Results 111 to 120 of about 40,538 (255)

Integration of Freestanding High‐k Oxide Membranes for 2D Ferroelectric Field‐Effect Transistors

Advanced Science, EarlyView.
This work introduces a defect‐tolerant integration strategy that enables freestanding BaTiO3 membranes to form low‐leakage top‐gate junctions with MoS2. The resulting FeFETs exhibit a record 0.22 V nm−1 memory window, ultrahigh‐k response, and near‐ideal subthreshold swings.
Zejing Guo, Xuyang Sha, Fang Xu, Guangyi Huang, Jinfeng Zhang, Yang Mou, Guorui Zhao, Jiaqi Liu, Qing Lan, Wenqing Song, Cheng Zhang, Hai Huang, Changlin Zheng, Lingfei Wang, Hangwen Guo, Jian Shen, Wu Shi   +16 more
wiley   +1 more source

Superconducting LaAlO3/SrTiO3 Nanowires

, 2012
We report superconductivity in quasi-1D nanostructures created at the LaAlO3/SrTiO3 interface. Nanostructures having line widths w~10 nm are formed from the parent two-dimensional electron liquid using conductive atomic force microscope lithography. Nanowire cross-sections are small compared to the superconducting coherence length in LaAlO3/SrTiO3 (w ...
Veazey, Joshua P., Cheng, Guanglei, Irvin, Patrick, Cen, Cheng, Bogorin, Daniela F., Bi, Feng, Huang, Mengchen, Bark, Chung-Wung, Ryu, Sangwoo, Cho, Kwang-Hwan, Eom, Chang-Beom, Levy, Jeremy   +11 more
openaire   +2 more sources

Strain‐Assembled Crystalline SrRuO3 Microtube and Emergent Curvilinear Magnetism

Advanced Science, EarlyView.
The interfacial‐strain assembly based on planar nanomembranes presents a promising approach for constructing novel magnetic microstructures. By employing the perpendicular magnetic anisotropic SrRuO3 freestanding nanomembrane as a model system, we exploit the interfacial strain effect within the crystalline SrTiO3/SrRuO3 bilayer, and successfully ...
Lei Gao, Yuqian Wang, Xiangyu Lyu, Pengyu Liu, Mingtong Zhu, Jin Liu, Mengcheng Li, Ailing Ji, Qinghua Zhang, Lin Gu, Libo Ma, Zexian Cao, Nianpeng Lu   +12 more
wiley   +1 more source

A novel structural expansion in SrTiO3 tuned by electric field and visible-light

AIP Advances, 2017
SrTiO3 is a model perovskite oxide of abundant physical properties, which are closely associated with internal oxygen vacancy (VO) defects. Through in situ X-ray diffraction measurements, we observed a remarkable structural expansion in the near-surface ...
Y. Li, S. J. Peng, T. T. Mao, D. J. Wang, K. M. Wu, J. R. Sun, J. Zhang   +6 more
doaj   +1 more source

Transient Terahertz Oscillations During Photoinduced Polarization Topology Reconfiguration in Ferroelectric Superlattices

Advanced Science, EarlyView.
Terahertz resonances in crystalline heterostructures could close a spectral gap between conventional electronics and photonics while opening new windows on non‐equilibrium lattice dynamics. Femtosecond optical screening of the depolarization field in epitaxial PbTiO3/SrTiO3 superlattices launches a collective polar mode that oscillates near 1 THz and ...
Deepankar Sri Gyan, Hyeon Jun Lee, Xiangwei Guo, Youngjun Ahn, Samuel D. Marks, Mohammed H. Yusuf, Matthew Dawber, James M. Glownia, Diling Zhu, Takahiro Sato, Sanghoon Song, Haidan Wen, Jia‐Mian Hu, Paul G. Evans   +13 more
wiley   +1 more source

Water‐Assisted Exfoliation of HfO2‐Based Membrane for Flexible Robust Ferroelectric Synaptic Transistors

Advanced Science, EarlyView.
A flexible freestanding HfO2‐based ferroelectric membrane is achieved via a water‐assisted exfoliation technique using a Sr4Al2O₇ sacrificial layer. The BaTiO3/Hf0.5Zr0.5O2/BaTiO3 heterostructure maintains robust ferroelectricity and exhibits reliable synaptic plasticity.
Han Zhang, Miao Zeng, Jingxin Chen, Lei Wang, Sai Jiang, Qian Cao, Xuebo Li, Zekun Hou, Chun Shen, Yulin Gan, Ning Fang, Zhaoliang Liao, Ziyao Zhou, Lin Hao   +13 more
wiley   +1 more source

Physical and electrical properties of SrTiO3 and SrZrO3

EPJ Web of Conferences, 2017
Perovskite type oxide strontium titanate (SrTiO3) and strontium zirconate (SrZrO3) ceramic powder has been synthesized using conventional solid state reaction method.
Muhamad Norhizatol Fashren, Maulat Osman Rozana Aina, Idris Mohd Sobri, Mohd Yasin Mohd Najib   +3 more
doaj   +1 more source

Heterogeneous Integration of Flipped Oxide Heterostructure Membranes for Nanoelectronics

Advanced Electronic Materials, EarlyView.
A flipped electronically reconfigurable STO/LAO freestanding membrane is demonstrated and integrated with various host platforms via controlled transfer. Using ultra‐low‐voltage electron‐beam lithography, conductive nanostructures are created at the buried STO/LAO interface. This novel approach enables heterogeneous integration of flipped complex oxide
Ruiqi Sun, Ahmed Omran, Muqing Yu, Kyoungjun Lee, Keeyong Lee, Soli Sung, Sangho Oh, Patrick irvin, Jeremy Levy, Chang‐Beom Eom   +9 more
wiley   +1 more source

Long‐Range Non‐Coulombic Coupling at the LaAlO3/SrTiO3 Interface

Advanced Materials Interfaces
The LaAlO3/SrTiO3 interface hosts a plethora of gate‐tunable electronic phases. Gating of LaAlO3/SrTiO3 interfaces is usually assumed to occur electrostatically. However, increasing evidence suggests that non‐local interactions can influence and, in some
Aditi Nethwewala, Kitae Eom, Muqing Yu, Ranjani Ramachandran, Chang‐Beom Eom, Patrick Irvin, Jeremy Levy   +6 more
doaj   +1 more source

Implications of Transient Negative Capacitance Effect in Ferroelectric Polarization Dynamics

Advanced Electronic Materials, EarlyView.
Transient voltage artifacts observed during ferroelectric switching are shown to originate from measurement circuitry rather than intrinsic negative capacitance. By correlating switching current, time scale, and series resistance, this work establishes practical design rules for reliable pulse‐switching experiments and circuit integration of ...
Marin Alexe
wiley   +1 more source