2.3.3.3.94. NXsts

Status:

application definition (contribution), extends NXspm

Description:

An application definition to describe Scanning Tunneling Spectroscopy (STS). ...

An application definition to describe Scanning Tunneling Spectroscopy (STS).

NXsts is an extension of NXspm.

Symbols:

No symbol table

Groups cited:

NXcollection, NXentry, NXenvironment, NXinstrument, NXlockin, NXpid_controller, NXsensor, NXspm_bias_spectroscopy, NXspm_positioner, NXspm_scan_control

Structure:

ENTRY: (required) NXentry ⤆

definition: (required) NX_CHAR ⤆

Name of the definition that is used for the application. ...

Name of the definition that is used for the application.

Obligatory value: NXsts

experiment_technique: (required) NX_CHAR ⤆

The specific to STM experiment. ...

The specific to STM experiment.

Obligatory value: STS

scan_mode: (required) NX_CHAR ⤆

The mode between the tip and sample of the tunneling spectroscopy experiment ...

The mode between the tip and sample of the tunneling spectroscopy experiment.

Any of these values or a custom value (if you use a custom value, also set @custom=True):

  • constant height

  • constant current

  • constant spacing

INSTRUMENT: (required) NXinstrument ⤆

lockin_amplifier: (recommended) NXlockin ⤆

The lock-in amplifier information.

current_sensorTAG: (recommended) NXsensor ⤆

Information for current sensor.

SCAN_ENVIRONMENT: (optional) NXenvironment ⤆

SPM_SCAN_CONTROL: (recommended) NXspm_scan_control ⤆

bias_spectroscopy_environment: (required) NXenvironment ⤆

To explain bias (sweep measurement) voltage applied to the sample.

SPM_BIAS_SPECTROSCOPY: (required) NXspm_bias_spectroscopy ⤆

Setup and scan data for continuous measurement of bias-voltage on the su ...

Setup and scan data for continuous measurement of bias-voltage on the subject of experiment vs tunneling current from probe.

SPM_POSITIONER: (recommended) NXspm_positioner ⤆

z_controller: (recommended) NXpid_controller ⤆

reproducibility_indicators: (optional) NXcollection ⤆

The group's concepts hold the link to the related concepts that define the ...

The group’s concepts hold the link to the related concepts that define the reproducibility of the STM experiment.

current: (optional) NX_NUMBER

The tunneling current between tip and sample after application of bias vol ...

The tunneling current between tip and sample after application of bias voltage. This should be a link to /ENTRY[*]/INSTRUMENT[*]/current_sensorTAG/current

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

current_offset: (optional) NX_NUMBER

The offset in tunneling current between tip and sample after application o ...

The offset in tunneling current between tip and sample after application of bias voltage. This should be a link to /ENTRY[*]/INSTRUMENT[*]/current_sensorTAG[current_sensor*]/current_offset

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

current_gain: (optional) NX_NUMBER

Proportional relationship between the probe output voltage and the actual ...

Proportional relationship between the probe output voltage and the actual tunneling current when measuring the tunneling current. This should be a link to /ENTRY[*]/INSTRUMENT[*]/current_sensorTAG[current_sensor*]/amplifier/current_gain

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

modulation_signal_type: (optional) NX_CHAR ⤆

This is the signal on which the modulation voltage or current will be adde ...

This is the signal on which the modulation voltage or current will be added. This should be a link to /ENTRY[*]/INSTRUMENT[*]/lockin_amplifier/modulation_signal_type

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

reference_frequency: (optional) NX_NUMBER

The frequency of the sine modulation that is used as carrier signal of inp ...

The frequency of the sine modulation that is used as carrier signal of input signal in lock-in. This should be a link to /ENTRY[*]/INSTRUMENT[*]/lockin_amplifier/reference_frequency

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

BIAS_SWEEP: (optional) NXspm_scan_control

Bias sweep measurement in bias spectroscopy. ...

Bias sweep measurement in bias spectroscopy. This should be a link to /ENTRY[*]/INSTRUMENT[*]/bias_spectroscopy_environment/BIAS_SPECTROSCOPY[bias_spectroscopy]/bias_sweep

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

resolution_indicators: (optional) NXcollection ⤆

The group's concepts hold the link to the related concepts that define the ...

The group’s concepts hold the link to the related concepts that define the resolution of the STM experiment.

head_temperature: (optional) NX_NUMBER

This should be a link to ...

This should be a link to /entry/instrument/scan_environment/head_temperature

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

cryo_bottom_temperature: (optional) NX_NUMBER

This should be a link to ...

This should be a link to /entry/instrument/scan_environment/cryo_bottom_temperature

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

cryo_shield_temperature: (optional) NX_NUMBER

This should be a link to ...

This should be a link to /entry/instrument/scan_environment/cryo_shield_temperature

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

modulation_signal_type: (optional) NX_CHAR ⤆

This is the signal on which the modulation voltage or current will be adde ...

This is the signal on which the modulation voltage or current will be added. This should be a link to /ENTRY[*]/INSTRUMENT[*]/lockin_amplifier/modulation_signal_type

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

modulation_frequency: (optional) NX_NUMBER

The frequency of the sine modulation that is used to modulate the signal i ...

The frequency of the sine modulation that is used to modulate the signal in lock-in. This should be a link to /ENTRY[*]/INSTRUMENT[*]/lockin_amplifier/modulation_frequency

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the

BIAS_SWEEP: (optional) NXspm_scan_control

This should be a link to ...

This should be a link to /ENTRY[*]/INSTRUMENT[*]/bias_spectroscopy_environment/SPM_BIAS_SPECTROSCOPY[bias_spectroscopy]/bias_sweep

Note: group name (could be any meaningful and relevant name e.g. entry in ENTRY[entry]) inside the square bracket would be the exact name of the NXentry group.

Hypertext Anchors

List of hypertext anchors for all groups, fields, attributes, and links defined in this class.

NXDL Source:

https://github.com/FAIRmat-NFDI/nexus_definitions/tree/fairmat/contributed_definitions/NXsts.nxdl.xml