Nuclear Magnetic Resonance on Oriented ¹⁷⁵Ta and ¹⁷⁷Ta

Abstract

¹⁷⁵Ta and ¹⁷⁷Ta nuclei were oriented at low temperature as dilute impurities in Fe. The magnetic hyperfine splitting frequencies ν=|μB_HF⁄Ih| of the ¹⁷⁵Ta and ¹⁷⁷Ta ground states have been measured to be 320.45(11) and 317.552(55) MHz by using the technique of NMR–ON. Taking the known hyperfine field of ¹⁸¹Ta in Fe, the magnetic moments have been deduced: |μ(¹⁷⁵Ta, 7⁄2⁺)|=2.270(45) and |μ(¹⁷⁷Ta, 7⁄2⁺)|=2.250(45) μ_N. These values of the magnetic moments are discussed in the framework of the rotational model.