Results 31 to 40 of about 160,665 (306)

Quantum criticality in twisted transition metal dichalcogenides [PDF]

Nature, 2021
Abstract In moiré heterostructures, gate-tunable insulating phases driven by electronic correlations have been recently discovered. Here, we use transport measurements to characterize the gate-driven metal-insulator transitions and the metallic phase in twisted WSe2 near half filling of the first moiré subband.
Augusto Ghiotto, En-Min Shih, Giancarlo S. S. G. Pereira, Daniel A. Rhodes, Bumho Kim, Jiawei Zang, Andrew J. Millis, Kenji Watanabe, Takashi Taniguchi, James C. Hone, Lei Wang, Cory R. Dean, Abhay N. Pasupathy   +12 more
openaire   +4 more sources

Temperature Dependence of Phonons in Elemental Cubic Metals Studied by Inelastic Scattering of Neutrons and X-Rays [PDF]

, 2009
The vibrations of atoms in a crystal (phonons) make up the majority of its entropy (or heat capacity), and these vibrations are typically modeled by simple harmonic oscillators.
Kresch, Max G.
core   +2 more sources

Effect of Melt Superheating Treatment on the Microstructures and Purity of a Directionally Solidified Superalloy

Crystals, 2023
In this paper, the effects and the mechanisms of melt superheating treatment (MST) on a directionally solidified alloy were investigated. The mass loss rate of the superalloy becomes severe as the MST temperature rises.
Yi Li, Qifei Zhang, Xiaogang You, Jianbing Qiang   +3 more
doaj   +1 more source

Quantum valence criticality in a correlated metal

Science Advances, 2018
We discover the experimental case of a quantum valence criticality leading to the breakdown of the Fermi liquid state.
Kentaro Kuga, Yosuke Matsumoto, Mario Okawa, Shintaro Suzuki, Takahiro Tomita, Keita Sone, Yasuyuki Shimura, Toshiro Sakakibara, Daisuke Nishio-Hamane, Yoshitomo Karaki, Yasutaka Takata, Masaharu Matsunami, Ritsuko Eguchi, Munetaka Taguchi, Ashish Chainani, Shik Shin, Kenji Tamasaku, Yoshinori Nishino, Makina Yabashi, Tetsuya Ishikawa, Satoru Nakatsuji   +20 more
openaire   +3 more sources

Effects and Mechanism of Four Low Molecular Organic Regulators on Dispersion Behavior of Fine Lepidolite Particles

Kuangchan zonghe liyong
The effects and mechanism of four organic low molecular regulators tannic acid, oxalic acid, tartaric acid and citric acid on dispersion behavior of fine lepidolite were studied.
Yuefeng DUAN, Xu ZHANG, Yan ZHENG, Guangli ZHU, Yijun CAO   +4 more
doaj   +1 more source

The Extraction and Separation of Scarce Critical Metals: A Review of Gallium, Indium and Germanium Extraction and Separation from Solid Wastes

Separations
Gallium (Ga), indium (In), and germanium (Ge) play an important role in the modern high-tech material field. Due to their low content and scattered distribution in the crust, and the increasing demand for these metals in recent years, their supply risks ...
Yanfang Huang, Meimei Wang, Bingbing Liu, Shengpeng Su, Hu Sun, Shuzhen Yang, Guihong Han   +6 more
doaj   +1 more source

Heavy metal bioavailability and bioaccessibility in soil [PDF]

, 2009
This chapter considers the use of a variety of approaches to assess either the bioavailability or the bioaccessibility of metals in soil. The bioavailability of metals from soils is considered with respect to a series of single-extraction methods ...
Dean, John, John Richard Dean
core   +1 more source

Thermal properties of high-entropy RE-disilicates controlled by high throughput composition design and optimization

Materials & Design, 2023
The configuration entropy was manipulated by introducing atoms with unique properties using the high throughput calculations, and five new disilicates with ideal properties which have lower thermal conductivity and controllable thermal expansion ...
Yuhan Wang, Jinpeng Zhu, Mingliang Li, Gang Shao, Hailong Wang, Rui Zhang   +5 more
doaj   +1 more source

Responsible sourcing of critical metals (abstract) [PDF]

, 2017
We use a wider range of specialist raw materials in our manufactured goods than ever before. Many of these are mined in just small quantities, of tens to thousands of tons per year, and that means that a small number of mines is sufficient to satisfy ...
R Pell (16124759), F Wall (21833363)
core   +3 more sources

Leaching behavior of germanium from germanium-rich lignite: A further comprehension of its occurrence state

Fuel Processing Technology
Germanium, a critical metal used in many strategy fields, is widely acknowledged as organic affinity. Germanium is main occurred in the humus of lignite, but its exact occurrence state remains unclear. In this work, various methods were employed to leach
Zhiyuan Zhang, Yanyan Xu, Guixia Fan, Yingrui Jin, Daoguang Teng, Guosheng Li, Peng Li, Yijun Cao   +7 more
doaj   +1 more source