It was recently shown that superlattices where layers of the 8% Co-doped BaFe2As2 superconducting pnictide are intercalated with non superconducting ultrathin layers of either SrTiO3 or of oxygen-rich BaFe2As2, can be used to control flux pinning, thereby increasing critical fields and currents, without significantly affecting the critical temperature of the pristine superconducting material. However, little is known about the electron properties of these systems. Here, we investigate the electrodynamics of these superconducting pnictide superlattices in the normal and superconducting state by using infrared reflectivity, from THz to visible range. We find that multigap structure of these superlattices is preserved, whereas some significant changes are observed in their electronic structure with respect to those of the original pnictide. Our results suggest that possible attempts to further increase the flux pinning may lead to a breakdown of the pnictide superconducting properties.
Skip Nav Destination
,
,
,
,
,
,
,
,
,
,
Article navigation
2 June 2014
Research Article|
June 03 2014
Electrodynamics of superconducting pnictide superlattices
A. Perucchi;
A. Perucchi
1
INSTM Udr Trieste-ST and Elettra - Sincrotrone Trieste S.C.p.A.
, Area Science Park, I-34012 Trieste, Italy
Search for other works by this author on:
F. Capitani;
F. Capitani
2Dipartimento di Fisica,
Università di Roma Sapienza
, Piazzale Aldo Moro 2, I-00185 Rome, Italy
Search for other works by this author on:
P. Di Pietro;
P. Di Pietro
1
INSTM Udr Trieste-ST and Elettra - Sincrotrone Trieste S.C.p.A.
, Area Science Park, I-34012 Trieste, Italy
Search for other works by this author on:
S. Lupi;
S. Lupi
3CNR-IOM and Dipartimento di Fisica,
Università di Roma Sapienza
, P.le Aldo Moro 2, I-00185 Roma, Italy
Search for other works by this author on:
S. Lee;
S. Lee
4Department of Materials Science and Engineering,
University of Wisconsin-Madison
, Madison, Wisconsin 53706, USA
Search for other works by this author on:
J. H. Kang;
J. H. Kang
4Department of Materials Science and Engineering,
University of Wisconsin-Madison
, Madison, Wisconsin 53706, USA
Search for other works by this author on:
J. Jiang;
J. Jiang
5Applied Superconductivity Center, National High Magnetic Field Laboratory,
Florida State University
, 2031 East Paul Dirac Drive, Tallahassee, Florida 32310, USA
Search for other works by this author on:
J. D. Weiss;
J. D. Weiss
5Applied Superconductivity Center, National High Magnetic Field Laboratory,
Florida State University
, 2031 East Paul Dirac Drive, Tallahassee, Florida 32310, USA
Search for other works by this author on:
E. E. Hellstrom;
E. E. Hellstrom
5Applied Superconductivity Center, National High Magnetic Field Laboratory,
Florida State University
, 2031 East Paul Dirac Drive, Tallahassee, Florida 32310, USA
Search for other works by this author on:
C. B. Eom;
C. B. Eom
4Department of Materials Science and Engineering,
University of Wisconsin-Madison
, Madison, Wisconsin 53706, USA
Search for other works by this author on:
P. Dore
P. Dore
6CNR-SPIN and Dipartimento di Fisica,
Università di Roma Sapienza
, P.le Aldo Moro 2, I-00185 Roma, Italy
Search for other works by this author on:
A. Perucchi
1
F. Capitani
2
P. Di Pietro
1
S. Lupi
3
S. Lee
4
J. H. Kang
4
J. Jiang
5
J. D. Weiss
5
E. E. Hellstrom
5
C. B. Eom
4
P. Dore
6
1
INSTM Udr Trieste-ST and Elettra - Sincrotrone Trieste S.C.p.A.
, Area Science Park, I-34012 Trieste, Italy
2Dipartimento di Fisica,
Università di Roma Sapienza
, Piazzale Aldo Moro 2, I-00185 Rome, Italy
3CNR-IOM and Dipartimento di Fisica,
Università di Roma Sapienza
, P.le Aldo Moro 2, I-00185 Roma, Italy
4Department of Materials Science and Engineering,
University of Wisconsin-Madison
, Madison, Wisconsin 53706, USA
5Applied Superconductivity Center, National High Magnetic Field Laboratory,
Florida State University
, 2031 East Paul Dirac Drive, Tallahassee, Florida 32310, USA
6CNR-SPIN and Dipartimento di Fisica,
Università di Roma Sapienza
, P.le Aldo Moro 2, I-00185 Roma, Italy
Appl. Phys. Lett. 104, 222601 (2014)
Article history
Received:
April 02 2014
Accepted:
May 20 2014
Citation
A. Perucchi, F. Capitani, P. Di Pietro, S. Lupi, S. Lee, J. H. Kang, J. Jiang, J. D. Weiss, E. E. Hellstrom, C. B. Eom, P. Dore; Electrodynamics of superconducting pnictide superlattices. Appl. Phys. Lett. 2 June 2014; 104 (22): 222601. https://doi.org/10.1063/1.4880939
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Diamagnetic levitation of water realized with a simple device consisting of ordinary permanent magnets
Tomoya Naito, Tomoaki Suzuki, et al.
Charge localization in optoelectronic and photocatalytic applications: Computational perspective
Francesco Ambrosio, Julia Wiktor
Related Content
Evidence for composition variations and impurity segregation at grain boundaries in high current-density polycrystalline K- and Co-doped BaFe2As2 superconductors
Appl. Phys. Lett. (October 2014)
Can nitrogen-based cobalt pnictides exist?
J. Appl. Phys. (September 2013)
Probing the Energy Gaps of a Multi-Gap Superconductor: Ba(1-x)KxFe2As2
J. Undergrad. Rep. Phys. (January 2021)
Enhanced upper critical field in Co-doped Ba122 superconductors by lattice defect tuning
APL Mater. (November 2019)
Transport critical current measurements on a Cu-substituted BaFe2As2 superconductor
J. Appl. Phys. (January 2014)