Magnetic structure and high frequency properties of Fe25Ni75–ZnO film

Zhou, Xueyun; Yao, Dongsheng; Xie, W.J.; Wei, Jianning; Xu, Gaoping

doi:10.1016/j.jallcom.2012.03.084

Cited by 7 publications

(8 citation statements)

References 15 publications

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“…In addition, annealing at certain temperatures can also lead to a transition from stripe domain towards single domain. A similar magnetic structure transition has subsequently been observed in several permalloy films and metal oxide–3d transition metals mixture films with increasing film thickness and temperature. However, rare‐earth metal‐doped Fe films with stripe domains have been less investigated.…”

Section: Introductionsupporting

confidence: 76%

“…b), the hysteresis loop shape was unchanged whatever the orientation of the in‐plane applied magnetic field. The hysteresis shape can be characterized by a linear decrease of magnetization from its saturation value (about 500 Oe) and a moderate remanence, which is typical of thin films with perpendicular anisotropy exhibiting a weak stripe domain structure . Figure c displays the in‐plane M r / M s , H c and H k of the films as a function of film thickness.…”

Section: Resultsmentioning

confidence: 99%

“…The eddy current in the patterned films can also be greatly suppressed. Stripe domain structure depends on the heat‐treatment temperature, film thickness and dopant atom . A ferromagnetic ordering with weak stripe domain has been observed in Fe 78 B 13 Si 9 films with thickness between 125 and 1000 nm.…”

Section: Introductionmentioning

confidence: 97%

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Thickness-dependent magnetic properties of Ce₉Fe₉₁films

Zhou

Wang

et al. 2014

Phys. Status Solidi A

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Ce9Fe91 ﬁlms with different thickness were fabricated by a rf magnetron sputtering method. The critical thickness tc for spin reorientation transition has been determined to be approximately 90 nm using the stripe domain model and magnetic force microscope. Above tc, the films exhibit Bloch stripe domain structure and a superhigh resonance frequency at 6 GHz is found for the ∥ stripe configuration. However, below tc, the ﬁlms possess an in‐plane uniaxial anisotropy caused by order interface tension between the film and substrate, and the resonance frequency breaks through the Snoek limit.

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Section: Introductionsupporting

confidence: 76%

Section: Resultsmentioning

confidence: 99%

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Thickness-dependent magnetic properties of Ce₉Fe₉₁films

Zhou

Wang

et al. 2014

Phys. Status Solidi A

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“…The resonance peak f r changes from 3.73 to 4.2 GHz as the substrate temperature from 623 to 773 K. According to LLG equation [10], lead to the calculated H rot k changes from 230 to 180 Oe due to 4πM s increasing rapidly for the films as substrate temperature increases. (b) An increment of the resonance linewidths is found.…”

Section: Resultsmentioning

confidence: 96%

“…The film exhibits in-plane anisotropy due to dominant shape anisotropy. It is noted that the in-plane hysteresis loop of the film has noticeable characteristics of the so-called as transcritical hysteresis loops, which is an indication of the appearance of perpendicular anisotropy exhibiting a weak stripe domain structure [2][3][4][5][8][9][10]. Furthermore, from the area between the two normalized magnetization curves, we obtained the effective anisotropy field: H eff k = 2(K u − 2πM 2 s )/M s = −5000Oe, in which, 4πM s = 11, 923 Gs.…”

Section: Methodsmentioning

confidence: 99%

The Effect of Substrate Temperature on Magnetic and Electrical Properties of (CeO2)14Fe86 Films

Zhou

Yao

Hou

et al. 2015

J Supercond Nov Magn

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CeO 2 ) 14 Fe 86 films were fabricated by a radio frequency magnetron sputtering method at different substrate temperature. The results reveal that the films deposited at substrate temperature lower than 773 K exhibit a strong perpendicular anisotropy, and the correlated dynamic permeability spectrum measured over the frequency range of 0.5-7 GHz shows a high resonance frequency. The study on the relation R ∼ T shows that the resistivity of the thin film has a minimum near room temperature and tends to saturation as the temperature approaches zero, exhibiting a behavior reminiscent of Kondo scattering. However, as the substrate temperature increases to 973 K, the films possess an in-plane anisotropy and lower H c . The resistivity exhibits a transition from metal to insulator characterized by a maximum of resistivity at 220 K.

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