### PHYS3040, 3070,
3110 and 3120 EXPERIMENTAL PHYSICS A1, A2, B1 and B2

Experiments
and open ended projects in a selection of the following
topics:

#### Chaos

Driven chaotic
pendulum: phase space and Poincaré sections. Software
simulation of pendulum.

#### Electromagnetic
Waves

Frequency spectrum
analysis of periodic waves. Transmission of e.m. waves in
Lecher wires, artificial lines and waveguides. Reflections
and standing waves. Waveguides, microwave components and
Doppler radar at 10 GHz.

#### Magnetism

Measurement of
magnetic fields and susceptibility. Magnetostriction in
iron and nickel. Measurement of AC magnetic susceptibility,
determination of Curie and Neel temperatures of some rare-earth
elements. The Zeeman effect.

#### Magnetic Resonance
Techniques

Electron Paramagnetic
Resonance: measurement of g factors and hyperfine coupling,
g factor anisotropy, super-hyperfine splitting. Pulsed Nuclear
Magnetic Resonance and Magnetic Resonance Imaging: measurement
of spin-spin and spin-lattice relaxation times, principles
of magnetic resonance imaging.

#### Nuclear Radiations
and Counting

Interaction and
absorption of alpha, beta, gamma rays and neutrons in matter.
Gamma ray spectrometry using a sodium iodide detector and
multi-channel analysis. Radioactivity induced by thermal
neutron irradiation, measurement of half life. Time coincidence
counting techniques and instrumentation for gamma rays.
Gamma-gamma angular correlations and the determination of
nuclear angular momenta. The Mössbauer effect and hyperfine
interactions. Measurement of lifetime of cosmic-ray muons.

#### Optics and Lasers
(See syllabus for PHYS3770 and PHYS3780, Laser and Spectroscopy,
and Photonics Laboratory.)

#### Semiconductors
and Condensed Matter Physics

Band gap measurement
in silicon and germanium. Measurement of band gap in a quantum
well gallium aluminium arsenide sample. Conductivity of
germanium as a function of temperature. Electron tunnelling
through a potential barrier.

#### Superconductivity

Critical temperature,
critical currents, magnetisation and AC susceptibility of
high temperature superconductors. The DC and AC Josephson
effects and magnetic flux quantisation in a high temperature
SQUID.

#### Vacuum Techniques
and Materials Characterisation

Vacuum techniques.
Deposition of thin metal films in a vacuum evaporator and
in a sputter coating unit. Diffraction of X-rays by cubic
materials. Scanning tunnelling microscopy. Scanning electron
microscopy. The transmission electron microscope and electron
diffraction. Electron probe micro-analysis of materials.

####

### Further
Information

For more information
about PHYS3040 contact:

last updated 1st February 2011

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