高性能铁电场效应晶体管的石/石二层中近距离诱导的铁电切换
Kyung Do Kim1, Min Kyu Yeom1, Han Sol Park1
1Department of Materials Science and Engineering and Inter-University Semiconductor Research Center, Seoul National University, Seoul, 08826, South Korea.
Advanced materials (Deerfield Beach, Fla.)
|August 21, 2025
概括
不同材料AlScN和HfZrO2之间实现了近距离的铁电性. 这一突破使得具有增强记忆能力的新型铁电器成为可能.
科学领域:
- 材料科学
- 固态物理
- 纳米技术
背景情况:
- 靠近的铁电,其中一个层的极化切换导致另一个层的切换,仅限于结构相似的材料.
- 之前的演示只涉及石结构的铁电双层.
研究的目的:
- 在晶体学和功能上不同材料的异构结构中演示近距离诱导的铁电切换.
- 探索AlScN/HfZrO2和AlN/HfZrO2双层中的合作切换动态和接口合.
- 使用这些新型异构结构制造和描述铁电场效应晶体管 (FeFET).
主要方法:
- 制造AlScN/HfZrO2和AlN/HfZrO2双层.
- 铁电切换动态和接口合的特征.
- 在p型Si基板上使用AlN/HfZrO2双层制造FeFET装置.
- 对存储窗口,保留和耐久性进行设备性能测试.
主要成果:
- 在不相似的石结构的AlScN/AlN和石结构的HfZrO2之间进行了近距离诱导的铁电切换.
- 观察到合作切换动态和独特的铁电反应,其余极化低,强迫场高.
- 制造了一种具有宽度记忆窗口,优秀的记忆能力和耐久性的FeFET.
结论:
- 通过结构和功能异质性建立了工程铁电的多功能材料设计策略.
- 通过克服结构相似性的局限性,为设计先进的铁电材料和设备开辟了新的途径.
- 突出了不同材料异构在下一代电子应用中的潜力.
更多相关视频
08:00Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
Published on: March 27, 2018
11.2K
10:40A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
Published on: April 8, 2018
8.3K
相关概念视频
Field Effect Transistor
568
Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
568
Biasing of FET
368
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the...
368
MOSFET: Enhancement Mode
478
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
478
Ferromagnetism
2.5K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.5K
