title: Heteronuclear dipolar coupling in spin-1 NQR pulsed spin locking.
abstract: We investigate theoretically and experimentally the role of broadening due to heteronuclear dipolar coupling in spin-1 nuclear quadrupole resonance pulsed spin locking. We find the experimental conditions where heteronuclear dipolar coupling is refocused by a standard multipulse sequence. This experimental condition allows us to extend our previously reported ability to measure the homonuclear dipolar coupling of powder samples to include substances that have heteronuclear coupling. These results are useful for designing substance detection algorithms, and for performing sample characterization.
authors.affiliation: George Mason University, Fairfax, VA 22030, United States.
authors.forename: M W
authors.initials: MW
authors.lastname: Malone
authors.affiliation: George Mason University, Fairfax, VA 22030, United States. Electronic address: ksauer1@gmu.edu.
authors.forename: K L
authors.initials: KL
authors.lastname: Sauer
keywords: Broadening; Dipolar coupling; Nuclear quadrupole resonance; Spin-locking