Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2001-07-26
Phys. Rev. B 65, 100502R (2002)
Physics
Condensed Matter
Strongly Correlated Electrons
5 pages
Scientific paper
10.1103/PhysRevB.65.100502
The synthetic organic compound lambda-(BETS)2FeCl4 undergoes successive transitions from an antiferromagnetic insulator to a metal and then to a superconductor as a magnetic field is increased. We use a Hubbard-Kondo model to clarify the role of the Fe(3+) magnetic ions in these phase transitions. In the high-field regime, the magnetic field acting on the electron spins is compensated by the exchange field He due to the magnetic ions. This suggests that the field-induced superconducting state is the same as the zero-field superconducting state which occurs under pressure or when the Fe(3+) ions are replaced by non-magnetic Ga(3+) ions. We show how He can be extracted from the observed splitting of the Shubnikov-de Haas frequencies. Furthermore, we use this method of extracting He to predict the field range for field-induced superconductivity in other materials.
Cepas Olivier
McKenzie Ross H.
Merino Jaime
No associations
LandOfFree
Magnetic-field-induced superconductivity in layered organic molecular crystals with localized magnetic moments does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Magnetic-field-induced superconductivity in layered organic molecular crystals with localized magnetic moments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic-field-induced superconductivity in layered organic molecular crystals with localized magnetic moments will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-292383