期刊
PHYSICAL REVIEW LETTERS
卷 85, 期 18, 页码 3918-3921出版社
AMERICAN PHYSICAL SOC
DOI: 10.1103/PhysRevLett.85.3918
关键词
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The charge of quasiparticles in a fractional quantum Nail (FQH) liquid, tunneling through a partly reflecting constriction with transmission t, was determined via shot noise measurements. In the nu = 1/3 FQH state, a charge smoothly evolving from e* = e/3 for t(1/3) congruent to 1 to e* = e for t(1/3) << 1 was determined, agreeing with chiral Luttinger liquid theory. In the nu = 2/5 FQH state the quasiparticle charge evolves smoothly from e* = e/5 at t(2/5) congruent to 1 to a maximum charge less than e* = e/3 at t(2/5) << 1 Thus it appears that quasiparticles with an approximate charge e/5 pass a barrier they see as almost opaque.
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