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Transient photoconductivity in EuSe
Affiliation:1. Department of Physical Chemistry, Kharkov V. Karazin National University, Kharkov 61022, Ukraine;2. Institute of Physico-Organic Chemistry and Coal Chemistry, National Academy of Science of Ukraine, Donetsk 83114, Ukraine;3. Institute for Single Crystals, National Academy of Science of Ukraine, Kharkov 61072, Ukraine;1. Pfizer, 610 Main Street, Cambridge, MA, United States;2. Pfizer, Eastern Point Road, Groton, CT, United States;3. Pfizer, Drug Safety Research & Development, Sandwich, United Kingdom;4. AstraZeneca Neuroscience iMED, 141 Portland St., Cambridge, MA, United States;5. JL3Pharma LLC, 28 Cove Side Lane, Stonington, CT, United States;1. School of Forestry, Henan Agricultural University, Zhengzhou 450002, China;2. University of Wuppertal, School of Architecture and Civil Engineering, Laboratory of Soil, and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany;3. King Abdulaziz University, Faculty of Meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, 21589 Jeddah, Saudi Arabia;4. University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33516 Kafr El-Sheikh, Egypt;5. Department of Environment, Energy and Geoinformatics, Sejong University, Seoul 05006, Republic of Korea;6. Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia;7. Department of Geology Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia;8. School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China;1. Pharmaceutical and Heterocyclic Compounds Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114, Iran;2. Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), PO-Box 45195-1159, Gavazang, Zanjan, Iran
Abstract:Transient photoconductivity measurements in EuSe have been made in order to distinguish between mobility and lifetime effects in steady state photoconductivity. The results show that in the paramagnetic region the decay time is constant while the mobility is thermally activated. The data are explained by a magnetic impurity state model including both charged and neutral defects. In this model both hopping and quasi-thermally activated band conduction may occur.
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