热量也可以记录信息
文章来源:未知 文章作者:enread 发布时间:2012-02-08 05:17 字体: [ ]  进入论坛
(单词翻译:双击或拖选)

An international team of scientists has demonstrated a revolutionary new way of magnetic recording1 which will allow information to be processed hundreds of times faster than by current hard drive technology. The researchers found they could record information using only heat -- a previously2 unimaginable scenario3. They believe this discovery will not only make future magnetic recording devices faster, but more energy-efficient too.

The results of the research, which was led by the University of York's Department of Physics, are reported in the February edition of Nature Communications.

York physicist4 Thomas Ostler said: "Instead of using a magnetic field to record information on a magnetic medium(方法,媒介) , we harnessed much stronger internal forces and recorded information using only heat. This revolutionary method allows the recording of Terabytes (thousands of Gigabytes) of information per second, hundreds of times faster than present hard drive technology. As there is no need for a magnetic field, there is also less energy consumption."

The multinational5 team of scientists included researchers from Spain, Switzerland, Ukraine, Russia, Japan and the Netherlands. Experimental work was carried out at the Paul Scherrer Institut in Switzerland, the Ioffe Physical Technical Institute of the Russian Academy of Sciences and Radboud University Nijmegen, Netherlands.

Dr Alexey Kimel, from the Institute of Molecules6 and Materials, Radboud University Nijmegen, said: "For centuries it has been believed that heat can only destroy the magnetic order. Now we have successfully demonstrated that it can, in fact, be a sufficient stimulus7 for recording information on a magnetic medium."

Modern magnetic recording technology employs the principle that the North pole of a magnet is attracted to the South pole of another and two like poles repulse8(拒绝,驱逐) . Until now it has been believed that in order to record one bit of information -- by inverting9 the poles of a magnet -- there was a need to apply an external magnetic field. The stronger the applied10 field, the faster the recording of a magnetic bit of information.

However, the team of scientists has demonstrated that the positions of both the North and South poles of a magnet can be inverted11 by an ultrashort heat pulse, harnessing the power of much stronger internal forces of magnetic media.



点击收听单词发音收听单词发音  

1 recording UktzJj     
n.录音,记录
参考例句:
  • How long will the recording of the song take?录下这首歌得花多少时间?
  • I want to play you a recording of the rehearsal.我想给你放一下彩排的录像。
2 previously bkzzzC     
adv.以前,先前(地)
参考例句:
  • The bicycle tyre blew out at a previously damaged point.自行车胎在以前损坏过的地方又爆开了。
  • Let me digress for a moment and explain what had happened previously.让我岔开一会儿,解释原先发生了什么。
3 scenario lZoxm     
n.剧本,脚本;概要
参考例句:
  • But the birth scenario is not completely accurate.然而分娩脚本并非完全准确的。
  • This is a totally different scenario.这是完全不同的剧本。
4 physicist oNqx4     
n.物理学家,研究物理学的人
参考例句:
  • He is a physicist of the first rank.他是一流的物理学家。
  • The successful physicist never puts on airs.这位卓有成就的物理学家从不摆架子。
5 multinational FnrzdL     
adj.多国的,多种国籍的;n.多国籍公司,跨国公司
参考例句:
  • The firm was taken over by a multinational consulting firm.这家公司被一个跨国咨询公司收购。
  • He analyzed the relationship between multinational corporations and under-developed countries.他分析了跨国公司和不发达国家之间的关系。
6 molecules 187c25e49d45ad10b2f266c1fa7a8d49     
分子( molecule的名词复数 )
参考例句:
  • The structure of molecules can be seen under an electron microscope. 分子的结构可在电子显微镜下观察到。
  • Inside the reactor the large molecules are cracked into smaller molecules. 在反应堆里,大分子裂变为小分子。
7 stimulus 3huyO     
n.刺激,刺激物,促进因素,引起兴奋的事物
参考例句:
  • Regard each failure as a stimulus to further efforts.把每次失利看成对进一步努力的激励。
  • Light is a stimulus to growth in plants.光是促进植物生长的一个因素。
8 repulse dBFz4     
n.击退,拒绝;vt.逐退,击退,拒绝
参考例句:
  • The armed forces were prepared to repulse any attacks.武装部队已作好击退任何进攻的准备。
  • After the second repulse,the enemy surrendered.在第二次击退之后,敌人投降了。
9 inverting 665238808c06737d76fe243704855a65     
v.使倒置,使反转( invert的现在分词 )
参考例句:
  • She caught the insect by inverting her cup over it. 她用杯子扣住了那只昆虫。 来自《简明英汉词典》
  • He started out inverting 2,000,000, but eventually invested only 200,000. 他们开始打算投资200万,可是后来只有20万。 来自互联网
10 applied Tz2zXA     
adj.应用的;v.应用,适用
参考例句:
  • She plans to take a course in applied linguistics.她打算学习应用语言学课程。
  • This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
11 inverted 184401f335d6b8661e04dfea47b9dcd5     
adj.反向的,倒转的v.使倒置,使反转( invert的过去式和过去分词 )
参考例句:
  • Only direct speech should go inside inverted commas. 只有直接引语应放在引号内。
  • Inverted flight is an acrobatic manoeuvre of the plane. 倒飞是飞机的一种特技动作。 来自《简明英汉词典》
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