MAGNETIC PROPERTIES OF Ti-Co SOLID SOLUTIONS

1999 ◽  
Vol 13 (08) ◽  
pp. 233-238
Author(s):  
IULIU POP ◽  
OLIVIA POP

Thermal variation of the magnetic susceptibility for Ti-Co solid solutions is reported. Cobalt, by alloying acts on the transition Néel temperature giving rise to a complicated magnetic phase diagram. The change of the Fermi level is the main mechanism in the critical temperature, T N , shift.

1993 ◽  
Vol 07 (01n03) ◽  
pp. 867-870 ◽  
Author(s):  
H. SHIRAISHI ◽  
T. HORI ◽  
Y. YAMAGUCHI ◽  
S. FUNAHASHI ◽  
K. KANEMATSU

The magnetic susceptibility measurements have been made on antiferromagnetic compounds Mn1–xFexSn2 and the magnetic phase diagram was illustrated. The high temperature magnetic phases I and III, major phases, were analyzed on the basis of molecular field theory and explained the change of magnetic structure I⇌III occured at x≈0.8.


2010 ◽  
Vol 24 (31) ◽  
pp. 6157-6163
Author(s):  
RACHID MASROUR ◽  
MOHAMED HAMEDOUN ◽  
ABDELILAH BENYOUSSEF

The ferrimagnetic spinels systems Co x Fe 1-x Cr 2 S 4 has been studied by high-temperature series expansions method in the range 0 ≤x ≤1. The exchange interactions and exchange energies are calculated by using the probability law. The high-temperature series expansions have been applied in the spinels systems Co x Fe 1-x Cr 2 S 4, combined with the Padé approximants method, to determine the magnetic phase diagram, i.e., TC versus dilution x. The critical exponent associated with the magnetic susceptibility (γ) is deduced.


2009 ◽  
Vol 152-153 ◽  
pp. 45-48 ◽  
Author(s):  
A.V. Bogach ◽  
S.V. Demishev ◽  
K. Flachbart ◽  
S. Gabani ◽  
V.V. Glushkov ◽  
...  

High precision measurements of magnetoresistance =f(T,H) and magnetization M(T,H) have been carried out on single crystals of rare earth dodecaboride TmB12 at temperatures 1.8–30 K in magnetic fields up to 80 kOe. The high accuracy measurements and precise temperature stabilization allowed us to perform numerical differentiation and analyze quantitatively a behavior of derivative d()/dH=f(T,H) and magnetic susceptibility (T,H)=dM/dH in paramagnetic and magnetically ordered phases of thulium dodecaboride. It was shown that negative magnetoresistance anomalies observed in present study in paramagnetic state of TmB12 can be consistently interpreted in frameworks of a simple relation between resistivity and magnetization - /M2 proposed by K. Yosida (Phys. Rev., 107, 396 (1957)). A local magnetic susceptibility loc(T,H)=(1/H(d(/)/dH))1/2 was deduced directly from the magnetoresistance measurements and compared with bulk susceptibility (T,H)=dM/dH results of the present study. Moreover, the susceptibility dependences loc(T,H) and (T,H) have been applied to analyze in detail the H-T magnetic phase diagram of TmB12.


1988 ◽  
Vol 153-155 ◽  
pp. 761-762 ◽  
Author(s):  
N. Nishida ◽  
H. Miyatake ◽  
D. Shimada ◽  
S. Okuma ◽  
T. Yamazaki ◽  
...  

2013 ◽  
Vol 204 ◽  
pp. 123-127 ◽  
Author(s):  
T.G. Aminov ◽  
D.I. Kirdyankin ◽  
G.G. Shabunina ◽  
V.M. Novotortsev

2005 ◽  
Vol 362 (1-4) ◽  
pp. 18-28 ◽  
Author(s):  
G.C. DeFotis ◽  
J.J. Christophel ◽  
D.K. Havey ◽  
M.L. Laccheo ◽  
S.D. Kosovych ◽  
...  

2013 ◽  
Vol 27 (20) ◽  
pp. 1350144
Author(s):  
A. C. NASCIMENTO ◽  
ANDRE M. C. SOUZA

In this paper, a complete investigation of the magnetic properties of the Hubbard model on the AB2 chain is presented. We evaluate the magnetic phase diagram as a function of the electron–electron interaction and band filling by using the Green's function method within the Hartree–Fock approximation. Our results are in agreement with Lieb's theorem and the system shows ferromagnetic, ferrimagnetic, and paramagnetic phases.


Sign in / Sign up

Export Citation Format

Share Document