# Three-junction SQUID rocking ratchet.

@article{Sterck2005ThreejunctionSR, title={Three-junction SQUID rocking ratchet.}, author={Albert Sterck and Reinhold Kleiner and Dieter Koelle}, journal={Physical review letters}, year={2005}, volume={95 17}, pages={ 177006 } }

We investigate three-junction SQUIDs which show voltage rectification if biased with an ac current drive with zero mean value. The Josephson phase across the SQUID experiences an effective ratchet potential, and the device acts as an efficient rocking ratchet, as demonstrated experimentally for adiabatic and nonadiabatic drive frequencies. For high-frequency drives the rectified voltage is quantized due to synchronization of the phase dynamics with the external drive. The experimental data are…

## 28 Citations

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- 2009

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Vortex ratchet effect is investigated experimentally in the frequency range between 0.5 MHz and 2 GHz. The ratchet potential is provided by an array of about a quarter of a million nanoengineered…

## References

SHOWING 1-10 OF 10 REFERENCES

APPL

- Computer Science
- 2001

A prototype probability package named APPL (A Probability Programming Language) is presented that can be used to manipulate random variables and examples illustrate its use.

Europhys

- Lett. 28, 459
- 1994

Phys

- Rev. B 70, 024524
- 2004

Phys

- Rev. E 65, 041110
- 2002

Phys

- Rep. 361, 57
- 2002

Phys

- Rev. Lett. 87, 077002
- 2001

Phys

- Rev. E 63, 031111
- 2001

Phys

- Rev. Lett. 84, 258
- 2000

Phys

- Rev. Lett. 71, 1477
- 1993

Phys

- 39, 3113
- 1968