Results 41 to 50 of about 23,150 (306)

Raman Study of Neutron Irradiated GaAs [PDF]

, 1985
Raman scattering with near band gap excitation has been used to study fast neutron damaged GaAs. In addition to disorder activated first order scattering from zone edge acoustic phonons we observe a new peak that is attributed to a resonant mode associated with an intrinsic defect of GaAs, an As vacancy being the most likely candidate.
Berg, R.S., Yu, P.Y., Weber, E.R.
openaire   +2 more sources

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

Advanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen, Roger Guzman, Xiaomin Jia, Jialu Wu, Xing Xu, Li Sun, Jinbo Pan, Shixuan Du, Myung‐Hwan Whangbo, Wu Zhou, Jing Ma, Ce‐wen Nan, Chonglin Chen   +12 more
wiley   +1 more source

Micromagnetic Characterization of Operation-Induced Damage in Charpy Specimens of RPV Steels

Applied Sciences, 2021
The embrittlement of two types of nuclear pressure vessel steel, 15Kh2NMFA and A508 Cl.2, was studied using two different methods of magnetic nondestructive testing: micromagnetic multiparameter microstructure and stress analysis (3MA-X8) and magnetic ...
Madalina Rabung, Melanie Kopp, Antal Gasparics, Gábor Vértesy, Ildikó Szenthe, Inge Uytdenhouwen, Klaus Szielasko   +6 more
doaj   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

Advanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source

In-situ observation and atomic resolution imaging of the ion irradiation induced amorphisation of graphene

, 2014
Ion irradiation has been observed to induce a macroscopic flattening and in-plane shrinkage of graphene sheets without a complete loss of crystallinity.
Greaves, Graeme, Haigh, S. J., Bangert, U., Haigh, S. J.; id_orcid, Ramasse, Quentin Mathieu, Donnelly, S. E., Hinks, J. A., Ramasse, Q. M., Pan, C. T., Greaves, G., Pan, C.-T.   +10 more
core   +1 more source

A Link between Neutron and Ion Irradiation Hardening for Stainless Austenitic and Ferritic-Martensitic Steels

Metals
Radiation hardening is studied for stainless austenitic and ferritic-martensitic chromium steels after ion and neutron irradiation at various temperatures. Austenitic and ferritic-martensitic steels irradiated up to 30 dpa in various nuclear reactors and
Boris Margolin, Alexander Sorokin, Lyubov Belyaeva   +2 more
doaj   +1 more source

On the Modelling of Thermal Aging through Neutron Irradiation and Annealing

Advances in Materials Science and Engineering, 2018
A new method predicting long-term thermal embrittlement of steel caused by P segregation is verified. The method is based on the results of impact strength or fracture toughness tests using specimens after relatively short-term neutron irradiation ...
Boris Margolin, Elena Yurchenko, Vera Potapova, Valery Pechenkin   +3 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

Displacement Damage Effects in Pinned Photodiode CMOS Image Sensors [PDF]

, 2012
This paper investigates the effects of displacement damage in Pinned Photodiode (PPD) CMOS Image Sensors (CIS) using proton and neutron irradiations. The DDD ranges from 12 TeV/g to ${1.2 times 10^{6}}$ TeV/g.
Bardoux, A., Goiffon, Vincent, Corbière, Franck, Bardoux, Alain, Virmontois, Cédric, Goiffon, V., Girard, Sylvain, Corbiere, F., Magnan, Pierre, Magnan, P.   +9 more
core   +1 more source

Effect of neutron irradiation on neat epoxy resin stability in shielding applications

Science and Engineering of Composite Materials, 2018
Epoxy resin is a thermoset polymer and is one of the main candidates for radiation shielding application. In this investigation, carbon, hydrogen, and nitrogen analysis showed that the presence of the light element of nitrogen in cured epoxy could lead ...
Adeli Ruhollah, Shirmardi Seyed Pezhman, Abbasi Hassan, Ahmadi Seyed Javad   +3 more
doaj   +1 more source