Zobrazeno 1 - 10
of 1 458
pro vyhledávání: '"Dhaka, P."'
We design a full cell configuration having Na$_{3}$V$_{2}$(PO$_{4}$)$_{3}$ as cathode and pre-sodiated hard carbon as an anode with Cellulosic Paper Separators and compare the electrochemical performance of these ceramic-impregnated polymer-coated ce
Externí odkaz:
http://arxiv.org/abs/2409.06743
We present a comprehensive study aimed at elucidating the complex magnetic correlations in Co$_2$TiSi$_{0.5}$Al$_{0.5}$ Heusler alloy having the partial B2-type structure amid L2$_1$ cubic main phase. The thermo-magnetization measurements at 100 Oe r
Externí odkaz:
http://arxiv.org/abs/2408.13081
In this study, we undertake a spectral-timing analysis of the black hole X-ray binary source GRS 1915+105 using simultaneous observations carried out by AstroSat (LAXPC and SXT) and NICER in 2017. The source showed two flux levels (high and low), who
Externí odkaz:
http://arxiv.org/abs/2408.02875
Autor:
Meena, Ramcharan, Dhaka, Rajendra S.
We investigate the dielectric and impedance spectroscopic investigation of Pr-doped NASICON type Na$_{3+x}$Zr$_{2-x}$Pr$_{x}$Si$_2$PO$_{\rm 12}$ ($x=$ 0.05--0.2) samples as a function of temperature and frequency. The Rietveld refinement of x-ray dif
Externí odkaz:
http://arxiv.org/abs/2405.11460
In recent years, the Na-ion SuperIonic CONductor (NASICON) based polyanionics are considered the pertinent cathode materials in sodium-ion batteries due to their 3D open framework, which can accommodate a wide range of Na content and can offer high i
Externí odkaz:
http://arxiv.org/abs/2405.05559
We find an unconventional giant negative exchange bias (EB) of $H_{\rm EB}$ = --14.1~kOe at 2~K (cooling field of 50~kOe) in the cluster spin-glass (CSG) La$_{0.5}$Sr$_{0.5}$Co$_{0.85}$Nb$_{0.15}$O$_3$ perovsikte cobaltites. The magnetic memory effec
Externí odkaz:
http://arxiv.org/abs/2405.05053
Autor:
Pati, Jayashree, Dhaka, Rajendra S.
We report the electrochemical sodium-ion kiinetics and distribution of relaxation time (DRT) analysis of a newly designed mixed polyanionic NaFe$_{1.6}$V$_{0.4}$(PO$_{4}$)(SO$_{4}$)$_{2}$@CNT composite as a cathode. The specific capacity of 104 mAhg$
Externí odkaz:
http://arxiv.org/abs/2404.12822
Autor:
Meena, Ramcharan, Dhaka, Rajendra S.
We investigate the structural, dielectric relaxation, electric modulus and impedance behavior of Ni-doped NASICON ceramic Na$_{3+2x}$Zr$_{2-x}$Ni$_{x}$Si$_2$PO$_{\rm 12}$ ($x=$ 0.05--0.2) prepared using the solid-state reaction method. The increase i
Externí odkaz:
http://arxiv.org/abs/2403.14136
We investigate crystal structure and magnetic properties including spin relaxation and magnetocaloric effect in NASICON type NaFe$_2$PO$_4$(SO$_4$)$_2$ sample. The Rietveld refinement of x-ray and neutron diffraction patterns show a rhombohedral crys
Externí odkaz:
http://arxiv.org/abs/2403.08679
Autor:
Sharma, Madhav, Dhaka, Rajendra S.
The efficient energy storage devices are crucial to meet the soaring global energy demand for sustainable future. Recently, the sodium-ion batteries (SIBs) have emerged as one of the excellent cost effective solution due to the uniform geographical d
Externí odkaz:
http://arxiv.org/abs/2401.15420