Journal
PHYSICAL REVIEW B
Volume 80, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.081201
Keywords
electrical conductivity; hydrogen; hyperfine interactions; impurity states; indium compounds; muonium; paramagnetic materials; semiconductor materials; tin compounds
Funding
- Engineering and Physical Sciences Research Council, U. K. [EP/G004447/1]
- U. S. National Science Foundation [DMR-0604501]
- R. A. Welch Foundation [D-1321]
- U. K. Science and Technology Facilities Council
- EPSRC [EP/G004447/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G004447/1] Funding Source: researchfish
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Muonium, and by analogy hydrogen, is shown to form a shallow-donor state in In2O3 and SnO2. The paramagnetic charge state is stable below similar to 50 K in In2O3 and similar to 30 K in SnO2 which, coupled with its extremely small effective hyperfine splitting in both cases, allows its identification as the shallow-donor state. This has important implications for the controversial issue of the origins of conductivity in transparent conducting oxides.
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