scholarly journals Magnetic properties and structure of pulsed laser deposited nickel ferrite films

2008 ◽  
Author(s):  
Huiching Chang
Keyword(s):  
Magnetic Properties ◽  
Nickel Ferrite ◽  
Pulsed Laser ◽  
Ferrite Films

Magnetic properties of pulsed laser deposited MnZn-ferrite films as a function of composition

1995 ◽  
Vol 31 (6) ◽  
pp. 3455-3457 ◽  
Author(s):  
P.C. Dorsey ◽  
P. Lubitz ◽  
V.G. Harris ◽  
D.B. Chrisey ◽  
J.S. Horwitz
Keyword(s):  
Magnetic Properties ◽  
Pulsed Laser ◽  
Mnzn Ferrite ◽  
Ferrite Films

scholarly journals Влияние напряжений на магнитные свойства пленок NiFe-=SUB=-2-=/SUB=-O-=SUB=-4-=/SUB=- и CoFe-=SUB=-2-=/SUB=-O-=SUB=-4-=/SUB=- на сапфире

2018 ◽  
Vol 44 (16) ◽  
pp. 57
Author(s):  
А.Э. Муслимов ◽  
А.В. Буташин ◽  
В.М. Каневский
Keyword(s):  
Magnetic Properties ◽  
Coercive Field ◽  
Nickel Ferrite ◽  
Room Temperature ◽  
Cobalt Ferrite ◽  
Mechanical Stresses ◽  
Sapphire Substrates ◽  
Compressive Stresses ◽  
Ferrite Films ◽  
Strain Direction

AbstractWe have studied the influence of mechanical stresses on the magnetic properties of nickel ferrite (NiFev) and cobalt ferrite (CoFe_2O_4) films deposited on sapphire substrates with a - and c -oriented step terrace nanostructures. It is established that compressive stresses favor enhancement of the coercive field in thin ferrite films in the strain direction. Films of magnetically soft nickel ferrite with a room-temperature coercive field of 32.5 mT were obtained.

MAGNETIC PROPERTIES OF NANOCRYSTALLINE CO-FERRITE FILMS DEPOSITED ON SINGLE-CRYSTAL SiO2 SUBSTRATES USING PULSED LASER DEPOSITION

2008 ◽  
Vol 15 (01n02) ◽  
pp. 71-75 ◽  
Author(s):  
J. H. YIN ◽  
J. DING ◽  
B. H. LIU ◽  
X. S. MIAO ◽  
J. B. YI ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Film Thickness ◽  
Magnetic Anisotropy ◽  
Residual Strain ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Post Annealing ◽  
In Situ Heating ◽  
Ferrite Films

Co-ferrite films were prepared using pulsed laser deposition with both post-annealing and in situ heating processes. Magnetic properties of these films were studied in the function of temperature, film thickness, and substrate. The films using post-annealing processes exhibited isotropic microstructure, and the coercivity showed no obvious magnetic anisotropy and no strong dependence on film thickness. Co-ferrite films using in situ heating exhibited (111) highly textured structure and possessed perpendicular anisotropy as well as large coercivity. The preferential texture and magnetic anisotropy were closely associated with substrate temperature and thickness. Perpendicular Hc over 12.5 kOe was obtained in the 33 nm Co-ferrite film deposited on single crystal quartz substrate at 550°C. The high coercivity and perpendicular coercivity may be attributed to the nanocrystalline grain, textured orientation, and large residual strain in these films since large residual strain may induce strong stress anisotropy.

Preparation of Ni-Mn-Zn Ferrite Films on CeO2/YSZ-Buffered Si Substrate

2013 ◽  
Vol 756-759 ◽  
pp. 21-24
Author(s):  
Yi Qing Yang ◽  
Liang Zheng ◽  
Hui Zheng ◽  
Xue Fei Yan
Keyword(s):  
Magnetic Properties ◽  
Buffer Layer ◽  
Pulsed Laser ◽  
Annealing Process ◽  
Laser Deposition ◽  
Ferrite Film ◽  
Si Substrate ◽  
Homogeneous Microstructure ◽  
Zn Ferrite ◽  
Ferrite Films

Ni-Mn-Zn ferrite films were deposited on Si substrate with CeO2/YSZ(YSZ:yttria-stabilized ZrO2) buffer layer by pulsed laser deposition (PLD). The effect of CeO2/YSZ buffer layer on the Ni-Mn-Zn ferrite film was studied by XRD, SEM and VSM. The results revealed that the CeO2/YSZ buffer layer can improve the films crystallinity, smooth the roughness of film, reduce the film crack and lead to a homogeneous microstructure. The saturation magnetization (Ms) higher than 240 emu/cm3 can be obtained. It also found annealing process can improve the film crystallinity and the magnetic properties, decrease the coercivity (Hc).

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