Carlos Sa de Melo
Associate Professor

 

Ph.D., Stanford University, 1991
Phone: (404)894-5088
Room: Howey- N05

EMail: carlos.sademelo [at] physics.gatech.edu
 

Publications: The Superconducting State in Magnetic Fields--Special Topics and New Trends

■ Research ■

My areas of interest include theoretical condensed matter physics and theoretical biophysics. I strongly encourage my students to be broad, deep and creative. Breadth of knowledge is very important in today's physics job market, as is expert (deep) knowledge in a particular area. But most of all the development of new directions, never explored before is the dominant component of my research. Most of my interests are in many body aspects of electronic systems including superconductors, ferromagnets, semiconductors and biological systems. Here is a list of my current research activities:

• Superconductors in High Magnetic Fields.
• Crossover from BCS to Bose-Einstein Superconductivity.
• Magnetic Coupling in Ferromagnetic/Superconductor Multilayers.
• Macroscopic Quantum Phenomena in Ferroelectrics and Ferromagnets.
• Bose-Einstein Condensation of Excitonic Systems.
• Quantum Computing with p -SQUIDs.
• Colossal Magneto Resistance Materials.
• Quantum Mutations in DNA.

■ Publications ■

1. “Coexistence of Antiferromagnetism and Triplet Superconductivity”, W. Zhang and C. A. R. Sa de Melo (cond-mat/0411582), accepted for publication in J. Appl. Phys. (2004).
2. “Magnetoresistive Effects in Ferromagnet-Superconductor Multilayers”, E. M. Stoudenmire, and C. A. R. Sa de Melo (cond-mat/0412005), accepted for publication in J. Appl. Phys. (2004).
3. “Organic Quasi-One-Dimensional Superconductors: Quasiparticle Density of States and Spin Susceptibility”, R. D. Duncan, R. W. Cherng and C. A. R. Sá de Melo, Physica C 391, 98 (2003).
4. “Triplet Superconductors: Josephson Effect in Quasi-One-Dimensional Systems”, C. D. Vaccarella, R. D. Duncan, and C. A. R. Sa de Melo, Physica C 391, 89 (2003).
5. “F-wave versus P-wave Superconductivity in Organic Conductors”, R. W. Cherng, and C. A. R. Sa de Melo, Phy. Rev. B 67, 212505 (2003).
6. “Interplay of Magnetism and Superconductivity at the Nanometer Scale: The Case of Complex Oxide Heterostructures”, C. A. R. Sa de Melo, Invited paper for the Proceedings of the Third International Workshop on Magnetism and Superconductivity of Advanced Materials, July 14-19, 2002, Ladek Zdroj, Poland. Physica C 387, 17 (2003).
7. “Triplet Organic Quasi-One-Dimensional Superconductors: Angular Dependence of the Upper Critical Field”, C. D. Vaccarella and C. A. R. Sa de Melo, Phys. Rev. B 64, 212504 (2001).
8. “Organic Quasi-One-Dimensional Superconductors: Quasiparticle Density of States and Spin Susceptibility”, R D Duncan, C D Vaccarella, and C. A. R. Sa de Melo, Phys. Rev. B 64, 172503 (2001).
9. “Phase Fluctuations and Vortex Lattice Melting in Triplet Quasi-One-Dimensional Superconductors at High Magnetic Fields”, C. D. Vaccarella and C. A. R. Sa de Melo, Phys. Rev. B 63, 180505 (2001).
10. “Evolution from the BCS to the Bose-Einstein limit in a d-wave superconductor at T=0”, L. S. Borkowski, and C. A. R. Sa de Melo, Acta Phys. Pol. A 99, 691 (2001).
11. “Magnetic field induced singlet to triplet phase transition in organic superconductors”, C. D. Vaccarella and C. A. R. Sa de Melo, Physica C 341-348, 293 (2000).
12. “Magnetic exchange coupling through superconductors: a trilayer study”, C. A. R. Sa de Melo, Phys. Rev. B 62, 12303 (2000).
13. “Thermodynamic properties in the evolution from BCS to Bose-Einstein condensation for a d-wave superconductor at low temperatures”, R. D. Duncan, and C. A. R. Sa de Melo, Phys. Rev. B. 62, 9675 (2000).
14. "Vortex Core Spectroscopy and Vortex Cooling: A Photovoltaic Effect", C.A.R. Sa de Melo, Phys. Rev B 60, 10423 (1999).
15. "Reentrant Superconductivity in Quasi-Low-Dimensional Systems: Magnetic Field Effects", C.A.R. Sa de Melo, J. Superconductivity 12, 459 (1999).
16. "Singlet versus Triplet Superconductivity in Quasi-One-Dimensional Systems: Magnetic Field Effects", C.A.R. Sa de Melo, in "The Superconducting State in Magnetic Fields: Special Topics and New Trends", World Scientific, Singapore (1998)
17. "Exchange Coupling in Ferromagnet/Superconductor/Ferromagnet Multilayers", C.A.R. Sa de Melo, Phys. Rev. Lett. 79, 1933 (1997).
18. "BCS to Bose Crossover: Broken Symmetry State", J.R. Engelbrecht, M. Randeria, and C. A. R. Sa de Melo, Phys. Rev. B 55, 15153 (1997).