magnetic transport
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2021 ◽  
Vol 539 ◽  
pp. 168352
Author(s):  
Rabin Mahat ◽  
Shambhu KC ◽  
Upama Karki ◽  
Sudhir Regmi ◽  
Jia Yan Law ◽  
...  




2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Panpan Kong ◽  
Vasily S. Minkov ◽  
Mikhail A. Kuzovnikov ◽  
Alexander P. Drozdov ◽  
Stanislav P. Besedin ◽  
...  

AbstractThe discovery of superconducting H3S with a critical temperature Tc∼200 K opened a door to room temperature superconductivity and stimulated further extensive studies of hydrogen-rich compounds stabilized by high pressure. Here, we report a comprehensive study of the yttrium-hydrogen system with the highest predicted Tcs among binary compounds and discuss the contradictions between different theoretical calculations and experimental data. We synthesized yttrium hydrides with the compositions of YH3, YH4, YH6 and YH9 in a diamond anvil cell and studied their crystal structures, electrical and magnetic transport properties, and isotopic effects. We found superconductivity in the Im-3m YH6 and P63/mmc YH9 phases with maximal Tcs of ∼220 K at 183 GPa and ∼243 K at 201 GPa, respectively. Fm-3m YH10 with the highest predicted Tc > 300 K was not observed in our experiments, and instead, YH9 was found to be the hydrogen-richest yttrium hydride in the studied pressure and temperature range up to record 410 GPa and 2250 K.



2021 ◽  
Vol 34 (4) ◽  
pp. 04021026
Author(s):  
Hiroyuki Kawamoto ◽  
Rieko Egawa


Author(s):  
Kodolov VI ◽  
Kodolova-Chukhontseva VV ◽  
Shabanova IN ◽  
Terebova NS

The paper is dedicated to the consideration of the metal-carbon mesocomposites application possibilities for the medicine magnetic transport. This trend is determined by correspondent peculiarities of content and structure of mesoscopic composites. The main peculiarities of these nanosized particles are the following: a) the presence of unpaired electrons on the carbon shell; b) the structure of carbon shell from poly acetylene and carbine fragments; c) the atomic magnetic moment of inner metal is equaled to more than 1–3 μB. The creation of reactive mesoscopic materials with regulated magnetic characteristics which can find application as medicine magnetic transport within an organism is very topical. The present investigation has fundamental character. It’s based on the ideas concerning to the change of metal-carbon mesocomposites reactivity. The use is possible as metal-carbon mesocomposites both and they are modified analogously.



Author(s):  
Xiaxin Ding ◽  
Tiankai Yao ◽  
Lyuwen Fu ◽  
Zilong Hua ◽  
Jason Harp ◽  
...  


2020 ◽  
Vol 121 (9) ◽  
pp. 894-898
Author(s):  
Yu. V. Kaletina ◽  
E. G. Gerasimov ◽  
P. B. Terentev ◽  
A. Yu. Kaletin


2020 ◽  
Vol 30 (3) ◽  
Author(s):  
Nguyen Anh Tuan

The magnetic transport properties -- magnetoresistive (MR) effects of MnNi/Co/Ag(Cu)/\break Py pinned spin valve structures (SVs) prepared by rf sputtering method and annealed at \(T_{a} = 100\)°C - 500°C for 30 minutes in high vacuum (\(\sim 10^{ - 5}\) torr) are investigated. The received results show a change in the observed MR behaviors from a normal giant magnetoresistance effect to an inverse magnetoresistance effect after annealing at high temperatures, 300°C and 400°C, for these SVs. The origin and mechanism of the IMR behavior are analyzed and discussed. These results will suggest an ability to manufacture SV devices used the IMR effect for enhancing the application capacities for SV-sensor systems.



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