TY - JOUR
T1 - Magnetic properties of MnSb granular films
AU - Mizuguchi, M.
AU - Akinaga, H.
AU - Ono, K.
AU - Oshima, M.
N1 - Funding Information:
This work, partly supported by the New Energy and Industrial Technology Development Organization (NEDO), was performed in JRCAT under the joint research agreement between NAIR and the Angstrom Technology Partnership (ATP).
PY - 2001
Y1 - 2001
N2 - Magnetoresistance (MR) effects were investigated on MnSb granular films. These films were composed of GaAs substrates, deposited MnSb dots, and Sb capping layers. With increasing nominal thickness of MnSb, a sudden increase in the magnetic circular dichroism intensity was observed over 0.7 nm. The extra-huge positive MR effect more than 10,000% was observed for the sample with the nominal thickness of 0.2nm at room temperature. I-V curve analysis showed the jump from the high-resistance state to the low-resistance state at the critical voltage. It is considered that the coalescence among dots which occurs at a certain nominal thickness plays an important role in the extra-huge MR effect.
AB - Magnetoresistance (MR) effects were investigated on MnSb granular films. These films were composed of GaAs substrates, deposited MnSb dots, and Sb capping layers. With increasing nominal thickness of MnSb, a sudden increase in the magnetic circular dichroism intensity was observed over 0.7 nm. The extra-huge positive MR effect more than 10,000% was observed for the sample with the nominal thickness of 0.2nm at room temperature. I-V curve analysis showed the jump from the high-resistance state to the low-resistance state at the critical voltage. It is considered that the coalescence among dots which occurs at a certain nominal thickness plays an important role in the extra-huge MR effect.
KW - Granular systems
KW - MBE
KW - Magneto-optical effects
KW - Magnetoresistance - Thin films
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U2 - 10.1016/S0304-8853(00)00619-3
DO - 10.1016/S0304-8853(00)00619-3
M3 - Article
AN - SCOPUS:33748710427
VL - 226-230
SP - 1838
EP - 1839
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
IS - PART II
ER -