Electron spin resonance at DPPH - determinig the magnetic field as a function of the resonance frequency

VP6.2.6.2
Electron spin resonance at DPPH - determinig the magnetic field as a function of the resonance frequency
Electron spin resonance at DPPH - determinig the magnetic field as a function of the resonance frequency Diagram of resonance condition of free electrons (P6.2.6.2)
Electron spin resonance at DPPH - determinig the magnetic field as a function of the resonance frequency

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Description

The experiment P6.2.6.2 verifies electron spin resonance in diphenylpicryl- hydrazyl (DPPH). DPPH is a radical, in which a free electron is present in a nitrogen atom. In the experiment, the magnetic field B which fulfills the resonance condition the resonance frequencies ν can be set in a continuous range from 13 to 130 MHz. The aim of the evaluation is to determine the g factor.

Components of equipment sets

1 51455 ESR basic unit LD
1 514571 ESR supply unit LD
1 555604 Pair of Helmholtz coils LD
1 575304 Digital storage oscilloscope 70 MHz two-channel LD
2 50102  4  BNC cable, 1 m LD
3 30011  8  Saddle base LD
1 50120  4  Connecting lead, 32 A, 25 cm, red LD
1 50125  4  Connecting lead, 32 A, 50 cm, red LD
1 50126  4  Connecting lead, 32 A, 50 cm, blue LD
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