Campus Units
Physics and Astronomy, Ames Laboratory
Document Type
Article
Publication Version
Published Version
Publication Date
7-1-2011
Journal or Book Title
Physical Review B
Volume
84
Issue
1
First Page
014519
DOI
10.1103/PhysRevB.84.014519
Abstract
Temperature-dependent interplane resistivity ρc(T) was measured systematically as a function of transition-metal substitution in the iron-arsenide superconductors Ba(Fe1−xMx)2As2, M=Ni, Pd, Rh. The data are compared with the behavior found in Ba(Fe1−xCox)2As2, revealing resistive signatures of pseudogap. In all compounds we find resistivity crossover at a characteristic pseudogap temperature T∗ from nonmetallic to metallic temperature dependence on cooling. Suppression of T∗ proceeds very similarly in cases of Ni and Pd doping and much faster than in similar cases of Co and Rh doping. In cases of Co and Rh doping an additional minimum in the temperature-dependent ρc emerges for high dopings, when superconductivity is completely suppressed. These features are consistent with the existence of a charge gap covering part of the Fermi surface. The part of the Fermi surface affected by this gap is notably larger for Ni- and Pd-doped compositions than in Co- and Rh-doped compounds.
Copyright Owner
American Physical Society
Copyright Date
2011
Language
en
File Format
application/pdf
Recommended Citation
Tanatar, Makariy A.; Ni, Ni; Thaler, Alexander N.; Bud’ko, Sergey L.; Canfield, Paul C.; and Prozorov, Ruslan, "Systematics of the temperature-dependent interplane resistivity in Ba(Fe(1)xM(x))(2)As-2 (M = Co, Rh, Ni, and Pd)" (2011). Physics and Astronomy Publications. 681.
https://lib.dr.iastate.edu/physastro_pubs/681
Comments
This article is published as Tanatar, M. A., N. Ni, A. Thaler, S. L. Bud’ko, P. C. Canfield, and R. Prozorov. "Systematics of the temperature-dependent interplane resistivity in Ba (Fe 1− x M x) 2 As 2 (M= Co, Rh, Ni, and Pd)." Physical Review B 84, no. 1 (2011): 014519. DOI: 10.1103/PhysRevB.84.014519. Posted with permission.