2015-02-05 11:13:00

NCKU Transnational Research Team Develops First All-electric Spin Transistor

2015-02-05 11:13:00 | Share this post:

Scientists have long been puzzled by the spin-field-effect transistor (spin FET) and great efforts have been put into attempt of solving the long challenged problems. Now a Tainan-based National Cheng Kung University (NCKU) research team has successfully developed the first spin FET.

 

ImgDesc
ImgDesc


A team led by Prof. Tse-Ming Chen from the Department of Physics at NCKU, in cooperation with Cavendish Laboratory, and University College of London in UK, has developed an all-electric all-semiconductor spin FET, the university revealed at a press conference in Taipei today.

Prof. Chen said, the spin FET, since envisioned by Datta and Das in 1990, has long been believed to be the solution where Moore’s law fails to deliver.

However, the realization of a functional spin FET has hitherto not been achieved, owing to several technical problems such as the low spin-injection efficiency, the limited spin lifetime, and the phase spread of the accumulated spins, according to Prof. Chen.

 



He said, “We solved the problems by employing two quantum point contacts as spin injectors and detectors.”

“We exploit two engineering architectures of spin-orbit coupling, the interaction between the electron’s spin and its motion, on the device to electrically inject, manipulate, and detect spins,” he added.

Prof. Chen also explained, The all-electric all-semiconductor characteristics of such a device allow it to be easily compatible with large-scale integrated circuits and hold the most promise for information processing in the post-CMOS era.

Their results published in the January 2015 issue of Nature Nanotechnology with additional introduction in news & views article written by Marc Cahay.

The technology underlying the study is now in the process of applying for a patent, according to Prof. Chen.

 

 

Source: NCKU News Center

Share this post:

Related articles

梁永成副主任從「高維度量子糾纏中萃取出隱藏的量子特性」 本研究發表於PRL,並獲Phys.org報導

2025-05-12 10:19:00

Research Highlights

本中心梁永成副主任與山東大學團隊合作,最近在《Physical Review Letters》上發表了一項令人振奮的研究成果,並且獲得國際知名的科學研究和技術新聞平台- Phys.Org的報導。 梁永成副主任的研究群與合作團隊使...

Read More

精準測量新篇章 成大前沿量子中心最新研究為高靈敏量子感測器創新局

2025-03-06 17:59:00

Research Highlights

想像在未來的世界裡,利用高靈敏量子感測器,即使是微小的腫瘤也無所遁形。國立成功大學前沿量子科技研究中心主任陳岳男領導的研究團隊,經過多年的努力,成功提出一套全新的理論框架,可精確描述非馬可夫開放量子系統中的特異點行為,為設計高靈敏量子...

Read More

突破量子通訊的未來 成大陳岳男團隊研究量子操縱性之量化分類登上國際自然通訊期刊

2022-09-05 10:57:00

Research Highlights

如何在不受信任的先決條件下進行量子通訊?國立成功大學物理系特聘教授、前沿量子科技研究中心主任陳岳男統籌和古煥宇博士主導的「量子操縱性的完全分類與其量測不兼容性之關聯」(Complete classification of steera...

Read More

Major Breakthrough in Integrated Circuits! Researchers Develop Transistors at the 0.7nm Scale

2018-10-18 13:31:00

Research Highlights

High-performance miniaturized transistors are the core of every digital device from smartphones to biomedicine, genet...

Read More