Scanning Tunneling Spectroscopy of Neptunium Pentoxide Electronic Structures

Scanning Tunneling Spectroscopy data captures the electronic structure of neptunium pentoxide in both semimetallic and semiconducting states. Data was collected using both lock-in and direct I(V) measurement methods. The dataset was contributed by Benjamin Heiner via Harvard Dataverse and was last updated in April 2026.

Use Cases

• Classify semimetallic versus semiconducting states from I(V) spectroscopy curves.
• Analyze electronic density of states features from lock-in amplifier derivative signals.
• Compare electronic structure measurements collected via direct I(V) and lock-in methods.
• Validate theoretical models of neptunium pentoxide using experimental tunneling spectroscopy data.

Strengths

• Data includes measurements from two distinct collection methods: lock-in and direct I(V).
• Covers two distinct electronic structure phases: semimetallic and semiconducting.

Limitations

• Sample size and number of spectral curves are unknown.
• Specific experimental parameters and measurement conditions are not detailed.

Provenance

Source

Harvard Dataverse, contributed by Benjamin Heiner.

Collection Method

Experimental data collected via Scanning Tunneling Spectroscopy.

Freshness

Last updated in April 2026.