29 citations · 104 across the 10 of their papers we have counts for
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Stability of optically-active charged excitons in quasi-two dimensional systems
James R. Chapman, Neil F. Johnson, V. Nikos Nicopoulos
A negatively charged quasi-two dimensional exciton () is solved exactly numerically in the presence of a uniform perpendicular B-field. Various quasi-two dimensional geometrie…
Optical properties of a two-dimensional electron gas at even-denominator filling fractions
Darren J. T. Leonard, Neil F. Johnson, V. Nikos Nicopoulos +1
The optical properties of an electron gas in a magnetic field at filling fractions ν= {1\over 2m} (m=1,2,3...) are investigated using the composite fermion picture. The response of…
Evolution of Magnetic Properties of Lightly Doped Copper Oxides
L. P. Gor'kov, V. Nikos Nicopoulos, Pradeep Kumar
We study how doping destroys the AF order in the layered cuprates within the framework of the charge--transfer insulator concept. We use the criterion of stability of the AF backgr…