Fig. 5: CDW suppression by magnetic field in the normal state of UTe2 and field sensitivity of spatial inhomogeneity. | Nature Communications

Fig. 5: CDW suppression by magnetic field in the normal state of UTe2 and field sensitivity of spatial inhomogeneity.

From: Inhomogeneous high temperature melting and decoupling of charge density waves in spin-triplet superconductor UTe2

Fig. 5

a Schematic of the magnetic field direction applied at 3 degrees with respect to the direction perpendicular to the sample surface imaged by STM. This small misalignment is due to accidental sample tilt during the gluing process, and it is determined from the background slope in raw STM topographs. b STM topograph of the region of the sample where the data were taken. c, d Fourier transform (FT) linecuts from the center of the dI/dV map FT through (c) q1CDW and (d) q3CDW peaks as a function of magnetic field. Sensitivity of the peak heights to large magnetic fields is observed. (e, f) Peak heights extracted from (c, d) plotted as a function of magnetic field. g Fourier filtered dI/dV maps including only the q1CDW peak (encompassing a 9 pixel diameter around the peak center), and (h) associated amplitude maps. i Approximate temperature vs magnetic field schematic phase diagram of density waves in UTe2. Here, “3Q CDW” refers to the charge density wave phase which includes all 3 directions: q1CDW, q2CDW, and q3CDW. “PDW” refers to the pair density wave phase. STM setup condition: Vsample = −50 mV, Iset = 300 pA, Vexc = 10 mV. Data were taken at 4.8 K.

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