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Quantum phase transition in the magnetic-field-induced normal state of optimum-doped high-Tc cuprate superconductors at low temperatures.
- Source :
-
Physical review letters [Phys Rev Lett] 2009 Jan 09; Vol. 102 (1), pp. 017004. Date of Electronic Publication: 2009 Jan 07. - Publication Year :
- 2009
-
Abstract
- A 60 T magnetic field suppresses the superconducting transition temperature T_{c} in La_{2-p}Sr_{p}CuO_{4} to reveal a Hall number anomaly, which develops only at temperatures below zero-field T_{c} and peaks at the exact location of p that maximizes T_{c}. The anomaly bears a striking resemblance to observations in Bi_{2}Sr_{2-x}La_{x}CuO_{6+delta}, suggesting a normal-state phenomenology common to the cuprates that underlies the high-temperature superconducting phase. The peak is ascribed to a Fermi surface reconstruction at a quantum phase transition near optimum doping that is coincident with the collapse of the pseudogap state.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 102
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 19257230
- Full Text :
- https://doi.org/10.1103/PhysRevLett.102.017004