The electrical conductivity and thermoelectric power of lithium ferrite in the vicinity of the order-disorder transition temperature

1986 ◽  
Vol 53 (5) ◽  
pp. L107-L113 ◽  
Author(s):  
T. E. Whall ◽  
N. Salerno ◽  
Y. Proykova ◽  
K. A. Mirza ◽  
S. Mazen
Keyword(s):  
Electrical Conductivity ◽  
Transition Temperature ◽  
Thermoelectric Power ◽  
Lithium Ferrite ◽  
Disorder Transition ◽  
Disorder Transition Temperature

scholarly journals Alloying effect on the order–disorder transformation in tetragonal FeNi

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Li-Yun Tian ◽  
Oliver Gutfleisch ◽  
Olle Eriksson ◽  
Levente Vitos
Keyword(s):  
Transition Temperature ◽  
High Performance ◽  
Density Functional ◽  
Permanent Magnets ◽  
Positive Impact ◽  
Design Strategies ◽  
Alloying Effect ◽  
Functional Theory ◽  
Disorder Transition ◽  
Disorder Transition Temperature

AbstractTetragonal ($${\hbox{L1}}_{0}$$ L1 0 ) FeNi is a promising material for high-performance rare-earth-free permanent magnets. Pure tetragonal FeNi is very difficult to synthesize due to its low chemical order–disorder transition temperature ($$\approx {593}$$ ≈ 593  K), and thus one must consider alternative non-equilibrium processing routes and alloy design strategies that make the formation of tetragonal FeNi feasible. In this paper, we investigate by density functional theory as implemented in the exact muffin-tin orbitals method whether alloying FeNi with a suitable element can have a positive impact on the phase formation and ordering properties while largely maintaining its attractive intrinsic magnetic properties. We find that small amount of non-magnetic (Al and Ti) or magnetic (Cr and Co) elements increase the order–disorder transition temperature. Adding Mo to the Co-doped system further enhances the ordering temperature while the Curie temperature is decreased only by a few degrees. Our results show that alloying is a viable route to stabilizing the ordered tetragonal phase of FeNi.

Increased Order–Disorder Transition Temperature for a Rod–Coil Block Copolymer in the Presence of a Magnetic Field

2011 ◽  
Vol 44 (19) ◽  
pp. 7503-7507 ◽  
Author(s):  
Bryan McCulloch ◽  
Giuseppe Portale ◽  
Wim Bras ◽  
Rachel A. Segalman
Keyword(s):  
Magnetic Field ◽  
Transition Temperature ◽  
Block Copolymer ◽  
Disorder Transition ◽  
Disorder Transition Temperature

scholarly journals Influence of the Magnetic State on the Chemical Order-Disorder Transition Temperature in Fe-Ni Permalloy

2010 ◽  
Vol 105 (16) ◽  
Author(s):  
M. Ekholm ◽  
H. Zapolsky ◽  
A. V. Ruban ◽  
I. Vernyhora ◽  
D. Ledue ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Magnetic State ◽  
Chemical Order ◽  
Disorder Transition ◽  
Disorder Transition Temperature

Surface segregation on Fe3Al(110) near the order-disorder transition temperature

1992 ◽  
Vol 269-270 ◽  
pp. 1142-1146 ◽  
Author(s):  
D. Voges ◽  
E. Taglauer ◽  
H. Dosch ◽  
J. Peisl
Keyword(s):  
Transition Temperature ◽  
Surface Segregation ◽  
Disorder Transition ◽  
Disorder Transition Temperature

Self-diffusion of an asymmetric diblock copolymer above and below the order-to-disorder transition temperature

1999 ◽  
Vol 111 (6) ◽  
pp. 2789-2796 ◽  
Author(s):  
Gerald Fleischer ◽  
Frank Rittig ◽  
Jörg Kärger ◽  
Christine M. Papadakis ◽  
Kell Mortensen ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Diblock Copolymer ◽  
Disorder Transition ◽  
Self Diffusion ◽  
Disorder Transition Temperature

scholarly journals Pressure Dependence of the CsCl-Type Order-Disorder Transition Temperature of δ-VMn Alloy

1975 ◽  
Vol 16 (8) ◽  
pp. 481-488 ◽  
Author(s):  
Tomoo Suzuki ◽  
Masuo Hagiwara ◽  
Minoru Akaishi ◽  
Shinroku Saito
Keyword(s):  
Transition Temperature ◽  
Pressure Dependence ◽  
Disorder Transition ◽  
Cscl Type ◽  
Disorder Transition Temperature
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