Field-induced first-order ferromagnetic transition in (La0.8Eu0.2)4/3Sr5/3Mn2O7 single crystal

2019 ◽  
Vol 18 (1) ◽  
pp. 55-62 ◽  
Author(s):  
Ru Xing ◽  
Wen-Qing Wang ◽  
Yi Lu ◽  
Jian-Jun Zhao
Keyword(s):  
Single Crystal ◽  
Ferromagnetic Transition ◽  
First Order

Critical end point of the first-order ferromagnetic transition in a Sm0.55(Sr0.5Ca0.5)0.45MnO3 single crystal

2014 ◽  
Vol 365 ◽  
pp. 51-55 ◽  
Author(s):  
D. Mohan Radheep ◽  
P. Sarkar ◽  
S. Arumugam ◽  
R. Suryanarayanan ◽  
P. Mandal
Keyword(s):  
Single Crystal ◽  
Ferromagnetic Transition ◽  
First Order ◽  
End Point

Verification of first‐order magnetic phase transition in single crystal iron films

1982 ◽  
Vol 53 (11) ◽  
pp. 7966-7968 ◽  
Author(s):  
F. J. Rachford ◽  
G. A. Prinz ◽  
J. J. Krebs ◽  
K. B. Hathaway
Keyword(s):  
Phase Transition ◽  
Single Crystal ◽  
Magnetic Phase Transition ◽  
Magnetic Phase ◽  
Iron Films ◽  
First Order ◽  
Order Magnetic Phase Transition

A phenomenological model for thermally-induced hysteresis in polycrystalline shape memory alloys with internal loops

2021 ◽  
pp. 1045389X2110482
Author(s):  
Yuxiang Han ◽  
Haoyuan Du ◽  
Linxiang Wang ◽  
Roderick Melnik
Keyword(s):  
Shape Memory Alloys ◽  
Single Crystal ◽  
Shape Memory ◽  
Phenomenological Model ◽  
Landau Theory ◽  
Thermally Induced ◽  
First Order ◽  
Proposed Model ◽  
Crystal Model ◽  
Hysteretic Response

In the current study, a 1-D phenomenological model is constructed to capture the temperature-induced hysteretic response in polycrystalline shape memory alloys (SMAs). The martensitic and austenitic transformations are regarded as the first-order transitions. A differential single-crystal model is formulated on the basis of Landau theory. It is assumed that the transformation temperatures follow the normal distribution among the grains due to the anisotropic stress field developed in the material. The polycrystalline hysteretic response is expressed as the integration of single-crystal responses. Besides, the prediction strategy for incomplete transitions is presented, and the first-order reversal curves are obtained via density reassignment. The proposed model is numerically implemented for validation. Comparisons between the modeling results and the experimental ones demonstrate the capability of the proposed model in addressing the hysteresis in thermally-induced phase transformations.

CRYSTALLINE STRUCTURE AND PHYSICAL PROPERTIES OF UCo2Al3

2004 ◽  
Vol 18 (30) ◽  
pp. 3905-3914
Author(s):  
E. VERDÍN ◽  
R. ESCUDERO
Keyword(s):  
Intermetallic Compound ◽  
Physical Properties ◽  
Single Crystal ◽  
Intermetallic Compounds ◽  
Heavy Fermion ◽  
Ferromagnetic Transition ◽  
Crystallographic Characteristics ◽  
Heavy Fermion Behavior ◽  
Small Single Crystal ◽  
Weak Ferromagnetic

Some intermetallic compounds which contain uranium or cerium present heavy fermion characteristics. Take, for example, in the UM 2 Al 3 ( M = Pd , Ni ) family, superconductivity and magnetism coexist and present heavy fermion behavior. This work presents the crystallographic characteristics and physical properties of a new compound of this family; the intermetallic compound UCo 2 Al 3. Our initial crystallographic studies performed in a small single crystal show that the structure is hexagonal and similar to the UNi 2 Al 3 and UPd 2 Al 3 parent compounds. The space group is P6/mmm with a=5.125 Å and c=4.167 Å crystalline parameters. Measurements of resistivity and magnetization performed on the single crystal reveal that the compound is not superconducting when measured at about 1.8 K. The compound is highly anisotropic and features related to Kondo-like behavior are observed. A weak ferromagnetic transition is observed at a temperature of about 20 K.

First order magnetization process in Pr2Fe14B single crystal

1987 ◽  
Vol 62 (7) ◽  
pp. 475-478 ◽  
Author(s):  
H Hiroyoshi ◽  
H Kato ◽  
M Yamada ◽  
N Saito ◽  
Y Nakagawa ◽  
...  
Keyword(s):  
Single Crystal ◽  
Magnetization Process ◽  
First Order

Pressure effect on spontaneous magnetization and first-order magnetization process in the Er2Fe17 single crystal

1999 ◽  
Vol 196-197 ◽  
pp. 701-702 ◽  
Author(s):  
J. Kamarád ◽  
O. Mikulina ◽  
Z. Arnold ◽  
B. Garcia-Landa ◽  
M.R. Ibarra ◽  
...  
Keyword(s):  
Single Crystal ◽  
Pressure Effect ◽  
Spontaneous Magnetization ◽  
Magnetization Process ◽  
First Order
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