Fig. 1: Magnetic field-induced CDW phase switching.
From: Magnetic-field induced dimensionality switch of charge density waves in strained 2H-NbSe2 surface
STM topographic images obtained on the identical 2H-NbSe2 surface (a) before and (b) after the out-of-plain magnetic field application. a Vs = −100 mV, It = 500 pA, 26.4 × 26.4 nm2; b) Vs = −100 mV, It = 300 pA, B = 29 mT, 26.4 × 26.4 nm2. Insets denote these FFT maps. (c) Height profiles obtained from the same line marked by black and red arrows in a and b, respectively. d dI/dV curves obtained from brighter (red line) and darker points (blue line) in the CDW pattern in a. Both dI/dV maps at −76 and +76 meV and these FFT maps reveal the same CDW order. e dI/dV curves obtained from brighter, darker lines in b. Both dI/dV maps at −40 and +40 meV and the insets denote these FFT maps reveal the 1Q-CDW order. (f) Line profile acrossing the dI/dV-FFT map at +40 mV shown in the inset in f. g FFT dI/dV intensity map (z-axis) as a function of wave number: k|| [nm−1] (x-axis) and energy: E - EF [meV] (y-axis), where red dots indicate localized 1Q-CDW.
