Spin State and Magnetic Properties of Nd1-xSrxCoO3 (0.1≤x≤0.5)

2013 ◽  
Vol 785-786 ◽  
pp. 676-679
Author(s):  
Yi Yun Yang
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Spin State ◽  
State Transition ◽  
Solid State Reaction Method ◽  
Experimental Result ◽  
Conventional Solid State Reaction ◽  
Reaction Method ◽  
Spin State Transition ◽  
Intermediate Spin

In this paper, the rare earth cobaltite Nd1-xSrxCoO3 (0.1≤x≤0.5) samples were prepared using conventional solid state reaction method. Magnetization and spin state of cobalt of sample were systematically investigated. The experimental result suggests that magnetization and the Curie temperature increase sharply with increasing Sr content. The Curie-Weiss fit shows that most of the Co3+ ions are in the intermediate spin state and the Co4+ ions are in low spin for x=0.5. Furthermore, our study confirms that spin-state transition take place in Nd1-xSrxCoO3.

Spin-state transition and microscopic magnetic properties of LaCoO3

1997 ◽  
Vol 230-232 ◽  
pp. 756-758 ◽  
Author(s):  
Masayuki Itoh ◽  
Masami Mori ◽  
Masaru Sugahara ◽  
Touru Yamauchi ◽  
Yutaka Ueda
Keyword(s):  
Magnetic Properties ◽  
Spin State ◽  
State Transition ◽  
Spin State Transition

Effect of Gd Substitution on the Dielectric Properties and Magnetoelectric Effect of BiFeO3

2010 ◽  
Vol 150-151 ◽  
pp. 1470-1475
Author(s):  
Gui Lin Song ◽  
Tian Xing Wang ◽  
Cun Jun Xia ◽  
Chao Li ◽  
Fang Gao Chang
Keyword(s):  
Dielectric Constant ◽  
Rare Earth ◽  
Dielectric Loss ◽  
Room Temperature ◽  
Magnetoelectric Effect ◽  
Solid State Reaction Method ◽  
Impurity Phase ◽  
Conventional Solid State Reaction ◽  
Reaction Method ◽  
Dielectric Relaxation Process

Multiferroic Bi1-xGdxFeO3(x=0, 0.05, 0.1, 0.15, 0.2) ceramics were prepared by conventional solid state reaction method. For all the samples prepared, they exhibit magnetoelectric effect at room temperature, and the dielectric constant and dielectric loss decrease with increasing frequency in the range from 10000Hz to 1 MHz from a typical orientational dielectric relaxation process. It has been found that both dielectric constant and dielectric loss are strongly dependent on the Gd3+ content. And substitution of Bi with rare earth Gd helps to eliminate the impurity phase in BiFeO3 ceramics.,

Cluster Glass Behavior of Doped Cobaltite Nd0.80Sr0.20CoO3

2011 ◽  
Vol 413 ◽  
pp. 524-528
Author(s):  
Yi Yun Yang
Keyword(s):  
Glass Transition ◽  
Rare Earth ◽  
Transition Temperature ◽  
Spontaneous Magnetization ◽  
Ac Susceptibility ◽  
Solid State Reaction Method ◽  
Conventional Solid State Reaction ◽  
Reaction Method ◽  
Dc Magnetization ◽  
Glass Behavior

In this paper, the rare earth cobaltite Nd0.80Sr0.20CoO3sample was prepared using conventional solid state reaction method. The dc magnetization, ac susceptibility, hysteresis loop of polycrystalline Nd0.80Sr0.20CoO3sample was carried out using the physical properties measurement system of Quantum Design. A dynamic analysis of ac susceptibility implies cluster glass transition temperatureTSG=72.06 K which occurs much higher by 25 K than that point at which the dc magnetization reaches a maximum. The cluster glass behavior of polycrystalline Nd0.80Sr0.20CoO3sample, which originates from the phase separation at low temperature, was systematically investigated in this paper. It was found that the sample has a small spontaneous magnetization and the weak frequency dependent peak so that we assume that the sample is cluster-glass.

Dielectric Properties of Rare Earth Cobaltates, LnCoO3(Ln ═ La, Pr, Nd), Across the Spin-State Transition

2004 ◽  
Vol 306 (1) ◽  
pp. 227-234 ◽  
Author(s):  
L. SUDHEENDRA ◽  
MOTIN SEIKH ◽  
A. R. RAJU ◽  
CHANDRABHAS NARAYANA ◽  
C. N. R. RAO
Keyword(s):  
Rare Earth ◽  
Dielectric Properties ◽  
Spin State ◽  
State Transition ◽  
Spin State Transition

Magnetic properties and spin state transition of La0.7Ca0.3(Co1−yGay)O3

2010 ◽  
Vol 107 (12) ◽  
pp. 123913 ◽  
Author(s):  
Zhi-min Wu ◽  
Chun-yang Kong ◽  
Xin-qiang Wang ◽  
Fang-wei Wang
Keyword(s):  
Magnetic Properties ◽  
Spin State ◽  
State Transition ◽  
Spin State Transition

Magnetic Properties and Spin State Transition of Gallium Doped Perovskite Cobaltite Oxide

2007 ◽  
Vol 24 (11) ◽  
pp. 3249-3252 ◽  
Author(s):  
Wu Zhi-Min ◽  
Wang Xin-Qiang ◽  
Wang Fang-Wei
Keyword(s):  
Magnetic Properties ◽  
Spin State ◽  
State Transition ◽  
Spin State Transition

scholarly journals Study the structural and magnetic properties of rare-earth ions (La and Gd) doped Ba0.9575Ca0.0025Ti0.80685Mn0.002475Nb0.002475Zr0.1782O3 (BCTMNZ) ceramics

2015 ◽  
Vol 05 (04) ◽  
pp. 1520001 ◽  
Author(s):  
Radheshyam Rai ◽  
Poonam Kumari ◽  
M. A. Valente
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Hysteresis Loops ◽  
Solid State Reaction Method ◽  
Rare Earth Ions ◽  
Temperature Hysteresis ◽  
X Ray Diffraction ◽  
Conventional Solid State Reaction ◽  
Structural And Magnetic Properties ◽  
La Doped

In this paper, we investigated the influence of rare earth ([Formula: see text] and Gd) doped Ba[Formula: see text]RE[Formula: see text]Ca[Formula: see text]Ti[Formula: see text] Mn[Formula: see text]Nb[Formula: see text]Zr[Formula: see text]O3 (BCTMNZ) ceramics were fabricated by using a conventional solid-state reaction method. The doping effects of La and Gd on the structural and magnetic properties were studied. The structural pattern of the ceramic samples were investigated by X-ray diffraction and the results indicated that both samples shows an orthorhombic structure with pure phase. Strain and crystalline size values for Gd and La doped were 0.31–0.33% and [Formula: see text]–[Formula: see text]m, respectively. The room temperature hysteresis loops were obtained by using a vibrating sample magnetometer. La doped ceramic showed the higher value of magnetization i.e., [Formula: see text]B/f.u. as compared to Gd doped BLTMNZ ceramics.

scholarly journals Evidence for a low-spin to intermediate-spin state transition inLaCoO3

2002 ◽  
Vol 66 (2) ◽  
Author(s):  
C. Zobel ◽  
M. Kriener ◽  
D. Bruns ◽  
J. Baier ◽  
M. Grüninger ◽  
...  
Keyword(s):  
Spin State ◽  
State Transition ◽  
Spin State Transition ◽  
Intermediate Spin ◽  
Intermediate Spin State
Sign in / Sign up

Export Citation Format

Share Document