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Abstract Concentrations of 7 Be and 137 Cs in ground level air in the city area (Belgrade, central Serbia) were determined in the period from 1991–1996. The average monthly concentrations of 7 Be in… (More)
- Jan Jaroszynski, T. Andrearczyk, +7 authors Tomasz Dietl
- Physical review letters
- 2002
We report on the observation of the Ising quantum Hall ferromagnet with Curie temperature T(C) as high as 2 K in a modulation-doped (Cd,Mn)Te heterostructure. In this system field-induced crossing of… (More)
- Snežana Bogdanovich, Dragana Popovic
- Physical review letters
- 2002
The fluctuations of conductivity sigma with time have been studied in a two-dimensional electron system in low-mobility Si inversion layers. The noise power spectrum is approximately 1/f(alpha) with… (More)
- Jan Jaroszynski, Dragana Popovic, Teunis M. Klapwijk
- Physical review letters
- 2002
Studies of low-frequency resistance noise show that the glassy freezing of the two-dimensional (2D) electron system in the vicinity of the metal-insulator transition occurs in all Si inversion… (More)
- Ping V. Lin, Dragana Popovic
- Physical review letters
- 2015
A study of the temperature (T) and density (ns) dependence of conductivity σ(ns,T) of a highly disordered, two-dimensional (2D) electron system in Si demonstrates scaling behavior consistent with the… (More)
- Martine Bovet, Dragana Popovic, +6 authors Philipp Aebi
- 2004
We report room temperature angle-resolved photoemission experiments on $1T\ensuremath{-}{\mathrm{TaS}}_{2}$ and $1T\ensuremath{-}{\mathrm{TaSe}}_{2}$ complemented by density-functional theory… (More)
- Dragana Popovic, Friedrich Reinert, +6 authors Daniel Malterre
- 2005
We present a detailed photoemission study of the surface state dispersion in 0–10 ML thin Ag films on Au111. The dispersion of the L-gap Shockley-type surface state changes monotonically from the one… (More)
- Ivana Raicevic, Jan Jaroszynski, Dragana Popovic, Christos Panagopoulos, Takao Sasagawa
- Physical review letters
- 2008
A c-axis magnetotransport and resistance noise study in La_(1.97)Sr_(0.03)CuO_(4) reveals clear signatures of glassiness, such as hysteresis, memory, and slow, correlated dynamics, but only at… (More)
- Jan Jaroszynski, Dragana Popovic, Teunis M. Klapwijk
- Physical review letters
- 2004
Studies of low-frequency resistance noise show that the dramatic change in the dynamics of the two-dimensional electron system (2DES) in Si that occurs near the metal-insulator transition (MIT)… (More)
- Xiang Guang Feng, Dragana Popovic, Sean Washburn, Vladimir Dobrosavljević
- Physical review letters
- 2001
Experiments on a sufficiently disordered two-dimensional (2D) electron system in silicon reveal a new and unexpected kind of metallic behavior, where the conductivity decreases as sigma(n(s),T) =… (More)