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Updated: Jun 15, 2025

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics
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在纳米线表面附近的大增强纳米级动态核极化

Sahand Tabatabaei1,2, Pritam Priyadarsi1,2, Namanish Singh1,2

  • 1Department of Physics and Astronomy, University of Waterloo, Waterloo, ON, Canada N2L3G1.

Science advances
|August 21, 2024
PubMed
概括

动态核极化 (DNP) 增强了纳米级核磁共振,将测量时间缩短了200倍. 这一突破使得像单个生物分子这样的微小系统的详细研究成为可能.

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Nuclear Overhauser Enhancement (NOE)01:07

Nuclear Overhauser Enhancement (NOE)

Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling.  This phenomenon, called the Nuclear Overhauser Enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring...
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