Zobrazeno 1 - 10
of 225
pro vyhledávání: '"Sambandamurthy G"'
Negative differential resistance (NDR) behavior observed in several transition metal oxides is crucial for developing next-generation memory devices and neuromorphic computing systems. NbO2-based memristors exhibit two regions of NDR at room temperat
Externí odkaz:
http://arxiv.org/abs/2411.06605
Autor:
Singh, Sujay, Horrocks, Gregory, Marley, Peter M, Shi, Zhenzhong, Banerjee, Sarbajit, Sambandamurthy, G.
Publikováno v:
Phys. Rev. B 92, 155121 (2015)
We discuss the mechanisms behind the electrically driven insulator-metal transition in single crystalline VO$_2$ nanobeams. Our DC and AC transport measurements and the versatile harmonic analysis method employed show that non-uniform Joule heating c
Externí odkaz:
http://arxiv.org/abs/1503.01003
Electrical transport and broadband resistance noise measurements in an ultra low frequency window (30 mHz - 8 Hz) are carried out in single nanoribbon devices of charge density wave (CDW) conductor NbSe$_{3}$. In the temperature and electric field ra
Externí odkaz:
http://arxiv.org/abs/1410.8428
Autor:
Stabile, Adam A., Singh, Sujay K., Wu, Tai-lung, Whittaker, Luisa, Banerjee, Sarbajit, Sambandamurthy, G.
Publikováno v:
Appl. Phys. Lett. 107, 013503 (2015)
We present results from an experimental study of the equilibrium and non-equilibrium transport properties of vanadium oxide nanobeams near the metal-insulator transition (MIT). Application of a large electric field in the insulating phase across the
Externí odkaz:
http://arxiv.org/abs/1401.4129
Publikováno v:
Phys. Rev. Lett. 111, 067003 (2013)
We investigate the field tuned quantum phase transition in a 2D low-disorder amorphous InO$_x$ film in the frequency range of 0.05 to 16 GHz employing microwave spectroscopy. In the zero temperature limit, the AC data are consistent with a scenario w
Externí odkaz:
http://arxiv.org/abs/1209.2965
Autor:
Stabile, Adam A., Whittaker, Luisa, Wu, Tai Lung, Marley, Peter, Banerjee, Sarbajit, Sambandamurthy, G.
Publikováno v:
Nanotechnology 22, 485201 (2011)
NbSe3 exhibits remarkable anisotropy in most of its physical properties and has been a model system for studies of quasi-one-dimensional charge-density-wave (CDW) phenomena. Herein, we report the synthesis, characterization, and electrical transport
Externí odkaz:
http://arxiv.org/abs/1112.0039
Autor:
Sambandamurthy, G., Armitage, N. Peter
DC and finite frequency transport measurements of thin films of amorphous indium oxide that were driven through the critical point of superconductor-insulator transition by the application of perpendicular magnetic field are presented. The observatio
Externí odkaz:
http://arxiv.org/abs/1109.4087
Publikováno v:
Physical Review B 83, 073101 (2011)
Results from transport measurements in individual $W_{x}V_{1-x}O_{2}$ nanowires with varying extents of $W$ doping are presented. An abrupt thermally driven metal-insulator transition (MIT) is observed in these wires and the transition temperature de
Externí odkaz:
http://arxiv.org/abs/1012.2582
Publikováno v:
Phys. Rev. B 84, 024511 (2011)
We report a comprehensive study of the complex AC conductance of amorphous superconducting InO$_x$ thin films. Using a novel broadband microwave `Corbino' spectrometer we measure the explicit frequency dependency of the complex conductance and the ph
Externí odkaz:
http://arxiv.org/abs/1010.2996
Autor:
Zhu, Han, Sambandamurthy, G., Chen, Yong P., Jiang, Pei-Hsun, Engel, Lloyd, Tsui, D. C., Pfeiffer, L. N., West, K. W.
Microwave pinning-mode resonances found around integer quantum Hall effects, are a signature of crystallized quasiparticles or holes. Application of in-plane magnetic field to these crystals, increasing the Zeeman energy, has negligible effect on the
Externí odkaz:
http://arxiv.org/abs/0907.5218