A sample spin-polarized along a leading magnetic field experiences a resonance when the Larmor frequency matches the axion/ALP Compton frequency, generating precessing transverse nuclear magnetization. Here we
We describe a Cs atomic magnetometer operating in the spin-exchange relaxation-free (SERF) regime. With a vapor cell temperature of $103^\circ\rm{C}$ we achieve intrinsic magnetic resonance widths $\Delta B=17 {\rm \mu G}$ corresponding to an electron spin-relaxation rate of $300 {\rm...
Figure1shows the fabricated device designs, using spin-valves. A spin-valve is a thin film multilayer structure composed of two ferromagnetic (FM) layers separated by a Cu spacer16. In a top-pinned configuration, the top FM layer has its magnetization direction fixed through exchange bias by a...
Alkali-metal magnetometers compete with SQUID detectors as the most sensitive magnetic field sensors. Their sensitivity is limited by relaxation due to spin-exchange collisions. We demonstrate a K magnetometer in which spin-exchange relaxation is completely eliminated by operating at high K density and...
Exchange of Two-Spin Order in Nuclear Magnetic Resonance: Separation of Exchange and Cross- Relaxation Processes. J. Am. Chem. Soc. 1985, 107, 6440-6446.Wagner G, Bodenhausen G, Mu¨ ller N, Rance M, Sorensen OW, Ernst RR, Wu¨ thrich K (1985) Exchange of two-spin order in ...
Chemical exchange between bound and free states or different bound states also contributes to R2 on the ms timescale (Hansen, Vallurupalli, & Kay, 2008; Kleckner & Foster, 2011), which is exploited in relaxation dispersion-type experiments (see later). For ordered proteins, the model-free ...
We further compare g-factors computed using different exchange-correlation functionals (Vxc) in SI Sec. SV. It is found that the magnitude of Δg~ and the trend of g-factor change with the state energy are both insensitive to Vxc. Since T2∗ only depends on Δg~, our predictions of ...
We further compare g-factors computed using different exchange-correlation functionals (Vxc) in SI Sec. SV. It is found that the magnitude of Δg~ and the trend of g-factor change with the state energy are both insensitive to Vxc. Since T2∗ only depends on Δg~, our predictions of ...
where a pronounced in- and out-of-plane exchange coupling anisotropy can gap out magnetic excitations. By inspection of our electronic band’s structure, this gap can be attributed to the very small electron pockets at the Fermi level in the Γ-plane compared to those in the Z-plane. Additi...
relaxation parameters that were determined were independent of the observed hyperfine transition, (iii) the time constants were independent of saturating pulse length, (iv) T1e and T1n do not change when Heisenberg exchange is changed by varying the concentration, and (v) Heisenberg exchange is ind...