National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Spectroscopic Evidence for Polaronic Behaviour of the Strong Spin-Orbit Insulator Sr(sup 3)Ir(sup2)O(sup 7).

DE141154710

Publication Date	2013
Personal Author	King, P. D. C.; Takayama, T.; Tamai, A.; Rozbicki, E.; Walker, S. M. K.; Shi, M.; Patthey, L.; Moore, R. G.; Lu, D.; Shen, K. M.
Page Count	6
Abstract	We investigate the bilayer Ruddlesden-Popper iridate Sr3Ir2O7 by temperature-dependent angle-resolved photoemission. We find a narrow-gap correlated insulator, with spectral features indicative of a polaronic ground state, strikingly similar to that observed previously for the parent compounds of the cuprate superconductors. We additionally observe similar behaviour for the single-layer cousin Sr2IrO4, indicating that strong electron-boson coupling dominates the low-energy excitations of this exotic family of materials, and providing a microscopic link between the insulating ground states of the seemingly-disparate 3d cuprates and 5d iridates.
Keywords	Polarons Bosons Coupling Cuprates Electrons Excitation Superconductors
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	46 - Physics
Corporate Authors	Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201503
Contract Number	DE-AC02-76SF00515

Spectroscopic Evidence for Polaronic Behaviour of the Strong Spin-Orbit Insulator Sr(sup 3)Ir(sup2)O(sup 7).

Spectroscopic Evidence for Polaronic Behaviour of the Strong Spin-Orbit Insulator Sr(sup 3)Ir(sup2)O(sup 7).
DE141154710

Publication Date	2013
Personal Author	King, P. D. C.; Takayama, T.; Tamai, A.; Rozbicki, E.; Walker, S. M. K.; Shi, M.; Patthey, L.; Moore, R. G.; Lu, D.; Shen, K. M.
Page Count	6
Abstract	We investigate the bilayer Ruddlesden-Popper iridate Sr3Ir2O7 by temperature-dependent angle-resolved photoemission. We find a narrow-gap correlated insulator, with spectral features indicative of a polaronic ground state, strikingly similar to that observed previously for the parent compounds of the cuprate superconductors. We additionally observe similar behaviour for the single-layer cousin Sr2IrO4, indicating that strong electron-boson coupling dominates the low-energy excitations of this exotic family of materials, and providing a microscopic link between the insulating ground states of the seemingly-disparate 3d cuprates and 5d iridates.
Keywords	Polarons Bosons Coupling Cuprates Electrons Excitation Superconductors
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	46 - Physics
Corporate Authors	Stanford Linear Accelerator Center, CA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201503
Contract Number	DE-AC02-76SF00515