Física del Estado Sólido y Molécula

 
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Efecto Hall en germanio-n- y p (teslámetro)

Principle

The resistivity and Hall voltage of 2  rectangular germanium samples ( n- and p-) are measured as a function of temperature and magnetic field.
The band spacing, the specific conductivity, the type of charge carrier and the mobility of the charge carriers are ...

 
Detalles

Num.Producto: P2530102

Efecto Hall en germanio -n y -p (PC)

Tasks
  1. The Hall voltage is measured at room temperature and constant magnetic field as a function of the control current and plotted on a graph (measurement without compensation for defect voltage).
  2. The voltage across the sample is measured at room temperature and constant control current ...
 
Detalles

Num.Producto: P2530116

Banda prohibida del germanio

 
Detalles

Num.Producto: P2530402

Resolución atómica de la superficie de grafito con el micros copio de efecto túnel (STM)

Principle

Approaching a very sharp metal tip to an electrically conductive sample by applying a electrical field leads to a current between tip and sample without any mechanical contact. This so-called tunneling current is used to investigate the electronic topography on the sub nanometer ...

 
Detalles

Num.Producto: P2532000

Métodos básicos de visualización de micro y nanoescructuras con el microscopio de fuerza atómica (AFM)

Principio

Aproximando una punta aguda de silicona montada en un voladizo (cantilever) para tomar una muestra de una superficie se produce una interacción a escala  atómica. El resultado es que el voladizo se curva, lo cual se detecta con láser. En modo ...

 
Detalles

Num.Producto: P2538000

Rayos X característicos de cobre

Principle

Spectra of X-rays from a copper anode are analyzed using different monocrystals and the results plotted graphically. The energies of the characteristic lines are then determined from the positions of the glancing angles for the various ...

 
Detalles

Num.Producto: P2540101

Rayos X característicos de molibdeno

Principle

Spectra of X-rays from a molybdenum anode are to be analyzed by means of different monocrystals and the results plotted graphically. The energies of the characteristic lines are then to be determined from the positions of the glancing angles for the various orders of ...

 
Detalles

Num.Producto: P2540201

Rayos X característicos de hierro

Principle

Spectra of X-rays from an iron anode are to be analyzed by means of different monocrystals and the results plotted graphically. The energies of the characteristic lines are then to be determined from the positions of the glancing angles for the various orders of ...

 
Detalles

Num.Producto: P2540301

Intensidad de rayos X en función de la corriente y el volta- je de ánodo

Principle

The polychromatic X-radiation from a copper anode is analyzed using a LiF monocrystal according to Bragg. Varying the anode current and anode voltage influences the intensity of the characteristic K a and K b radiation.

Tasks

  1. Record the intensity spectrum of ...
 
Detalles

Num.Producto: P2540401

Monocromatización de rayos X de molibdeno

Principle

The X-rays that are generated by an X-ray tube are polychromatic. Numerous experiments (e.g. Debye-Scherrer experiments concerning crystal structures), however, require monochromatic X-radiation, which can be generated by filtering the X-rays with monocrystals or with the aid of ...

 
Detalles

Num.Producto: P2540501

Monocromatización de rayos X de cobre



Principle

The X-rays that are generated by an X-ray tube are polychromatic. Numerous experiments (e.g. Debye-Scherrer experiments concerning crystal structures), however, require monochromatic X-radiation, which can be generated by filtering the X-rays with monocrystals or ...

 
Detalles

Num.Producto: P2540601

Separación del par K-alfa en rayos X de Fe / estructura fina

Principle

The polychromatic iron X-ray spectrum is to analyzed by means of a monocrystal. The energy of the characteristic lines is to be determined from the positions of the glancing angles for various orders of diffraction. The separation of the Ka doublet in higher order diffraction is ...

 
Detalles

Num.Producto: P2540801

Ley de desplazamiento de Duane-Hunt / Quantum de acción de Planck

Principle

X-ray spectra are recorded as a function of the anode voltage. The short wavelength limit of the bremsspectrum is used to determine the agreement with the Duane-Hunt displacement law, and to determine Planck's "quantum of action".

Tasks

  1. Record the intensity of the X-rays ...
 
Detalles

Num.Producto: P2540901

Absorción de rayos X

Principio

La radiación X poli cromática que emite un tubo de rayos X se filtra en términos de su energía con la ayuda de un mono cristal. La radiación monocromática resultante se usa como fuente de radiación primaria para observar el ...

 
Detalles

Num.Producto: P2541101

Bordes de absorción K y L / Ley de Moseley y constante de Rydberg

Principle

Samples of various elements of different atomic numbers are irradiated with X-rays of a known spectral distribution. The energy of the transmitted intensities is analyzed using a monocrystal analyzer. Subsequently, the Rydberg constant and the screening constants are calculated ...

 
Detalles

Num.Producto: P2541201

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