Transition-Selective Pulses in Zero-Field Nuclear Magnetic Resonance
Transition-Selective Pulses in Zero-Field Nuclear Magnetic Resonance
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DOI：
10.1021/acs.jpca.6b04017
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发表时间：
2016-06-30
影响因子：
2.9
通讯作者：
Pines, Alexander
中科院分区：
文献类型：
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作者：
Sjolander, Tobias F.;Tayler, Michael C. D.;Pines, Alexander
我们使用低振幅、超低频脉冲来驱动零磁场和超低磁场中的核自旋跃迁。类似于高场NMR，一系列复杂的实验变得可用，因为这些实验允许窄带激发。作为第一个演示，具有0.5-5 Hz的激励带宽的脉冲用于布居重新分布、选择性激励和相干滤波。这些方法在解释包含大量跃迁的零场和超低场NMR谱时很有帮助。
We use low-amplitude, ultralow frequency pulses to drive nuclear spin transitions in zero and ultralow magnetic fields. In analogy to high-field NMR, a range of sophisticated experiments becomes available as these allow narrow-band excitation. As a first demonstration, pulses with excitation bandwidths 0.5-5 Hz are used for population redistribution, selective excitation, and coherence filtration. These methods are helpful when interpreting zero- and ultralow-field NMR spectra that contain a large number of transitions.