197 citations · 684 across the 9 of their papers we have counts for
9 papers
Using x-ray diffraction to identify precipitates in transition metal doped semiconductors
Shengqiang Zhou, K. Potzger, G. Talut +4
In the past decade, room temperature ferromagnetism was often observed in transition metal doped semiconductors, which were claimed as diluted magnetic semiconductors (DMS). Nowada…
Spinel ferrite nanocrystals embedded inside ZnO: magnetic, electronic and magneto-transport properties
Shengqiang Zhou, K. Potzger, Qingyu Xu +8
In this paper we show that spinel ferrite nanocrystals (NiFe2O4, and CoFe2O4) can be texturally embedded inside a ZnO matrix by ion implantation and post-annealing. The two kinds o…
Fe-implanted ZnO: Magnetic precipitates versus dilution
Shengqiang Zhou, K. Potzger, G. Talut +9
Nowadays ferromagnetism is often found in potential diluted magnetic semiconductor systems. However, many authors argue that the observed ferromagnetism stems from ferromagnetic pr…
Ferromagnetism and suppression of metallic clusters in Fe implanted ZnO - a phenomenon related to defects?
Shengqiang Zhou, K. Potzger, G. Talut +7
We investigated ZnO(0001) single crystals annealed in high vacuum with respect to their magnetic properties and cluster formation tendency after implant-doping with Fe. While metal…
Suppression of secondary phase formation in Fe implanted ZnO single crystals
K. Potzger, Shengqiang Zhou, H. Reuther +5
Unwanted secondary phases are one of the major problems in diluted magnetic semiconductor creation. Here, the authors show possibilities to avoid such phases in Fe implanted and po…
Ferromagnetic transition metal implanted ZnO: a diluted magnetic semiconductor?
Shengqiang Zhou, K. Potzger, Qingyu Xu +7
Recently theoretical works predict that some semiconductors (e.g. ZnO) doped with magnetic ions are diluted magnetic semiconductors (DMS). In DMS magnetic ions substitute cation si…