Transition temperature of YBaCuO

In summary, the accepted transition temperature for Yttrium Barium Copper Oxide (YBa2Cu3O(7-x)) is 92K, although some sources report a value of 93K. This value may vary depending on the oxygen content in the sample. A value of 91K is common for a bulk sample, while a thin film may have a higher value. This was determined for a sample of just under 1g of YBaCuO.
  • #1
Barny
49
0
Hi,

Sorry to be a pain but I can't find what I'm looking for on the internet and our lab is locked.

I need to know the accepted transtition temperature for Yttrium Barium Copper Oxide (YBa2Cu3O(7-x)

Is anyone able to give me a figure or ideally point me in the direction of a web resource that has it?

I know this depends on exactly how much oxygen is in the sample, but is there a "general" value? My sample has T=91K but I'd like to compare this to what would be expected.

Kind Regards

Luke
 
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  • #2
The accepted bulk value of optimally doped YBCO is 92K (some report 93K, but more accurate measurements tend to give a value closer to 92K).

91K would be a good value for e.g. a relatively thick film.
 
  • #3
91K is a reasonable value for a bulk sample, but high for a thin film.
 
  • #4
Thanks guys,

This was determined for just under 1g of YBaCuO, so I'm fairly happy with that result.

Much Appreciated!
 

FAQ: Transition temperature of YBaCuO

What is the transition temperature of YBaCuO?

The transition temperature of YBaCuO refers to the temperature at which the material undergoes a phase transition from a superconducting state to a normal conducting state. It is a critical property of this material and is often denoted as Tc.

What factors affect the transition temperature of YBaCuO?

The transition temperature of YBaCuO is affected by several factors, including the composition and purity of the material, the presence of impurities, and the applied magnetic field. In general, higher purity and higher concentrations of YBaCuO tend to result in a higher transition temperature.

How is the transition temperature of YBaCuO measured?

The transition temperature of YBaCuO is typically measured using techniques such as resistivity or magnetic susceptibility measurements. These techniques involve measuring the electrical or magnetic properties of the material as it is cooled or heated, and identifying the temperature at which a significant change occurs.

Why is the transition temperature of YBaCuO important?

The transition temperature of YBaCuO is important because it is one of the key characteristics of this material as a superconductor. Understanding and controlling the transition temperature is crucial for practical applications of YBaCuO, such as in superconducting wires or devices.

How does the transition temperature of YBaCuO compare to other superconductors?

The transition temperature of YBaCuO is relatively high compared to other superconductors, with a Tc of around 92 K. This makes it a promising material for use in high-temperature superconducting applications, as it can operate at higher temperatures than traditional superconductors, which typically have Tc values below 30 K.

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