Results 51 to 60 of about 28,163 (235)

Superconducting phase diagram of H3S under high magnetic fields

Nature Communications, 2019
The discovery of over 200 K superconductivity excites the community to search for room temperature superconductivity. Here, Mozaffari et al. report the temperature dependence of the upper critical fields of superconducting H3S under a record-high ...
Shirin Mozaffari, Dan Sun, Vasily S. Minkov, Alexander P. Drozdov, Dmitry Knyazev, Jonathan B. Betts, Mari Einaga, Katsuya Shimizu, Mikhail I. Eremets, Luis Balicas, Fedor F. Balakirev   +10 more
doaj   +1 more source

Generating Unconventional Spin‐Orbit Torques With Patterned Phase Gradients in Tungsten Thin Films

Advanced Materials, EarlyView.
ABSTRACT A key aim in spintronics is to achieve current‐induced magnetization switching via spin‐orbit torques without external magnetic fields. For this, the focus of recent work has been on introducing controlled lateral gradients across ferromagnet/heavy‐metal devices, giving variations in thickness, composition, or interface quality.
Lauren J. Riddiford, Anne Flechsig, Shilei Ding, Emir Karadža, Niklas Kercher, Tobias Goldenberger, Elisabeth Müller, Pietro Gambardella, Laura J. Heyderman, Aleš Hrabec   +9 more
wiley   +1 more source

Sr2IrO4: Gateway to cuprate superconductivity?

APL Materials, 2015
High temperature superconductivity in cuprates remains a defining challenge in condensed matter physics. Recently, a new set of related compounds based on Ir rather than Cu has been discovered that may be on the verge of superconductivity themselves or ...
J. F. Mitchell
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Assessing the feasibility of near-ambient conditions superconductivity in the Lu-N-H system

Communications Materials
The report of near-ambient superconductivity in nitrogen-doped lutetium hydrides (Lu-N-H) has generated a great interest. However, conflicting results raised doubts regarding superconductivity.
Yue-Wen Fang, Đorđe Dangić, Ion Errea
doaj   +1 more source

Room-Temperature Superconductivity in Yb/Lu Substituted Clathrate Hexahydrides under Moderate Pressure

Research, 2022
Room temperature superconductivity is a dream that mankind has been chasing for a century. In recent years, the synthesis of H3S, LaH10, and C-S-H compounds under high pressures has gradually made that dream become a reality.
Mingyang Du, Hao Song, Zihan Zhang, Defang Duan, Tian Cui   +4 more
doaj   +1 more source

Tunable Negative Thermal Expansion in Fe/Cr‐Substituted Nd2Co17 Compounds via Magnetoelastic Coupling

Advanced Science, EarlyView.
This study achieves anisotropic thermal expansion tuning in Nd2(Co1‐xFex)17‐yCry compounds via a magnetoelastic strategy. Variable‐temperature synchrotron X‐ray diffraction reveals that increased Fe content induces switchable lattice responses. Compositional control reduces the volume expansion coefficient αV by 20% (x═0.7) and modulates TC (442–625 K),
Jiayuan Li, Chenfei Qv, Haoran Tu, Qinfen Gu, Wayne D. Hutchison, Stewart J. Campbell, Zhenxiang Cheng, Wenquan Wang, Jianli Wang   +8 more
wiley   +1 more source

Theoretical and experimental considerations of the critical current density of DI-BiSCCO superconducting tapes as a function of magnetic field, field orientation, temperature and strain [PDF]

, 2013
The critical current density (Jc) of DI-BiSCCO superconducting tapes was measured as a function of magnetic field (B), field orientation (θ), temperature (T) and strain (e) in a 15 T split-pair horizontal superconducting magnet using probes designed and ...
SUNWONG, PRAPAIWAN
core  

The Needle in the Haystack for Theory of High Temperature Superconductivity: Negative Nuclear Magnetic Moments

, 2018
This work outlines a theory for explaining high temperature superconductivity on the basis of relativistic scattering of Cooper pairs via beyond room temperature conditions causing high energy relativistic scattering of Cooper pairs with nuclei having ...
Reginald, Little, Reginald Little (5621501)   +1 more
core   +1 more source

Experimental clathrate superhydrides EuH_{6} and EuH_{9} at extreme pressure conditions

Physical Review Research, 2021
The recent discovery of a class of sodalitelike clathrate superhydrides (e.g., YH_{6}, YH_{9}, ThH_{9}, ThH_{10}, and LaH_{10}) at extreme pressures, which commonly exhibit high-temperature superconductivity with the highest T_{c} approaching 260 K for ...
Liang Ma, Mi Zhou, Yingying Wang, Saori Kawaguchi, Yasuo Ohishi, Feng Peng, Hanyu Liu, Guangtao Liu, Hongbo Wang, Yanming Ma   +9 more
doaj   +1 more source