Refine your search:     
Report No.
 - 
Search Results: Records 1-20 displayed on this page of 75

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Crystal structures and phase stability of antiferroelectric $$R$$ phases in undoped and Ca-modified sodium niobates

Aso, Seiyu*; Matsuo, Hiroki*; Yoneda, Yasuhiro; Morikawa, Daisuke*; Tsuda, Kenji*; Oyama, Kenji*; Ishigaki, Toru*; Noguchi, Yuji*

Physical Review B, 111(17), p.174114_1 - 174114_12, 2025/05

We investigate the crystal structures, phase transitions, and phase stability of undoped and Ca-modified NaNbO$$_{3}$$ through a combined analysis of high-resolution synchrotron radiation X-ray and neutron diffraction, convergent-beam electron diffraction, and density functional theory (DFT) calculations. It is demonstrated that the antiferroelectric (AFE)-$$R$$ phase is stabilized over a wide temperature range of 200 to 800 K by Ca modification, and that the NaNbO$$_3$$ is stabilized by temperature-driven isostatic pressure accompanied by lattice expansion, whereas the Ca-modified NaNbO$$_3$$ is induced by composition-induced chemical pressure along with lattice shrinkage.

Journal Articles

Existence of local polar domains in perovskite oxyfluoride, BaFeO$$_2$$F

Katsumata, Tetsuhiro*; Suzuki, Ryo*; Sato, Naoto*; Oda, Ryoya*; Motoyama, Shingo*; Suzuki, Shumpei*; Nakashima, Mamoru*; Inaguma, Yoshiyuki*; Mori, Daisuke*; Aimi, Akihisa*; et al.

Chemistry of Materials, 36(8), p.3697 - 3704, 2024/04

 Times Cited Count:1 Percentile:35.94(Chemistry, Physical)

A perovskite-type oxynitride BaFeO$$_2$$F was prepared by high-pressure synthesis. Since the SHG signal was observed in the obtained material, suggesting the existence of spontaneous polarization, the mechanism of polarization was investigated by synchrotron high-energy X-ray diffraction. The obtained pair distribution functions were fitted, and a local polarization mechanism with different orientations was found. Since BaFeO$$_2$$F is also a magnetic material, a magnetic domain and a ferroelectric domain are considered to coexist.

Journal Articles

Defect-induced phase separation in relaxor Pb(In$$_{1/2}$$Nb$$_{1/2}$$)O$$_3$$ crystals

Yoneda, Yasuhiro; Matsumoto, Norimasa; Terauchi, Hikaru*; Yasuda, Naohiko*

Journal of Physics; Condensed Matter, 15(3), p.467 - 474, 2003/01

 Times Cited Count:6 Percentile:34.90(Physics, Condensed Matter)

Thermal properties of ordered and disordered Pb(In$$_{1/2}$$Nb$$_{1/2}$$)O$$_3$$ (PIN) single clystals were investigated. The defect-induced phase separation provided a good agreement of the instability of the relaxor nd antiferroelectric states of the PIN crystals.

Journal Articles

X-ray study on phase transitions in ferroelectric Rb$$_{2}$$CoX$$_{4}$$(X=Cl or Br) crystal

; ; ;

Journal of the Physical Society of Japan, 56(2), p.831 - 832, 1987/02

 Times Cited Count:23 Percentile:97.70(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Phase transitions and dielectric properties of some monoclinic A$$_{2}$$XY$$_{4}$$ crystals; Rb$$_{2}$$ZnI$$_{4}$$,Tl$$_{2}$$ZnI$$_{4}$$,and Cs$$_{2}$$HgI$$_{4}$$

Japanese Journal of Applied Physics, 24(SUPPL.24-2), p.387 - 389, 1985/00

 Times Cited Count:110 Percentile:96.23(Physics, Applied)

no abstracts in English

Journal Articles

Quasi-static D-E hysteresis loops on SC(NH$$_{2}$$)$$_{2}$$ and SC(ND$$_{2}$$)$$_{2}$$ at the phase transition regions

; ; ; ; ;

Japanese Journal of Applied Physics, 24(SUPPL.24-2), p.844 - 846, 1985/00

no abstracts in English

Journal Articles

Ferroelectricity in Tl$$_{2}$$ZnI$$_{4}$$

Journal of the Physical Society of Japan, 54(10), p.3694 - 3696, 1985/00

 Times Cited Count:35 Percentile:90.61(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Effect of hydrostatic pressure on the antiferroelectric phase transitions in ammonium dihydrogen arsenate NH$$_{4}$$H$$_{2}$$AsO$$_{4}$$ and deuterated analogue

; Ozawa, K.

Journal of the Physical Society of Japan, 53(12), p.4405 - 4412, 1984/00

 Times Cited Count:7 Percentile:59.45(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Neutron scattering study on the normal-incommensurate phase transition in K$$_{2}$$ZnCl$$_{4}$$

;

Journal of the Physical Society of Japan, 53(12), p.4271 - 4278, 1984/00

 Times Cited Count:31 Percentile:85.30(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

X-ray diffraction study on the incommensurate-commensurate phase transition in{N(CD$$_{3}$$)$$_{4}$$}$$_{2}$$CoCl$$_{4}$$

; ; ;

Journal of the Physical Society of Japan, 53(5), p.1863 - 1865, 1984/00

 Times Cited Count:5 Percentile:52.42(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Reinvestigation of pressure-induced III-III transitions in ferroelectric Ca$$_{2}$$Sr(C$$_{2}$$H$$_{5}$$COO)$$_{6}$$ and Ca$$_{2}$$Pb(C$$_{2}$$H$$_{5}$$COO)$$_{6}$$

Journal of the Physical Society of Japan, 53(5), p.1602 - 1605, 1984/00

 Times Cited Count:9 Percentile:70.48(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Pregion of{N(CH$$_{3}$$)$$_{4}$$}$$_{2}$$FeCl$$_{4}$$ in the pressure-temperature phase space

Journal of the Physical Society of Japan, 52(10), p.3322 - 3324, 1983/00

 Times Cited Count:10 Percentile:79.50(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Effect of hydrostatic pressure on the phase transitions in monoclinic and tetragonal RbD$$_{2}$$PO$$_{4}$$ crystals

; Ozawa, K.; ;

Journal of the Physical Society of Japan, 52(7), p.2538 - 2543, 1983/00

 Times Cited Count:23 Percentile:81.52(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Pressure-induced ferroelectricity in {N(CD$$_{3}$$)$$_{4}$$}$$_{2}$$ZnCl$$_{4}$$

Journal of the Physical Society of Japan, 51(4), p.1043 - 1044, 1982/00

 Times Cited Count:27 Percentile:90.70(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Effect of low bias electric field on the ferroelectric, III; Phase in normal and deuterated thiourea

Journal of the Physical Society of Japan, 51(3), p.701 - 702, 1982/00

 Times Cited Count:12 Percentile:77.79(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Phase transitions and ferroelectricity in {N(CH$$_{3}$$)$$_{4}$$}$$_{2}$$XBr$$_{4}$$(X:Zn,Co,Cu)

Journal of the Physical Society of Japan, 51(1), p.203 - 207, 1982/00

 Times Cited Count:94 Percentile:95.56(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Effect of hydrostatic pressure on the phase transitions in ferroelectric{N(CD$$_{3}$$)$$_{4}$$}$$_{2}$$CoCl$$_{4}$$

Journal of the Physical Society of Japan, 51(7), p.2051 - 2052, 1982/00

 Times Cited Count:17 Percentile:83.95(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Phase transitions in{N(CD$$_{3}$$)$$_{4}$$}$$_{2}$$XCl$$_{4}$$(X:Zn,Co,Cu)

Journal of the Physical Society of Japan, 51(8), p.2532 - 2537, 1982/00

 Times Cited Count:37 Percentile:87.96(Physics, Multidisciplinary)

no abstracts in English

75 (Records 1-20 displayed on this page)