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Document Type |
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Article In Journal |
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Document Title |
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Observation of room temperature ferromagnetism with giant magnetic moment based on Zn1-xCrxO thin films grown on Si(111) substrate via 1,2-dihydroxyethane modified sol-gel dipcoating technique Observation of room temperature ferromagnetism with giant magnetic moment based on Zn1-xCrxO thin films grown on Si(111) substrate via 1,2-dihydroxyethane modified sol-gel dipcoating technique |
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Subject |
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physics |
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Document Language |
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English |
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Abstract |
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Dilute magnetic semiconductors have shown a great encouragement from the technological point of
view owing to their potential application in multiple spintronics, such as spin light-emitting diode, spin
valve transistor, logic device, nonvolatile memory and ultrafast optical switches. Here, we report on the
synthesis of Zn1-xCrxO (0.01 <= x <= 0.09) thin films grown on Si (111) substrate via 1,2-
dihydroxyethane modified sol-gel dip -coating technique for spintronic applications. The influence of
partial substitution of Cr ions into the Zn sites on the chemical composition, morphology, crystal
structure, and magnetic properties of the prepared films was investigated by the X-ray diffraction (XRD),
atomic force microscopy (AFM), high resolution transmission electron microscopy (HR-TEM), dispersive
X-ray spectroscopy (EDS), electron diffraction (SAED), X-ray electron spectroscopy (XPS) and vibrating
magnetometer (VSM). A single phase and highly crystalline films are obtained. These films showed
room temperature ferromagnetism at all Cr ions concentration. The Zn0.95Cr0.05O film showed a
remarkable giant magnetic moment of 2.17 mu(B) at room temperature. This is the highest magnetic
moment value ever achieved among all derived transition elements doped ZnO based dilute magnetic
semiconductors till the date |
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ISSN |
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0167-577X |
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Journal Name |
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MATERIALS LETTERS |
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Volume |
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117 |
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Issue Number |
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1 |
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Publishing Year |
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1437 AH
2016 AD |
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Article Type |
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Article |
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Added Date |
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Wednesday, August 9, 2017 |
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Researchers
| W.E Mahmoud | Mahmoud, W.E | Investigator | Doctorate | w_e_mahmoud@yahoo.com |
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