Room temperature p-orbital magnetism in carbon chains and the role of group IV, V, VI, and VII dopants

Nanoscale ◽  
2018 ◽  
Vol 10 (23) ◽  
pp. 11186-11195 ◽  
Author(s):  
C. H. Wong ◽  
E. A. Buntov ◽  
A. F. Zatsepin ◽  
J. Lyu ◽  
R. Lortz ◽  
...  
Keyword(s):  
Rare Earth ◽  
Transition Metals ◽  
Room Temperature ◽  
Group Iv ◽  
Rare Earth Ions ◽  
Next Generation ◽  
Spintronic Devices ◽  
Carbon Chains ◽  
Orbital Magnetism

The study of magnetism without the involvement of transition metals or rare earth ions is considered the key to the fabrication of next-generation spintronic devices.

Conduction Electron Contributions to the Crystalline Electric Fields in Transition Metals

1974 ◽  
Vol 52 (11) ◽  
pp. 985-988 ◽  
Author(s):  
A. Ludwig ◽  
R. A. B. Devine
Keyword(s):  
Rare Earth ◽  
Transition Metals ◽  
Noble Metal ◽  
Electric Fields ◽  
Conduction Electron ◽  
Point Charge ◽  
Rare Earth Ions ◽  
Negative Point ◽  
Tentative Explanation ◽  
Crystalline Electric Fields

We discuss the origin of the crystalline electric fields for rare earth ions in transition and noble metal hosts, in terms of the band character of the host material and of localization and delocalization of 5d electrons on the rare earth ions. A tentative explanation is given for the almost pure negative point charge character found in Pd and Pt.

scholarly journals Dynamic transition of current-driven single-skyrmion motion in a room-temperature chiral-lattice magnet

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Licong Peng ◽  
Kosuke Karube ◽  
Yasujiro Taguchi ◽  
Naoto Nagaosa ◽  
Yoshinori Tokura ◽  
...  
Keyword(s):  
Electric Current ◽  
Motion Tracking ◽  
Room Temperature ◽  
Dynamic Transition ◽  
Spintronic Devices ◽  
Transmission Electron ◽  
Flow Motion ◽  
Lorentz Transmission Electron Microscopy ◽  
And Control

AbstractDriving and controlling single-skyrmion motion promises skyrmion-based spintronic applications. Recently progress has been made in moving skyrmionic bubbles in thin-film heterostructures and low-temperature chiral skyrmions in the FeGe helimagnet by electric current. Here, we report the motion tracking and control of a single skyrmion at room temperature in the chiral-lattice magnet Co9Zn9Mn2 using nanosecond current pulses. We have directly observed that the skyrmion Hall motion reverses its direction upon the reversal of skyrmion topological number using Lorentz transmission electron microscopy. Systematic measurements of the single-skyrmion trace as a function of electric current reveal a dynamic transition from the static pinned state to the linear flow motion via a creep event, in agreement with the theoretical prediction. We have clarified the role of skyrmion pinning and evaluated the intrinsic skyrmion Hall angle and the skyrmion velocity in the course of the dynamic transition. Our results pave a way to skyrmion applications in spintronic devices.

Improved Infrared Emissions of Er3+-Tm3+ Co-Doped Al2O3 Thin Films: The Role of Cross Relaxation Among Rare Earth Ions

2011 ◽  
Vol 11 (12) ◽  
pp. 10673-10676
Author(s):  
Bo Zhou ◽  
Zhisong Xiao ◽  
Lu Yan ◽  
Fang Zhu ◽  
Feng Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Cross Relaxation ◽  
Rare Earth Ions ◽  
Infrared Emissions ◽  
Co Doped

Role of Rare Earth Ions in Anodic Gate Dielectrics for Indium-Zinc-Oxide Thin-Film Transistors

2012 ◽  
Vol 159 (5) ◽  
pp. H502-H506 ◽  
Author(s):  
Dongxiang Luo ◽  
Linfeng Lan ◽  
Miao Xu ◽  
Hua Xu ◽  
Min Li ◽  
...  
Keyword(s):  
Thin Film ◽  
Zinc Oxide ◽  
Rare Earth ◽  
Thin Film Transistors ◽  
Gate Dielectrics ◽  
Rare Earth Ions ◽  
Oxide Thin Film ◽  
Zinc Oxide Thin Film ◽  
Indium Zinc Oxide

Role of rare earth ions in the magnetic, magnetocaloric and magnetoelectric properties of RCrO3 (R = Dy, Nd, Tb, Er) crystals

2016 ◽  
Vol 4 (47) ◽  
pp. 11198-11204 ◽  
Author(s):  
L. H. Yin ◽  
J. Yang ◽  
P. Tong ◽  
X. Luo ◽  
C. B. Park ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Magnetoelectric Effects ◽  
Magnetoelectric Properties

H-induced stair-like metamagnetic transitions, large magnetocaloric and magnetoelectric effects related to the 4f electrons of rare-earth ions were revealed in chromite crystals.

Effects of Rare Earth on the Inclusions and Mechanical Properties of Austenitic Stainless Steel

2013 ◽  
Vol 711 ◽  
pp. 99-102
Author(s):  
Xiao Liu ◽  
Jing Long Liang
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Rare Earth ◽  
Impact Toughness ◽  
Room Temperature ◽  
Transverse Impact ◽  
Dimple Fracture ◽  
Reduction Of Area ◽  
Room Temperature Strength

The effects of rare earth metals on the inclusions and the mechanical properties of 21Cr11Ni austenitic steel were studied by scanning electron microscope (SEM) and energy spectrum analysis. The results show that the morphologies and sizes of inclusions in 21Cr11Ni stainless steel are changed, and rare earth played a very good role of modifying inclusions. The fracture mode of 21Cr11Ni stainless steel is typical cleavage fracture, but quasi-cleavage and dimple fracture after adding RE into the steel. The transverse impact toughness of 21Cr11Ni stainless steel is improved obviously by RE. In comparison with 21Cr11Ni stainless steel without RE, the transverse impact toughness of 21Cr11Ni stainless steel with RE is increased 25.33% at-40°C, and the room temperature strength are improved, the elongation and reduction of area have been improved 9.18%, 12.71% respectively.

Investigations on the Rare Earth Terpyridyl System

1965 ◽  
Vol 20 (6) ◽  
pp. 835-837 ◽  
Author(s):  
Shyama P. Sinha
Keyword(s):  
Rare Earth ◽  
Room Temperature ◽  
Free Ligand ◽  
Ground Level ◽  
Phosphorescence Spectrum ◽  
Rare Earth Ions ◽  
Luminescence Spectra ◽  
Heterocyclic Ligands ◽  
Phosphorescence Lifetime ◽  
Room Temperature Luminescence

The room temperature luminescence spectra of the monoterpyridyl chelates of trivalent samarium, dysprosium and thulium have been studied in solid state by exciting with monochromatic radiation of 3200 Å. The spectra of these chelates show intra f → f fluorescent transitions of the chelated rare earth ions as well as the molecular band fluorescence. The “bottleneck” nature of the energy transfer from the nitrogen containing heterocyclic ligands to the coordinated rare earth ions is proposed. The fluorescence data of mono-terpyridyl chelates have been compared with those of bis-dipyridyl one.The phosphorescence spectrum of terpyridyl has also been investigated. The lowest triplet state of the free ligand is found at 22 940 cm-1 above the ground level. The phosphorescence lifetime of terpyridyl is about 2 sec

Room-temperature luminescence from rare-earth ions implanted into Si nanocrystals

2000 ◽  
Vol 80 (4) ◽  
pp. 719-728 ◽  
Author(s):  
Giorgia Franzó ◽  
Vincenzo Vinciguerra ◽  
Francesco Priolo
Keyword(s):  
Rare Earth ◽  
Room Temperature ◽  
Rare Earth Ions ◽  
Si Nanocrystals ◽  
Room Temperature Luminescence
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