scholarly journals Magnetic transformation in Ni-Mn-In Heusler alloy

Nukleonika ◽  
2015 ◽  
Vol 60 (3) ◽  
pp. 435-438
Author(s):  
Marian Kuzma ◽  
Wojciech Maziarz ◽  
Ireneusz Stefaniuk
Keyword(s):  
Magnetic Properties ◽  
Low Temperature ◽  
Ferromagnetic Resonance ◽  
Temperature Region ◽  
Heusler Alloy ◽  
Antiferromagnetic Interaction ◽  
Magnetic Transformation ◽  
Crystal Transformation ◽  
Crystal State ◽  
Martensitic State

Abstract Magnetic properties of a Ni50Mn35.5In14.5 Heusler ribbon were studied by ferromagnetic resonance (FMR) in the temperature range of 335–100 K. In the temperature region of 265–170 K, the FMR signal disappeared, in spite of the fact that this region comprised the main crystal transformation temperatures: Ms, Mf, As, Af. In the austenite crystal state, a weak antiferromagnetic interaction was observed, whereas ferromagnetism was detected in the low temperature martensitic state.

Magnetic Anisotropy of Cerium Endohedral Metallofullerene

2001 ◽  
Vol 706 ◽  
Author(s):  
Masayasu Inakuma ◽  
Toshiaki Enoki ◽  
Haruhito Kato ◽  
Hisanori Shinohara
Keyword(s):  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Low Temperature ◽  
Magnetic Anisotropy ◽  
Rotational Motion ◽  
Applied Field ◽  
Magnetic Interaction ◽  
Magnetization Measurement ◽  
Antiferromagnetic Interaction ◽  
Antiferromagnetic Coupling

AbstractThe magnetic properties of Ce@C82 have been studied. The magnetic anisotropy of Ce@C82 was analyzed taking account of the crystal field of the interior C82 cage acting on Ce3+ ion. Results showed that the reduction of the susceptibility at low temperature was caused due to the antiferromagnetic coupling between Ce3+ ion and C82 cage. The magnetization measurement at several temperatures also supported the antiferromagnetic interaction at low temperature. The magnetic susceptibility larger than the calculated one was measured at higher temperatures due to the magnetic interaction between the metallofullerenes and between the particles in the crystal. The magnetization of some frozen Ce@C82 solutions was found to depend on the applied field magnitude. The dependence suggested that the magnetic anisotropy of Ce ion induced a torque to restrict the rotational motion of Ce@C82 by the field.

scholarly journals Magnetic Properties of Layered Heisenberg Ferromagnets

1993 ◽  
Vol 46 (4) ◽  
pp. 571 ◽  
Author(s):  
A Du ◽  
GZ Wei
Keyword(s):  
Magnetic Properties ◽  
Low Temperature ◽  
Curie Temperature ◽  
Temperature Region ◽  
Asymptotic Form ◽  
Interlayer Coupling ◽  
Arbitrary Spin ◽  
Spin Fluctuations ◽  
Asymptotic Expressions ◽  
Double Time

The double-time-temperature spin Green's function method is used to study the magnetic properties of layered ferromagnets with arbitrary spin S, within Tyablikov's decoupling approximation. According to the extent to which interlayer coupling suppresses twodimensional spin fluctuations, we divide the low-temperature region into two new ones, and give the asymptotic expressions for magnetisation and susceptibility over different temperature regions, including the low-temperature region, the vicinity of the Curie temperature and the high-temperature region. We also give the Curie temperature in an asymptotic form when inter layer coupling is weak.

Structure, Magnetostriction and Magnetic Properties of the Mn100-xFex (x=50, 58) Alloys Prepared by SPS

2016 ◽  
Vol 848 ◽  
pp. 575-579
Author(s):  
Liang Zhou ◽  
Lei Ma ◽  
Shi Qian Zhao ◽  
Lin Yi Cheng ◽  
Yu Song Du
Keyword(s):  
Magnetic Properties ◽  
Low Temperature ◽  
Temperature Region ◽  
Strain Gauge ◽  
Magnetic Measurement ◽  
Ferromagnetic Phase ◽  
Gradual Transition ◽  
Plasma Sintering ◽  
Single Face ◽  
Spark Plasma

Mn100-xFex (x=50, 58) alloys were prepared by spark plasma sintering (SPS), and the structure, magnetostriction and magnetic properties of the polycrystalline Mn100-xFex alloys were investigated. The results of XRD and SEM showed that the as-cast and annealed samples presented a single face center cubic γ-phase, which is austenite structure. The magnetic measurement showed that Mn100-xFex (x=50, 58) alloys annealed at 700oC were a typical ferromagnet at low temperature and there was a gradual transition from the ferromagnetic phase to the paramagnetic phase in a wide temperature region (about 150-250K). The magnetostriction for the annealed samples, measured by strain-gauge bridge up to 3T, was ~100 ppm at 300K, but the results was chaotic. The results are not in agreement with the results reported. The further research on the mechanism of the magnetostriction is needed.

Single crystal to single crystal transformation of spin-crossover coordination polymers from 3D frameworks to 2D layers

2021 ◽  
Vol 9 (15) ◽  
pp. 5082-5087
Author(s):  
Yu Gong ◽  
Wang-Kang Han ◽  
Hui-Shu Lu ◽  
Qing-Tao Hu ◽  
Huan Tu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Single Crystal ◽  
Coordination Polymers ◽  
Ligand Exchange ◽  
Spin Crossover ◽  
Metal Organic Frameworks ◽  
Crystal Transformation ◽  
Metal Organic

New Hofmann-type metal–organic frameworks display rare and complete ligand exchange induced single crystal to single crystal transformations from 3D frameworks to 2D layers, accompanied by magnetic properties transition from two-step SCO behavior to hysteretic SCO behavior.

Dynamics and magnetic properties of NO molecules encapsulated in open-cage fullerene derivatives evidenced by low temperature heat capacity

2021 ◽  
Author(s):  
Yoji Horii ◽  
Hal Suzuki ◽  
Yuji Miyazaki ◽  
Motohiro Nakano ◽  
Shota Hasegawa ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Magnetic Properties ◽  
Low Temperature ◽  
Magnetic Anisotropy ◽  
Fullerene Derivatives ◽  
Molecular Cages ◽  
Temperature Heat ◽  
Low Temperature Heat Capacity

Heat capacity analyses revealed dynamics and magnetic anisotropy of NO molecules confined in molecular cages.

Structural and low-temperature magnetic properties of as-quenched and annealed Ni–Si–B alloys produced by rapid solidification

2021 ◽  
Vol 132 ◽  
pp. 107140
Author(s):  
M. Ipatov ◽  
V. Zhukova ◽  
L. Dominguez ◽  
K.L. Alvarez ◽  
A. Chizhik ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Low Temperature ◽  
Rapid Solidification
Sign in / Sign up

Export Citation Format

Share Document