Now showing items 1-3 of 3

    • Bi-quadratic magnetoelectric coupling in underdoped La2CuO4+x 

      Mukherjee, S.; Andersen, B. M.; Viskadourakis, Z.; Radulov, I.; Panagopoulos, Christos (2013)
      The recent discovery of relaxor ferroelectricity and magnetoelectric effect in lightly doped cuprate material La2CuO4+x has provided a number of questions concerning its theoretical description. Using a Ginzburg–Landau ...
    • Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La2CuO4+x 

      Viskadourakis, Z.; Radulov, I.; Petrovic, A. P.; Mukherjee, S.; Andersen, B. M.; Jelbert, G.; Headings, N. S.; Hayden, S. M.; Kiefer, K.; Landsgesell, S.; Argyriou, D. N.; Panagopoulos, Christos (2012)
      We report the discovery of ferroelectricity below 4.5 K in highly underdoped La2CuO4+x accompanied by slow charge dynamics which develop below T ∼ 40 K. An anisotropic magnetoelectric response has also been observed, ...
    • Theory of the magnetoeletric effect in a lightly doped high-Tc cuprate 

      Mukherjee, S.; Andersen, B. M.; Viskadourakis, Z.; Radulov, I.; Panagopoulos, Christos (2012)
      In a recent study, Viskadourakis et al. (arXiv:1111.0050) discovered that extremely underdoped La2CuO4+x is a relaxor ferroelectric and a magnetoelectric material at low temperatures. It is further observed that the ...