Results 101 to 110 of about 232,000 (280)

The H2 velocity structure of inner knots in HH 212: asymmetries and rotation

open access: yes, 2009
High-resolution R~50 000 long-slit spectroscopy of the inner knots of the highly symmetrical protostellar outflow HH 212 was obtained in the 1-0 S(1) line of H2 at 2.12 micron with a spatial resolution of ~0.45 arcsec.
Andrews   +75 more
core   +2 more sources

Low‐Energy, Ultrafast Spin Reorientation at Competing Hybrid Interfaces with Tunable Operating Temperature

open access: yesAdvanced Materials, EarlyView.
A spin reorientation transition is generated at hybrid interfaces of Pt‐Co‐organic molecules in the vicinity of room temperature. This spin reorientation transition happens at an ultrafast scale and is controlled either through electrical current or fs laser pulse, introducing perpendicular magnetic anisotropy in formerly planar magnetised samples ...
Servet Ozdemir   +14 more
wiley   +1 more source

The Origin and Significance of the Twenty-Four Solar Terms in China

open access: yesContemporary Social Sciences, 2017
The “Twenty-Four Solar Terms” is an integrated knowledge system and functional social practice initiated and developed by ancient Chinese. Appling to their daily lives and agricultural production, based on records of the periodic motions of the sun ...
Xu Wangsheng
doaj   +1 more source

All‐Heat Control of Magnetization Dynamics on Van der Waals Magnets

open access: yesAdvanced Materials, EarlyView.
Heat dissipation in nanomagnetic devices mediated by femtosecond laser excitation constitutes one of the pressing challenges toward energy‐efficient information communication technologies. Here it is shown that heat and magnetization play together to determine the ultrafast spin dynamics of van der Waals magnets across any substrates and magnet ...
Sumit Haldar   +3 more
wiley   +1 more source

Rare‐Earth Ion Intercalation in Graphene via Thermal and Electrostatic Control

open access: yesAdvanced Materials, EarlyView.
Europium ions reversibly intercalate into the van der Waals gap of bilayer graphene when heat and electrostatic gate act together, switching the stacking order and electronic response on demand. Real‐time transport, simulations, and device tests expose a hidden 2D Eu sheet and its temperature‐tuned diffusion, showing a versatile electrochemical route ...
Mengjie Feng   +11 more
wiley   +1 more source

An Empirical Study On Imaging Sensitivity Of SKA1-LOW Based on Point Source Sensitivity

open access: yesThe Astronomical Journal
The Square Kilometre Array (SKA) radio telescope will achieve unparalleled sensitivity and angular resolution, substantially progressing our research into the formation and development of the early universe.
Zhaotong Xie   +4 more
doaj   +1 more source

Impact of the initial disk mass function on the disk fraction

open access: yes, 2015
The disk fraction, the percentage of stars with disks in a young cluster, is widely used to investigate the lifetime of the protoplanetary disk, which can impose an important constraint on the planet formation mechanism.
Ohsawa, Ryou   +2 more
core   +1 more source

Coexisting Non‐Trivial Van der Waals Magnetic Orders Enable Field‐Free Spin‐Orbit Torque Magnetization Dynamics

open access: yesAdvanced Materials, EarlyView.
The coexistence of ferromagnetic and antiferromagnetic orders in van der Waals magnet above room temperature, inducing an intrinsic exchange bias and canted perpendicular magnetism is discovered. Such non‐trivial intrinsic magnetic order enables the realization of energy‐efficient and magnetic field‐free spin‐orbit torque memory devices.
Bing Zhao   +8 more
wiley   +1 more source

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