Thickness-dependent magnetic properties of Ce<sub>9</sub>Fe<sub>91</sub>films

Zhou, Xueyun; Wang, Zhenkun; Ge, Shenguang; Wang, Dianyuan; Yu, Jun; Yao, Dongsheng

doi:10.1002/pssa.201431420

Cited by 5 publications

(6 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Remarkably, a similar trend in H c and M s was also observed for ferrite thin lms, which likely indicated a change in the magnetization spin axis, in addition to a reorientation of the domains above critical thickness [28,29]. In PVO thin lms, however, a strong paramagnetic response for thinner lms is indicative of dead layer at the surface of lms, which consists isolated Pr 3+ atoms.…”

Section: Methodssupporting

confidence: 63%

Enhancement of magnetic properties in compressively strained PrVO3 thin films

Kumar

Fouchet

David

et al. 2019

Phys. Rev. Materials

View full text Add to dashboard Cite

Strain engineering is an important issue in oxides thin lms to explore new functionalities. Here, a series of high quality epitaxial PrVO 3 (PVO) thin lms were grown, by Pulsed Laser Deposition (PLD) technique, as a function of thickness on (La,Sr)(Al,Ta)O 3 (100) [LSAT (100)] and LaAlO 3 (100) [LAO (100)] substrates with nominal lattice mismatch of-0.8 % and-2.9 %, respectively. The X-ray diraction revealed a constant out-of-plane lattice parameter of PVO/LSAT with increase in lm thickness, while a rather continuous decrease for PVO/LAO lms. Whereas thicker PVO lms show a ferromagnetic-like behavior, at low thickness a surprising decrease of coercivity (H c) and increase of saturation magnetization (M s) is observed. This behavior is described using a classical model of dead layer which possesses a strong paramagnetic susceptibility. It is also shown how capping of PVO lm can aid in recovering the pure magnetic properties of PVO, by diminishing the contribution from dead layer. Finally, the Néel temperature (T N) is examined as a function of lm thickness, and found to vary in the range of 25 K and 30 K for LSAT and LAO, respectively. These results pave the way for the use of vanadate in thin lm devices.

show abstract

Section: Methodssupporting

confidence: 63%

Enhancement of magnetic properties in compressively strained PrVO3 thin films

Kumar

Fouchet

David

et al. 2019

Phys. Rev. Materials

View full text Add to dashboard Cite

show abstract

“…4a) and 773 K (Fig. 4b), respectively, which is correlated with the rotate magnetic anisotropy field (H rot k ) in the films with stripe domain structure [2,8,9]. Increasing the substrate temperature leads to the following (shown in Fig.…”

Section: Resultsmentioning

confidence: 91%

“…In our samples, the electronic configuration of Ce is 4f 1 5d 1 6s 2 , the s − d mixing gives an anti-parallel coupling between the spins of the itinerant electrons. In addition, experiments also showed antiferromagnetic coupling between Ce and Fe since magnetic reduction with increasing Ce content [2]. According to Craig and Goldburg [16], the Néel point T N of an antiferromagnet can be defined by the position of singularity of the ∂ρ/∂T versus temperature curves shown in Fig.…”

Section: Resultsmentioning

confidence: 97%

“…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%

“…In the earlier studies, the stripe domain magnetic structure has been obtained in Ce 9 Fe 91 [2] and Fe 0.73 (Sm 2 O 3 ) 0.27 films [3] when the film thickness is higher than a critical thickness (t c ). L Sun reports that with the addition of Gd and Tb, the easy axis of the perpendicular uniaxial anisotropy evolves from film plane to film normal [1].…”

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

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

Zhou

Yao

Hou

et al. 2015

J Supercond Nov Magn

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Tuning structural properties, morphology and magnetic characteristics of nanostructured Ni‐Co‐Fe/ITO ternary alloys by galvanostatic pretreatment process

Saraç

Trong

Baykul

et al. 2022

Microscopy Res & Technique

View full text Add to dashboard Cite

In this research, the structural properties, surface morphology, and magnetic characteristics of nanostructured ternary ferromagnetic alloys grown by a cost‐effective and effortless two‐step electrochemical deposition method on indium tin oxide (ITO) substrates with and without a galvanostatic pretreatment process (GPP) were examined. The GPP was applied at various pretreatment current densities (PCDs) such as −10, −20, and − 30 mA/cm2. The effect of the PCD on the Ni, Co, and Fe contents is found to be insignificant and all resultant Ni‐Co‐Fe thin films show an abnormal co‐deposition. The films have nano‐sized crystallites ranging from 17.3 to 19.6 nm and showed a face‐centered cubic structure with the [111] preferential growth. Compared to the non‐GPP applied Ni‐Co‐Fe film, growing the ternary Ni‐Co‐Fe film on ITO at the PCD of −30 mA/cm2 causes an improvement in the crystal quality and a reduction in the particle size from 150 ± 50 to 70 ± 20 nm. A decrement in the surface roughness and coercivity was also achieved by applying the GPP at the PCD of −30 mA/cm2, but the opposite is true for the GPP performed at the PCD of −10 mA/cm2. The GPP has an effect on the magnetic Squareness Ratio (SQR), but the influence of the PCD on the SQR parameter is negligible. The obtained findings reveal that the properties of the Ni‐Co‐Fe/ITO ternary alloys can be tuned through the GPP applied in various PCDs. Highlights • The effect of the PCD on the Ni, Co, and Fe contents is found to be insignificant. • The films have nano‐sized crystallites and showed a face‐centered cubic structure with the [111] preferential growth. • The analysis reveals that the GPP changes the crystal quality, Hc parameter, surface roughness, and particle size of the films. • The GPP has an effect on the magnetic squareness ratio (SQR), but the influence of the PCD on the SQR parameter is negligible. • The films had nano‐sized crystallites ranging from 17.3 to 19.6 nm. • The films were ferromagnetic, and the Hc and SQR parameters of the films ranged from 30.2 to 42.7 Oe and from 8.8% to 19.6%.

show abstract

Thickness-dependent magnetic properties of Ce₉Fe₉₁films

Cited by 5 publications

References 20 publications

Enhancement of magnetic properties in compressively strained PrVO3 thin films

Enhancement of magnetic properties in compressively strained PrVO3 thin films

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

Tuning structural properties, morphology and magnetic characteristics of nanostructured Ni‐Co‐Fe/ITO ternary alloys by galvanostatic pretreatment process

Contact Info

Product

Resources

About

Thickness-dependent magnetic properties of Ce9Fe91films

Cited by 5 publications

References 20 publications

Enhancement of magnetic properties in compressively strained PrVO3 thin films

Enhancement of magnetic properties in compressively strained PrVO3 thin films

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

Tuning structural properties, morphology and magnetic characteristics of nanostructured Ni‐Co‐Fe/ITO ternary alloys by galvanostatic pretreatment process

Contact Info

Product

Resources

About

Thickness-dependent magnetic properties of Ce₉Fe₉₁films