Dependence of electrical property on the applied magnetic fields in spin coated Fe(III)-Phorphyrin films

8th International Conference on Physics and its Applications

Utari^1,3 ; Kusumandari^1 ; Purnama, B.^1 ; Mudasir^2 ; Abraha, K.^3

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Jl. Ir. Sutami 36A, Kentingan Surakarta

57126, Indonesia^1

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Bulaksumur BLS 21, Yogyakarta

55281, Indonesia^2

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Bulaksumur BLS 21, Yogyakarta

55281, Indonesia^3

关键词: Applied magnetic fields;    Electrical current;    External magnetic field;    Film measurement;    IV characteristics;    Ohmic characteristics;    Saturated current;    Spin-coating method;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012029/pdf
DOI  :  10.1088/1742-6596/776/1/012029

来源: IOP

【 摘 要 】

We report here on the experimental results of the effect of external magnetic field on the current flow in plane surface of Fe(III)-porphyrin thin layer. The deposition of the Fe(III)- porphyrin thin layer was done by spin coating method. The I-V characteristics of film were measured by means of two point probes. The sample of layer number N = 4 was used to evaluate the magnetic effect on the electrical currents. The ohmic characteristics of the I-V film measurement were obtained. The current decreases when magnetic field is applied to the system and saturated current is obtained at a given magnetic field. Here, the decrease in the current can be attributed to the recombination of carrier charge under the magnetic field. In addition, the magnitude of the saturated current is found to increase with the increase in the voltage used.