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High Temperature Superconductivity: Competing order


   School of Physics

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  Prof Antony Carrington  No more applications being accepted  Funded PhD Project (Students Worldwide)

About the Project

The project:

High temperature superconductivity has the potential to transform use of electrical power, enabling low carbon technologies such as fusion reactors and electric airplanes. Exploitation of superconductivity is aided by a greater understanding of the fundamental physics of these materials, enabling the search for new, better materials. This project will focus on the cuprate superconductors, working towards the worldwide effort to uncover the fundamental mechanism that causes superconductivity. A central question is the nature of the normal (non-superconducting) state from which the superconducting state emerges at the transition temperature. It is known that there are several other competing ordering tendencies, characterized by charge and spin excitations and order. However, whether these cause, destroy or are irrelevant to superconductivity is an open question which we will investigate.

We will employ a variety of measurement techniques to investigate the nature of the normal state and in-particular the nature of the various competing phases. These will include electrical and thermal transport (resistivity, Hall effect, thermoelectric power etc) and specific heat.  We will use external parameters, such as high hydrostatic pressure or uniaxial stress, to tune the materials and hence suppress or enhance the competing phases and observe the effect of this both on the normal state properties and the superconductivity. Experiments will often be conducted at high magnetic field using facilities both in Bristol and at international centers in Toulouse (France), and Nijmegen (Netherlands).

During this PhD you will learn about superconductivity, experimental techniques for low temperature physics including high magnetic fields, and calculations necessary to understand the data (such as modelling reconstructions and distortion of the Fermi surface and their influence on the thermodynamic and transport properties).  Bristol has extensive high performance computing facilities available for this numerical modelling.

Visit http://www.bristol.ac.uk/physics/research/qsm/postgrad/ for more details.

Candidate requirements: 

Candidates should have completed an undergraduate degree (minimum 2(i) honours or equivalent) in Physics, and have a strong interest in experimental physics. Specific knowledge about superconductivity is not required.

How to apply:

Please make an online application for this project at http://www.bris.ac.uk/pg-howtoapply. Please select Physics PhD on the Programme Choice page. You will be prompted to enter details of the studentship in the Funding and Research Details sections of the form. Please make sure you include the title of studentship and the contact supervisor in your Personal Statement.


Funding Notes

This studentship is fully funded under the EPSRC Doctoral Training Partnership. Funding will cover tuition fees at the UK student level and an annual stipend for up to three and half years at the standard UKRI stipend rate (currently £15,609 per annum for 2021/22).

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