期刊
PHYSICAL REVIEW B
卷 92, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.92.075125
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资金
- NSF CAREER award [DMR-1056625]
- NSF [DMR-0944772, DMR-1305647]
- US Department of Energy (DOE), Office of Basic Energy Sciences (BES), Materials Sciences and Engineering Division
- U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- Scientific User Facilities Division, Office of Basic Energy Sciences, US Department of Energy
- [DMR-1337567]
- Direct For Mathematical & Physical Scien [1521208] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1621145, 1337567] Funding Source: National Science Foundation
- Division Of Materials Research [1521208] Funding Source: National Science Foundation
The evolution of the electronic properties of electron-doped (Sr1-x La-x)(2)IrO4 is experimentally explored as the doping limit of La is approached. As electrons are introduced, the electronic ground-state transitions from a spin-orbit Mott phase into an electronically phase separated state, where long-range magnetic order vanishes beyond x = 0.02 and charge transport remains percolative up to the limit of La substitution (x approximate to 0.06). In particular, the electronic ground state remains inhomogeneous even beyond the collapse of the parent state's longrange antiferromagnetic order, while persistent short-range magnetism survives up to the highest La-substitution levels. Furthermore, as electrons are doped into Sr2IrO4, we observe the appearance of a low-temperature magnetic glasslike state intermediate to the complete suppression of antiferromagnetic order. Universalities and differences in the electron-doped phase diagrams of single-layer and bilayer Ruddlesden-Popper strontium iridates are discussed.
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