Results 21 to 30 of about 10,630,318 (313)

Atomic scale symmetry and polar nanoclusters in the paraelectric phase of ferroelectric materials [PDF]

Nature Communications, 2020
The nature of the “forbidden” local- and long-range polar order in nominally non-polar paraelectric phases of ferroelectric materials has been an open question since the discovery of ferroelectricity in oxide perovskites, ABO3.
A. Benčan, E. Oveisi, Sina Hashemizadeh, V. Veerapandiyan, T. Hoshina, T. Rojac, M. Deluca, G. Dražič, D. Damjanović   +8 more
semanticscholar   +1 more source

Dirac fermion metagratings in graphene

npj 2D Materials and Applications, 2021
We theoretically demonstrate a Dirac fermion metagrating which is an artificially engineered material in graphene. Although its physics mechanism is different from that of optical metagrating, both of them can deliver waves to one desired diffraction ...
Pengcheng Wan, Yinghui Ren, Qianjing Wang, Di Huang, Ling Zhou, Haiqin Guo, Junjie Du   +6 more
doaj   +1 more source

Dielectric Relaxation Behavior of BTO/LSMO Heterojunction

Nanomaterials, 2021
The BaTiO3 (BTO)/La0.7Sr0.3MnO3 (LSMO) magnetoelectric composite films were prepared by sol-gel method on STO (001) substrates. The heterojunction has highly preferred orientation and exhibits well ferroelectric properties with perfect hysteresis loops ...
Guoqiang Song, Yuanyuan Zhang, Sheng Li, Jing Yang, Wei Bai, Xiaodong Tang   +5 more
doaj   +1 more source

Infrared emission bands and thermal effects for 440-nm-emitting GaN-based laser diodes

AIP Advances, 2020
Broad emission bands due to defects in (In,Ga,Al)N laser diodes operating at 440 nm are investigated using continuous-wave and pulsed currents. In addition to known yellow–green and short-wave infrared bands, defect emissions were observed even in the ...
Feng Mao, Jin Hong, Han Wang, Ye Chen, Chengbin Jing, Pingxiong Yang, Jens W. Tomm, Junhao Chu, Fangyu Yue   +8 more
doaj   +1 more source

Evaluation of Health Indicators and the Quality of Used Frying Oils in Fast Food Restaurants of Mashhad in 2018

Journal of Environmental Health and Sustainable Development, 2020
Introduction: Recently, changes in people's lifestyles and new eating habits have diminished the importance of main dishes and have led to increasing the consumption of fast foods.
Zohreh Rahnama Bargard, Hossien Alidadi, Monavvar Afzal Aghaee, Mahnaz Kharghani, Mahsa Mahjoubizadeh, Fatemeh Kariminejad   +5 more
doaj  

Candidate ferroelectrics via ab initio high-throughput screening of polar materials

npj Computational Materials
Ferroelectrics are a class of polar and switchable functional materials with diverse applications, from microelectronics to energy conversion. Computational searches for new ferroelectric materials have been constrained by accurate prediction of the ...
Francesco Ricci, S. Reyes-Lillo, S. Mack, J. Neaton   +3 more
semanticscholar   +1 more source

Evolution of cation ordering and crystal defects controlled by Zn substitutions in Cu2SnS3 ceramics

AIP Advances, 2018
The microstructures of a series of Cu2ZnxSn1-xS3 (x = 0, 0.05, 0.10, 0.15,0.20) ceramic samples are investigated by a combination of selected area electron diffraction (SAED), high-resolution transmission electron microscopy (HRTEM), high-angle annular ...
Chao Li, Haili Song, Yawei Shen, Yifeng Wang, Yan Cheng, Ruijuan Qi, Shiyou Chen, Chungang Duan, Rong Huang   +8 more
doaj   +1 more source

Design and evaluation of conjugated polymers with polar side chains as electrode materials for electrochemical energy storage in aqueous electrolytes [PDF]

Energy & Environmental Science, 2019
Solution processable p-type and n-type conjugated polymers with polar side chains enable fast charging in aqueous electrolytes and 1.4 V cell voltage.
Davide Moia, Alexander Giovannitti, A. Szumska, Iuliana P. Maria, E. Rezasoltani, Michael Sachs, Martin Schnurr, Piers R. F. Barnes, I. McCulloch, J. Nelson   +9 more
semanticscholar   +1 more source

Evaluation of the Utility of Baseline Echocardiogram in Patients With Standard Risk Precursor B‐Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
Abstract Background A routine baseline echocardiogram is often obtained prior to anthracycline administration in children with cancer. The utility of baseline echocardiogram is unclear in patients with standard risk B‐cell acute lymphoblastic leukemia (SR B‐ALL) as their anthracycline cumulative dose is low.
Ziyad Alrajhi, Alice Pozza, Luc Mertens, Adam Paul Yan, Sarah Alexander   +4 more
wiley   +1 more source

Microstructure of Cu2S nanoprecipitates and its effect on electrical and thermal properties in thermoelectric Cu2Zn0.2Sn0.8S3 ceramics

AIP Advances, 2018
The microstructures of Cu2Zn0.2Sn0.8S3 ceramics with high electrical conductivity and low thermal conductivity were investigated by a combination of selected area electron diffraction, high-resolution transmission electron microscopy, X-ray energy ...
Chao Li, Yawei Shen, Haili Song, Yifeng Wang, Shiyou Chen, Ruijuan Qi, Yan Cheng, Chun-Gang Duan, Rong Huang   +8 more
doaj   +1 more source