title: Detection of anisotropic hyperfine transitions in zero magnetic field using field-cycling techniques.
abstract: For the first time, we describe the detection of hyperfine transitions in zero magnetic field using field-cycling techniques and pulsed EPR spectroscopy. The sample investigated was coal, which shows an anisotropic electron spin-(13)C hyperfine interaction.
authors.affiliation: Institut f]ur Physikalische Chemie, Universit]at M]unchen, Butenandtstrasse 5-13, Munich, D-81377, Germany.
authors.forename: G
authors.initials: G
authors.lastname: Sturm
authors.forename: D
authors.initials: D
authors.lastname: Kilian
authors.forename: A
authors.initials: A
authors.lastname: Lötz
authors.forename: J
authors.initials: J
authors.lastname: Voitländer
mesh_terms: D016880:Anisotropy; D002247:Carbon Isotopes; D003031:Coal; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods*
chemical_list: D002247:Carbon Isotopes; D003031:Coal