Results 91 to 100 of about 790,133 (299)

Displacive In‐Plane Ferroelectricity with Domain‐Specific Curie Temperature in Van der Waals Semiconductors

Advanced Science, EarlyView.
Temperature‐dependent electron diffraction on tin monochalcogenides demonstrates a gradual displacive transformation between ferroelectric and paraelectric phases with significant variability in lattice constants and Curie temperature (TC). Periodic variations exist even between domains in individual crystals, implying a domain‐specific Curie ...
Peter Sutter, Eli Sutter
wiley   +1 more source

Mid-wavelength infrared high operating temperature pBn photodetectors based on type-II InAs/InAsSb superlattice

AIP Advances, 2020
A high operating temperature mid-wavelength infrared pBn photodetector based on the type-II InAs/InAsSb superlattice on a GaSb substrate has been demonstrated.
Donghai Wu, Jiakai Li, Arash Dehzangi, Manijeh Razeghi   +3 more
doaj   +1 more source

Mid-Wave Infrared InAs/GaSb Type-II Superlattice Photodetector With n-B-p Design Grown on GaAs Substrate

IEEE Journal of Quantum Electronics, 2019
In this paper, we report the direct growth and characterization of a mid-wave infrared InAs/GaSb type-II superlattice n-B-p photodetector on a GaAs substrate.
Zhuo Deng, Daqian Guo, Jian Huang, Huiyun Liu, Jiang Wu, Baile Chen   +5 more
semanticscholar   +1 more source

Disorder‐Induced Extremely Low Thermal Conductivity of Graphite Fluoride

Advanced Science, EarlyView.
This article investigates the effect of fluorination on the thermal conductivity of graphite fluoride, demonstrating the relationship between structural modification and thermal conductivity in an extreme case. The record‐low through‐plane thermal conductivity measured in exfoliated graphite fluoride flakes was found to correlate with the wide ...
Wonsik Lee, Donghoon Moon, Ziyan Qian, Jinwoo Kim, Changheon Kim, Yeojin Lee, Hyobin Yoo, Richard B. Wilson, Qiye Zheng, Gwan‐Hyoung Lee, Hyejin Jang   +10 more
wiley   +1 more source

Electronic and Magnetic Reconstructions in Manganite Superlattices

, 2013
We investigate the electronic reconstruction at the interface between ferromagnetic metallic (FM) and antiferromagnetic insulating (AFI) manganites in superlattices using a two-orbital double-exchange model including superexchange interactions, Jahn ...
Kampf, Arno P., Pradhan, Kalpataru
core   +1 more source

Effects of the electrostatic environment on superlattice Majorana nanowires [PDF]

, 2019
Finding ways of creating, measuring, and manipulating Majorana bound states (MBSs) in superconducting-semiconducting nanowires is a highly pursued goal in condensed matter physics.
Escribano, Samuel D., Levy Yeyati, Alfredo, Oreg, Yuval, Prada, Elsa   +3 more
core   +3 more sources

Upside-down InAs/InAs1-xSbx type-II superlattice-based nBn mid-infrared photodetectors with an AlGaAsSb quaternary alloy barrier.

Optics Express, 2020
Ga-free InAs/InAsSb type-II superlattices (T2SLs) are emerging as candidate materials for high temperature operation of mid-infrared photodetectors, which are critical for infrared technology with an aim to provide low-cost and compact detection systems.
G. Deng, Xinbo Song, Mingguo Fan, Tingting Xiao, Zhibing Luo, Niu Chen, Wenyun Yang, Yiyun Zhang   +7 more
semanticscholar   +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

Cluster packing geometry for Al-based F-type icosahedral alloys

, 2013
This paper presents a new highly stable periodic approximant to the Al-based F-type icosahedral quasicrystals, i-Al-Pd-TM (TM=transition metals). The structure of this intermetallic Al-Pd-Cr-Fe compound is determined ab initio using single-crystal X-ray ...
Fujita, Nobuhisa, Takano, Hikari, Tsai, An-Pang, Yamamoto, Akiji   +3 more
core   +1 more source

High operating temperature InAs/GaSb type-II superlattice detectors on GaAs substrate for the long wavelength infrared

Infrared physics & technology, 2019
We report on the development of InAs/GaSb type-II superlattice infrared photodetectors for operation under temperatures reachable with thermoelectric cooling.
R. Müller, V. Gramich, M. Wauro, J. Niemasz, L. Kirste, V. Daumer, A. Janaszek, J. Jureńczyk, R. Rehm   +8 more
semanticscholar   +1 more source