Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Kaviraj B"'
We have implemented a new experimental set-up for precise measurements of current fluctuations in three-terminal devices. The system operates at very low temperatures (30 mK) and is equipped with three SQUIDs as low noise current amplifiers. A SQUID
Externí odkaz:
http://arxiv.org/abs/1210.6806
Publikováno v:
PRL 107 (2011) 077005
We present measurements of current noise and cross-correlations in three-terminal Superconductor-Normal metal-Superconductor (S-N-S) nanostructures that are potential solid-state entanglers thanks to Andreev reflections at the N-S interfaces. The noi
Externí odkaz:
http://arxiv.org/abs/1104.4211
Autor:
Kaviraj, B., Alves, F.
The resistive and reactive components of magneto-impedance (MI) for Finemet/Copper/Finemet sandwiched structures based on stress-annealed nanocrystalline Fe75Si15B6Cu1Nb3 ribbons as functions of different fields (longitudinal and perpendicular) and f
Externí odkaz:
http://arxiv.org/abs/0707.4229
Publikováno v:
Solid-State Sensors, Actuators and Microsystems Conference, Vol 2 (2007) pp 2581-2584
We have selected stress-annealed nanocrystalline Fe-based ribbons for ferromagnetic/copper/ferromagnetic sensors exhibiting high magneto-impedance ratio. Longitudinal magneto-impedance reaches 400% at 60 kHz and longitudinal magneto-resistance increa
Externí odkaz:
http://arxiv.org/abs/0707.4232
Autor:
Kaviraj, B., Ghatak, S. K.
Systematic measurements of stress-impedance (SI) have been carried out using Co-rich amorphous ribbons of nominal composition Co71-xFexCr7Si8B14 (x = 0, 2) at various excitation frequencies and bias fields and at room temperature. The impedance, Z fo
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608487
Autor:
Kaviraj, B., Ghatak, S. K.
Publikováno v:
Journal of Non-Crystalline Solids 353 (2007) 1515-1520
A theoretical study of stress-impedance effect based on the solution of Landau-Lifsitz-Gilbert equation has been carried out. The results show that stress impedance effects depend largely on several extrinsic (external bias field, external frequency)
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608488
Autor:
Kaviraj, B., Ghatak, S. K.
Magneto-impedance (MI) effects have been observed for amorphous Fe73.5Nb3Cu1Si13.5B9 ribbon which has been excited by an a.c. magnetic field parallel to the length of the ribbon. Maximum relative change in MI as large as -99% was observed which has n
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606205
Autor:
Kaviraj, B., Ghatak, S. K.
Publikováno v:
Ind. J. Phy., Volume 79, (2005)
Magneto-impedance (MI) of soft ferromagnetic materials is a sensitive function of the amplitude and frequency of exciting a.c magnetic field. MI (Z) of amorphous ferromagnetic ribbon of nominal composition Fe73.5Nb3 Cu1 Si13.5 B9 is measured at diffe
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604442
Autor:
Kaviraj, B., Ghatak, S. K.
Systematic measurements of stress impedance (SI) and magneto-impedance (MI) have been carried out using Co-rich amorphous ribbons of nominal composition Co71-xFexCr7Si8B14 (x = 0, 2) at various excitation frequencies and bias fields and at room tempe
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604438
Autor:
Kaviraj, B., Ghatak, S. K
Publikováno v:
Solid State Comm., Vol-140, (2006), pp 294-298
The resistive and reactive components of magneto-impedance was studied for the as-quenched and microwave annealed amorphous Fe73.5Nb3Cu1Si13.5B9 ribbon as a function of biasing d.c magnetic fields (-60 to +60 Oe) and excitation frequencies (0.1, 1, 1
Externí odkaz:
http://arxiv.org/abs/cond-mat/0604383