解。
我们也可以更好地理解英文文学作品中的结构和组织方式，从而更好地欣赏和理解这些作品。
article和chapter在英文中有着不同的含义和用法，而在一些情况下，它们可能会同时出现在同一个作品中，例如在书籍、小说或者学术论文中。
英文作文article下载温馨提示:该文档是我店铺精心编制而成，希望大家下载以后，能够帮助大家解决实际的问题。
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Journal of the Korean Physical Society,Vol.57,No.6,December2010,pp.1875∼1878Effects of Bi Content on the Ferroelectric Properties of BiFeO3Thin FilmsDalhyun Do,Jin Won Kim,Sang Su Kim∗and Won-Jeong KimDepartment of Physics,Changwon National University,Changwon641-773Myang Hwan Lee and Tae Kwon SongSchool of Nano and Advanced Material Engineering,Changwon National University,Changwon641-773(Received12January2010,infinal form25April2010)Two polycrystalline BiFeO3thinfilms were deposited on Pt(111)/Ti/SiO2/Si(100)substrates byusing pulsed laser deposition from nominal composition Bi1.0FeO3and Bi1.1FeO3targets.X-raydiffraction results confirmed that different impurity phases were formed in the Bi1.0FeO3and theBi1.1FeO3thinfilms.The preferred orientation of the Bi1.0FeO3thinfilms is the<110>directionwhile that of the Bi1.1FeO3thinfilms is the<100>direction.The values of the remnant polarization(2P r)of the Bi1.0FeO3and the Bi1.1FeO3film capacitors were49µC/cm2at an applied electricfield of500kV/cm and40µC/cm2at467kV/cm.A similar leakage current property was observedin bothfilms.PACS numbers:77.80.-e,77.80.FmKeywords:Multiferroic BiFeO3thinfilm,Ferroelectric hysteresis loop,Pulsed laser depositionDOI:10.3938/jkps.57.1875I.INTRODUCTIONBismuth ferrite(BiFeO3(BFO))is one of the multifer-roic materials,in which electric,magnetic,and structural order parameters are coupled to each other,resulting in simultaneous ferroic properties such as ferroelectric, ferromagnetic,and ferroelastic properties[1,2].Unlike most other multiferroics,BFO exhibits multiferroic prop-erties at room temperature due to ferroelectricity with a Curie temperature of820◦C and antiferromagnetism with a N´e el temperature of380◦C,which gives great potential for industrial applications[3].In addition,a first-principles study predicted a large ferroelectric po-larization,90∼100µC/cm2,along the[111]direction of the pseudo-cubic perovskite unit cell[4].BFO thin films grown on SrTiO3(STO)single crystals exhibited the value of polarization predicted by Ref.4.The rem-nant polarization P r was100µC/cm2for(111)BFO thin films deposited on STO by using pulsed laser deposition (PLD)[5,6].A similar result was obtained in BFO thin films grown on STO by sputtering[7].Despite the fact that a large remnant polarization was observed in epitaxial BFO thinfilms deposited on STO substrates,experimental results often showed a small remnant polarization in bulk BFO and in BFO thinfilms grown on a Pt-coated Si wafers.BFO single crystals ex-hibited a spontaneous polarization of3.5µC/cm2along ∗E-mail:sskim@changwon.ac.kr the<100>direction,corresponding to6.1µC/cm2along the<111>direction[8].Highly(100)-oriented BFO thin films deposited on Pt/Ti/SiO2/Si substrates by rf mag-netron sputtering showed a remnant polarization of5.2µC/cm2at an electricfield of360kV/cm[9].The most considerable problem is the low electrical resistivity as a result of defects and nonstoichiometry due to the high volatility of Bi.Improved ferroelectric properties were obtained by substituting a small number of donors in BFO,which helped to increase the resistivity by reduc-ing the concentration of oxygen vacancies[10].There-fore,control of the Bi content is one of the important issues to make phase-pure BiFeO3.In this study,the ef-fects of the initial Bi content on the crystal structure and the ferroelectric properties of BFO thinfilms deposited by using PLD were investigated.II.EXPERIMENTAL DETAILSBFO thinfilms were deposited on Pt(111)/Ti/SiO2/ Si(100)substrates by using a pulsed laser deposition method.Two PLD targets containing different Bi con-tents were prepared by using a typical solid-state process with raw powders of Bi2O3(Aldrich,99%)and Fe2O3 (Aldrich,99%).The nominal compositions of the PLD targets were Bi1.0FeO3and Bi1.1FeO3,respectively.A KrF excimer laser with a wavelength of248nm was used to ablate the target at a repetition rate of5Hz.The-1875--1876-Journal of the Korean Physical Society,Vol.57,No.6,December2010Fig.1.XRD patterns of the Bi1.0FeO3and the Bi1.1FeO3 thinfilms.Symbols indicate the substrate(•)and the im-purity phases such as Fe-rich phases( )and Bi-rich phases ( ).laser’s energy density was about1.1J/cm2per pulse. During the deposition of the BFO thinfilms,the sub-strate temperature was kept at550◦C under an oxy-gen partial pressure of30mTorr.After deposition,the films were cooled to room temperature under an oxygen partial pressure of760Torr.Pt top electrodes were de-posited by ion sputtering through a shadow mask,200µm in diameter.The crystal structure and the microstructure of the BFO thinfilms were confirmed by using X-ray diffrac-tion(XRD,Rigaku,MiniFlex II)and scanning electron microscopy(SEM,Tescan,MIRA II LMH).Ferroelec-tric hysteresis loops and leakage current were measured by using a ferroelectric tester(Radiant Tech.Inc.,Pre-cision LC)and an electrometer(Keithley,6517A).III.RESULTS AND DISCUSSIONFigure1shows the XRD patterns of the Bi1.0FeO3 and the Bi1.1FeO3thinfilms.For the measurements, X-rays with Cu Kαradiation from a diffractometer op-erated at30kV and15mA were used.As can be seen in Fig.1,in both thinfilms,polycrystalline BFO is a major phase,along with other impurity phases.In Bi-based oxide ferroelectric materials,the volatility of Bi results in non-stoichiometric structural defects.Thus, the impurity phases marked by“ ”may be related to Fe-rich phases such as Fe2O3and/or Bi2Fe4O9[11].On the other hand,the impurity phases marked by“ ”, appearing in Bi1.1FeO3films,may be related to Bi-rich phases such as Bi2O3[11].The volume fractions of(100),(110),and(111)-oriented grains,which are the major reflection peaks in both BFO thinfilms,were calculated from V(hkl)= I(hkl)/I total,where I(hkl)is the peak intensity of the(hkl)Fig.2.SEM images of the surface morphologies of(a)the Bi1.0FeO3and(b)the Bi1.1FeO3thinfilms.reflection and I total is the sum of all I(hkl)used[12]. The crystallographic orientation is directly related to the polarization vector in most ferroelectric materials and provides useful information to estimate the value of po-larization.The volume fractions of(100)-,(110)-,and (111)-oriented grains in the Bi1.0FeO3thinfilms were less than1%,77%,and22%,respectively,and those in the Bi1.1FeO3films were73%,13%,and14%,respectively. The result indicates that the preferred orientation of the Bi1.0FeO3films is the<110>direction while that of the Bi1.1FeO3films is the<100>direction.Figures2(a)and2(b)show SEM images of the surface morphologies of the Bi1.0FeO3and the Bi1.1FeO3thin films.The images showed that grains of100∼150nm in average size are homogeneously distributed across the surfaces of both thinfilms.The values of thefilm thick-ness measured from the cross-sectional SEM images were 400nm and300nm for the Bi1.0FeO3and the Bi1.1FeO3 thinfilms,respectively.Ferroelectric hysteresis loops were measured by apply-ing a frequency of1.25kHz with triangular voltage pulse. The loops of the Bi1.0FeO3and the Bi1.1FeO3film ca-pacitors were taken at20V(500kV/cm)and14V(467 kV/cm),respectively.Both thinfilms showed asymmet-Effects of Bi Content on the Ferroelectric Properties of BiFeO 3Thin Films –Dalhyun Do et al.-1877-Fig.3.Ferroelectric hysteresis loops of the Bi 1.0FeO 3and the Bi 1.1FeO 3thin films.ric hysteresis loops,indicating that easy polarization do-main switching occurred when a positive electric field was applied while polarization switching was difficult un-der a negative electric field.This effect may be explained by stress induced by the film/electrode interface due to clamping or lattice mismatch and/or domain pinning in-duced by oxygen vacancies [13].Our BFO thin films were deposited on epitaxial Pt bottom electrodes,which might have given a clamping effect on the films while the interface between the Pt top electrodes and the film layer was free from a clamping effect.Also,the volatility of Bi ions results in the formation of oxygen vacancies.The remnant polarization (2P r )and the coercive elec-tric field (2E c )were estimated from the hysteresis loops.The values of 2P r and 2E c of the Bi 1.0FeO 3and the Bi 1.1FeO 3film capacitors were 49µC/cm 2and 526kV/cm at an applied electric field of 500kV/cm,respec-tively,and 40µC/cm 2and 582kV/cm at an applied electric field of 467kV/cm,respectively.The devices broke down for applied electric fields above 500kV/cm due to the possibly high leakage current.Thus,it was impossible to obtain the values of 2P r and 2E c from the saturation hysteresis loop.The remnant polarization estimated from the loops is somewhat an average value from several crystallographic orientations.This makes direct comparison of remnant polarizations with each other difficult.It was assumed that P r (111)=(√3/√2)P r (110)=(√3)P r (100)in BFO because the spontaneous polarization vector lies along the <111>directions in the rhombohedral BFO phase [5].From the volume fraction of grains with each orientation calculated from the XRD patterns and the 2P r obtained from the hysteresis loops,the values of 2P r (111)of the Bi 1.0FeO 3and the Bi 1.1FeO 3thin films could be close to 57µC/cm 2and 60µC/cm 2,respec-tively.This simply implies that both thin films have similar ferroelectric properties in terms of polarization,regardless of the formation of different impurity phases,as shown in Fig.1.However,identifying theimpurityFig.4.Leakage current density as a function of an applied electric field for the Bi 1.0FeO 3and the Bi 1.1FeO 3thin films.phases is necessary.The leakage current was measured at room tempera-ture under a dc applied electric field.Figure 4shows the leakage current density as a function of the applied elec-tric field for Bi 1.0FeO 3and Bi 1.1FeO 3films.Overall,the Bi 1.0FeO 3film capacitor showed a slightly lower leakage current density than the Bi 1.1FeO 3film capacitor.How-ever,the leakage current density is too high to achieve the remnant polarization predicted by the first-principles study and observed in epitaxial BFO thin films grown on STO substrates.IV.CONCLUSIONThe BFO thin films were prepared from BFO targets with nominal compositions of Bi 1.0FeO 3and Bi 1.1FeO 3by using PLD.Due to the volatility of Bi ions,impurity phases were formed in addition to major BiFeO 3phase.The impurity phases of the Bi 1.0FeO 3thin film may be related to Fe-rich phases while those of the Bi 1.1FeO 3thin film may be related to Bi-rich phases.Both BFO thin films showed almost similar ferroelectric and leakage current properties,regardless of the formation of the dif-ferent impurity phases.On the other hand,compared to the epitaxial BFO thin films grown on STO substrates,a relatively small remnant polarization was observed.The origin may be related to the high leakage current.ACKNOWLEDGMENTSThis work was supported by the Priority Research Centers Program through the National Research Foun-dation of Korea (NRF)funded by the Ministry of Edu-cation,Science and Technology (2009-0094064).-1878-Journal of the Korean Physical Society,Vol.57,No.6,December2010REFERENCES[1]N.A.Spaldin and M.Fiebig,Science309,391(2005).[2]G.Catalan and J.F.Scott,Adv.Mater.21,2463(2009).[3]R.Ramesh and N.A.Spaldin,Nat.Mater.6,21(2007).[4]J. 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