SkoltechOn

Applications and enigma of high temperature superconductors

Vivek Kumar BhartiyaPh.D. Student Supervisor- Prof. Boris V. FineTheoretical Condensed Matter PhysicsPhotonics and Quantum MaterialsSkolkovo Institute of Science and Technology, MoscowSkoltechOn 23 October 2015

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OutlineIntroduction Existing and potential market Conventional theory Enigma of high temperature superconductivity and my research direction Conclusion

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Introduction. Application. Conventional Theory. Enigma. Future. Conclusion. ThanksHeike Kamerlingh Onnes -1913 Meissner effectDiamagnetic Nature

Applications3

High -Temperature Superconductors4

CRTITICAL PHASE DIAGRAMIntroduction. Application. Conventional Theory. Enigma. Future. Conclusion. ThanksTc (K) Al1.2Pb7.2Sn3.7Nb3 Sn18H2S203YBCO90BaFe2 As250LaBCO160

Conventional Superconductor Unconventional (HTS) Superconductor

5Introduction. Application. Conventional Theory. Enigma. Future. Conclusion. Thanks

Identification of HTC PHASE DIAGRAM was a central theme.

Applications5

6TRANSMISSION LOSSES IN U.S. > $10bNational Electric Delivery Technologies Roadmap, sponsored by DOE, U.S. The technology readiness of critical electric system needs to be accelerated, particularly for high-temperature superconducting cables and transformers

THE NEED FOR SUPERCONDUCTING TECHNOLOGYIntroduction. Application. Conventional Theory. Enigma. Future. Conclusion. Thanks

7EnergyPower Cables

Introduction. Application. Conventional Theory. Enigma. Future. Conclusion. Thanks

THE NEED FOR SUPERCONDUCTING TECHNOLOGY

7Applications

8EnergyIntroduction. Application. Conventional Theory. Enigma. Future. Conclusion. Thanks

Fault current limiters

THE NEED FOR SUPERCONDUCTING TECHNOLOGY

8Applications

9EnergyIntroduction. Application. Conventional Theory. Enigma. Future. Conclusion. Thanks

Synchronous Condenser

THE NEED FOR SUPERCONDUCTING TECHNOLOGY

9Applications

10EnergyIntroduction. Application. Conventional Theory. Enigma. Future. Conclusion. ThanksPower Cables Fault current limitersSynchronous CondenserCrycoolersSuperconducting Motors (36.5 MW, U.S. Navy) Transformers (30 % reduction in losses)Magnets

$2B annually U.S. global marketTHE NEED FOR SUPERCONDUCTING TECHNOLOGY

10Applications

11SPACE and ElectronicsU.S. Military interest- microwave filter systemU.S. mobile communication systemSQUID- superconducting quantum interference deviceIntroduction. Application. Conventional Theory. Enigma. Future. Conclusion. Thanks

2. Josephson Sampler Resolution -5.9 Gbps1. Microwave filter systemMore than 6000 superconducting filter system in cell phone tower

THE NEED FOR SUPERCONDUCTING TECHNOLOGY

Make it more symbolic because audience are diverse.11Applications

12http://www.superpower-inc.com/http://www.suptech.com/http://www.fujikura.co.uk/home/https://www.bnl.gov/magnets/index.php

On the ground

Introduction. Application. Conventional Theory. Enigma. Conclusion. Thanks

13WHY NOT SHRODINGER EQUATION??Number of particles = 200

Possible energy levels = 2200 Atoms in the Universe = 10 80, can accommodate state vector of around 100 electrons,

Even if this impossible computer is made,

Level spacing = 200 /2200 = 10-60

From Heisenberg Uncertainty relation, after spending universe life time , resolution = 10-33

Lets start.Introduction. Application. Conventional Theory. Enigma. Conclusion. Thanks

Bardeen Cooper Schrieffer Theory pairing of electrons and coherencePhenomenological assumptionLeads to calculation of TcExplain all properties of LTSBut dont predict room temp Superconductivity

14Introduction. Application. Conventional Theory. Enigma. Conclusion. Thanks

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Introduction. Application. Conventional Theory. Enigma. Conclusion. Thanks

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ENIGMAIntroduction. Application. Conventional Theory. Enigma. Conclusion. Thanks

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Hypothesis of two-dimensional stripe arrangement and its implications for the superconductivity in high-Tc cuprates, B. V. Fine PRB 70 (2004).Dimensionality of Spin Modulations in 1/8-Doped Lanthanum Cuprates from the Perspective of NQR and SR Experiments, J.G. Brandenburg, B. V. Fine, J Supercond Nov Magn (2013) 26:26212626 ,Magnetic vortices instead of stripes: another interpretation of magnetic neutron scattering in lanthanum cuprates, B. V. Fine.Introduction. Application. Conventional Theory. Enigma. Conclusion. Thanks

Developing cheaper manufacturing technology & methodologyReducing cooling cost and increasing efficiencyReducing matrix size in the wireIncreasing critical temperature and critical magnetic field

To accomplish all of the above, One of the possible ways isDoing theory, in a close relation with experimental results, to predict room-temperature superconductivity.

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