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Ross, C.A.1
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We define the term of phase transition, in our case, to be the transformation of the Ni arrays from one magnetic state (superparamagnetic) to another (ferromagnetic) magnetic state. For both magnetic states, the system (arrays) has uniform physical properties, such as microstructure and magnetization. Thus, the term merely describes the different physical properties of the two magnetic states
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We define the term of phase transition, in our case, to be the transformation of the Ni arrays from one magnetic state (superparamagnetic) to another (ferromagnetic) magnetic state. For both magnetic states, the system (arrays) has uniform physical properties, such as microstructure and magnetization. Thus, the term merely describes the different physical properties of the two magnetic states.
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We measured the raw M-H curve (1st) of the sample (Ni arrays on Si), and then removed the Ni arrays from the Si substrate by mechanical polishing. The remaining sample was examined by SEM to ensure the complete removal of the Ni, and then was sent to M-H (2nd) measurement again. We subtracted the second M-H (only Si) from the first M-H (Ni on Si) to ensure that the magnetic properties were contributed from the Ni alone. We applied this method to both in-plane (short-axis) and out-of-plane (long-axis) measurements considering that the Si's diamagnetism signal is axial-dependent
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We measured the raw M-H curve (1st) of the sample (Ni arrays on Si), and then removed the Ni arrays from the Si substrate by mechanical polishing. The remaining sample was examined by SEM to ensure the complete removal of the Ni, and then was sent to M-H (2nd) measurement again. We subtracted the second M-H (only Si) from the first M-H (Ni on Si) to ensure that the magnetic properties were contributed from the Ni alone. We applied this method to both in-plane (short-axis) and out-of-plane (long-axis) measurements considering that the Si's diamagnetism signal is axial-dependent.
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79959402764
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In our case, we define the nanocrystalline structure to be an array containing hundreds of crystals, with each crystal featuring a diameter of 2-3 nanometers. The micrograph of the nanocrystals can be acquired in Ref.. Because of the random orientations and the low microstructural ordering of these nanocrystals, it results in a diffusive and dull rim as demonstrated in Fig.
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In our case, we define the nanocrystalline structure to be an array containing hundreds of crystals, with each crystal featuring a diameter of 2-3 nanometers. The micrograph of the nanocrystals can be acquired in Ref.. Because of the random orientations and the low microstructural ordering of these nanocrystals, it results in a diffusive and dull rim as demonstrated in Fig..
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16
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79959451229
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We define the polycrystalline structure to be an array containing hundreds of laminar grains, with each grain featuring ∼30 nanometers in length and ∼3 nanometers in diameter. These laminar grains tend to assemble together and to align along the long-axis of the arrays, as can be seen in Fig. of Ref.. Because of its higher microstructure ordering than the nanocrystalline structure, the polycrystalline structure displays more order and brighter diffraction spots as demonstrated in Figs
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We define the polycrystalline structure to be an array containing hundreds of laminar grains, with each grain featuring ∼30 nanometers in length and ∼3 nanometers in diameter. These laminar grains tend to assemble together and to align along the long-axis of the arrays, as can be seen in Fig. of Ref.. Because of its higher microstructure ordering than the nanocrystalline structure, the polycrystalline structure displays more order and brighter diffraction spots as demonstrated in Figs.
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18
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79959404417
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19 emu) to fit the data. The value was estimated by dividing the moment to the number of nano crystals subject to the measurement
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19 emu) to fit the data. The value was estimated by dividing the moment to the number of nano crystals subject to the measurement.
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