scholarly journals Origin of thickness dependence of structural phase transition temperatures in highly strained BiFeO3 thin films

APL Materials ◽  
2016 ◽  
Vol 4 (3) ◽  
pp. 036106 ◽  
Author(s):  
Yongsoo Yang ◽  
Christianne Beekman ◽  
Wolter Siemons ◽  
Christian M. Schlepütz ◽  
Nancy Senabulya ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Thickness Dependence ◽  
Transition Temperatures ◽  
Bifeo3 Thin Films ◽  
Phase Transition Temperatures ◽  
Highly Strained

Cr doping-induced structural phase transition, optical tuning and magnetic enhancement in BiFeO3 thin films

2017 ◽  
Vol 186 ◽  
pp. 198-201 ◽  
Author(s):  
Benlong Guo ◽  
Hongmei Deng ◽  
Xuezhen Zhai ◽  
Wenliang Zhou ◽  
Xiankuan Meng ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Bifeo3 Thin Films ◽  
Magnetic Enhancement ◽  
Cr Doping

scholarly journals Ho and Ti Co-Substitution Tailored Structural Phase Transition and Enhanced Magnetic Properties of BiFeO3 Thin Films

ACS Omega ◽  
2020 ◽  
Vol 5 (45) ◽  
pp. 29292-29299
Author(s):  
Mingjie Sun ◽  
Liang Bai ◽  
Wenjing Ma ◽  
Yanqing Liu ◽  
Junkai Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Magnetic Properties ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Co Substitution ◽  
Bifeo3 Thin Films

The effect of structural phase transition on the magnetic properties of BiFeO3 thin films

2014 ◽  
Vol 26 (3) ◽  
pp. 1283-1290
Author(s):  
Y. Q. Liu ◽  
Y. J. Wang ◽  
J. Zhang ◽  
Y. H. Wu ◽  
Y. J. Zhang ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Magnetic Properties ◽  
Structural Phase Transition ◽  
Structural Phase ◽  
Bifeo3 Thin Films

EFFECT OF THE SURFACES ON ORIENTATIONAL PROPERTIES AND PECULIARITIES OF PHASE TRANSITIONS IN THERMOTROPIC NEMATICS

2005 ◽  
Vol 19 (18) ◽  
pp. 2975-2987 ◽  
Author(s):  
ARIF NESRULLAJEV ◽  
FATMA Z. TEPEHAN
Keyword(s):  
Thin Films ◽  
Phase Transition ◽  
Liquid Phase ◽  
Mean Field Theory ◽  
Mean Field ◽  
Eutectic Mixture ◽  
Transition Temperatures ◽  
Isotropic Liquid ◽  
Liquid Phase Transition ◽  
Phase Transition Temperatures

In this work, the effect of thin films on the orientational, thermotropic and optical properties and on the peculiarities of the nematic–isotropic liquid phase transition has been carried out. The planar textures of MBBA+EBBA eutectic mixture on the surfaces coated with Al 2 O 3 and ZrO 2 thin films have been obtained. The optical and thermodynamical parameters of the obtained, oriented textures have been determined. The effect of thin films on the temperature width of heterophase region and on the nematic–isotropic liquid phase transition temperatures has been investigated. The shift of the phase transition temperatures and the change of the temperature width of the heterophase region have been revealed. For the analysis of peculiarities of the nematic–isotropic liquid phase transition and the heterophase regions of this transition, the mean field theory has been used.

scholarly journals Annealing Effect on Martensitic Transformation and Magneto-Structural Properties of Ni-Mn-In Melt Spun Ribbons

2009 ◽  
Vol 635 ◽  
pp. 81-87 ◽  
Author(s):  
T. Sánchez ◽  
José Luis Sánchez Llamazares ◽  
B. Hernando ◽  
J.D. Santos ◽  
M.L. Sánchez ◽  
...  
Keyword(s):  
Phase Transition ◽  
Structural Properties ◽  
Magnetic Transition ◽  
Structural Phase ◽  
Hysteresis Loops ◽  
Transition Temperatures ◽  
Average Chemical Composition ◽  
Saturation Field ◽  
Existence Region ◽  
Phase Transition Temperatures

We report the effect of a short-time vacuum annealing (1073 K during 10 minutes) on structural phase transition temperatures and magneto-structural properties of as-quenched ribbons of the Heusler alloy Ni50.6Mn34.5In14.9. This alloy crystallizes in a single phase cubic B2-type austenite with a Curie point of TCA=284 K that with the lowering in temperature transforms into a martensite with TCM185 K. The direct and reverse martensitic phase transition temperatures were MS=257 K, Mf = 221 K, AS = 239 K, and Af = 266 K. After annealing austenite shows the highly ordered L21-type structure while the average chemical composition as well as the structural and magnetic transition temperatures were shifted to Ni50.2Mn34.3In15.5 and MS = 253 K, Mf = 238 K, AS = 257 K, Af = 265 K, ΔT = 13 K, TCA = 299 K and TCM207 K. In the annealed samples the magnetization changes associated to the magnetic and structural transitions are more abrupt and magnetization isotherms in both the austenitic and martensitic existence region show higher initial magnetic susceptibility and faster approach to saturation. Field-cooled hysteresis loops at 10 K were shifted along the negative H-axis for both samples, but a significant anomaly was evident on the left side of the hysteresis loop for as-quenched ribbons.

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