Fig. 4: Little–Parks oscillations in the presence of an in-plane magnetic field.
From: The observation of π-shifts in the Little-Parks effect in 4Hb-TaS2
a Same ring as in Fig. 2a, measured in the presence of a 360 Oe in-plane magnetic field. The background has a “Mexican-hat” shape in this case, with minima at about ±80 Oe. b Resistance as a function of the out-of-plane field with the 360 Oe in-plane applied at a higher temperature of 2.66 K where the oscillations are absent. The parabolic background found in the absence of the in-plane field, as shown in Fig. 2c, is recovered. c Little–Parks oscillations in a π-ring without in-plane field. d Same π-ring measured in the presence of a 470 Oe in-plane magnetic field. In this case, the background has a minima at about ±150 Oe. e Theoretical calculation of ΔTc/Tc for an annular ring with similar dimensions and a two-component order parameter. The magnetic field couples to the two-component order parameter linearly and causes the emergence of two maxima. For more details, see Supplementary material.
