Utpal Dutta

7 Questions 8 Answers 0 Followers

Questions related from Utpal Dutta

How to confirm the spin triplet superconductivity for multiband superconductor (with positive curvature in Hc2 – T curve)?

For a superconductor with a negative curvature in Hc2 Vs T plot we can fit the data by Werthamer–Helfand–Hohenberg (WHH) theory for spin singlet state. For a deviation from the standard spin...

29 September 2017 8,241 1 View

How to fit the experimentally Hc2 data with WHH model curve?

I have Hc2 Vs. T data. From the data I have calculated the reduced field (h*) and reduced temperature (t) and plotted h* as a function of t. Now I want to fit this data with WHH theory. How to...

22 September 2017 3,744 5 View

How to differentiate the chiral anomaly induced negative Linear magnetoresistance (NLMR) phenomena in a Weyl semimetal with the others NLMR phenomena?

We know that some of the Weyl semimetals show negative magnetoresistance in presence of parallel electric and magnetic fields, which is indicative of the chiral anomaly due to Weyl fermions. But...

14 April 2017 10,030 4 View

Does the suppression of Kondo effect depend on the magnetic field direction?

We know that the Kondo effect is a resistivity minimum phenomena which results from the magnetic impurity. If we measure both the longitudinal and transverse magnetoresistance then what should...

13 April 2017 2,769 2 View

Is the Allen-Dynes-modified McMillan formalism applicable to estimate the superconducting transition temperature for an anisotropic system?

We know that Allen-Dynes-modified McMillan formula is model dependent formula, where the model describes only real materials which satisfy 4 approximations. The isotropic approximation is one of...

11 April 2017 9,578 3 View

How the non-Fermi-liquid behaviour is confirmed by resistivity measurement ?

If the magnetic susceptibility of a system diverges slower than ∼1/T for T → 0, and that it does not converge to any finite value at zero temperature then one can conclude about the...

12 January 2017 7,171 2 View

What kind of polynomial background is subtracted from the magnetoresistance data ( ρ(B)) to obtain the amplitude of the SdH oscillations?

I have resistivity data, ρ(B), at some fixed temperatures. To obtain the oscillatory part, ρosc, I have to subtract a background from ρ(B). For getting the background, one need to fit the ρ(B)...

14 December 2016 5,863 2 View