期刊文献+

双层锰氧化物Nd_(1.2)Sr_(1.8)Mn_2O_7的相分离研究 被引量:6

Phase Separation of Bilayer Manganite Nd_(1.2)Sr_(1.8)Mn_2O_7 Polycrystalline
原文传递
导出
摘要 通过固相反应法制备成了多晶样品Nd1.2Sr1.8Mn2O7,利用XRD和SQUID研究了样品的结构和磁性。研究结果表明,该样品的单相性很好,单相结构为Sr3Ti2O7四角形结构(14/mmm)。磁性测量表明,温度高于居里温度(TC=265K),样品呈现出顺磁性,随着温度的降低出现了顺磁-铁磁的转变,铁磁与反铁磁两相共存,温度低于50 K时铁磁逐渐消失,直到完全变为反铁磁。 Polycrystalline sample Nd1.2 Sr1.8 Mn207 was prepared by conventional solid state reaction method. The structure and magnetic properties have been studied with X - ray diffraction patterns and SQUID. The result indicated the sample shows no any asymmetry and no any trace of secondary phase. When the temperature is higher than Curie point(Tc =265 K) , the sample presents paramagnetic behavior. With the decrease of temperature, Ndl.2 Sr,.8 Mn2 07 undergoes the transform of paramagnetism to ferromagnetism. When the temperature is under 50 K,ferromagnctism disappears gradually and the sample exhibits antimagnetism entirely.
出处 《稀土》 EI CAS CSCD 北大核心 2011年第3期86-88,共3页 Chinese Rare Earths
基金 国家自然科学基金(11064008 50862007) 内蒙古自然科学基金(2009MS0101) 内蒙古高校科研项目(NJ10163)
关键词 锰氧化物 相分离 电荷有序 晶格畸变 bilayer manganite phase separation charge ordering lattice distortion
  • 相关文献

参考文献8

  • 1Jin. s, Teifel T H, McCormack M, et al. Thousandfold change in resistivity in magnetoresistive La-Ca-Mn-O films[J]. Sience, 1994, 264(5157) :413.
  • 2Ravindran P, Vidya R, et al. Electronic Structure and Excited - state Properties of Perovskitc - like Oxides [ J ]. Journal of Crystal Growth, 2004, 268 : 554-559.
  • 3Joonghoe Dho, W S Kim, N H Hur. Relaxorlike spin-glass phase in the layered manganite ( La0.8 Gd0.2 )1.4 Sr1.6 Mn2O7 [ J ]. Phys Rev B 2002, 65 : 24404.
  • 4Y Tomioka, H Kuwahara, A Asamitsu, et al. Interplane Tunneling Magnetoresistance in a Layered Manganite Crystal[J]. Science 1996, 274: 1698.
  • 5Perring T G, Aeppli Mofitomo G Y,Tokura Y. Antiferro- magnetic Short Range Order in a Two - Dimensional Man- ganite Exhibiting Giant Magnetoresistance [ J ]. Phys Rev Lett 1997. 78: 3197.
  • 6邢茹,鲁毅,赵建军,郑琳.稀土锰氧化物Nd_(0.5)Sr_(0.4)Ca_(0.1)MnO_3的磁性研究[J].稀土,2009,30(6):64-66. 被引量:2
  • 7Kubota M, Fujioka H, Hirota K, et al. Relation between Crystal and Magnetic Structures of Layered Manganite La2-2xSr1+2x Mn2P7(0.30≤x≤<0.50) [J]. Phys Soc Jpn,2000,69 : 1606-1609.
  • 8赵建军,鲁毅,邢茹,金香,郑琳,樊宝元.掺杂Nd的锰氧化物Nd_(0.5)Sr_(0.3)Ba_(0.2)MnO_3的电子自旋共振研究[J].稀土,2008,29(6):41-44. 被引量:3

二级参考文献20

  • 1Jin S, Teifel T H, Mccormack M, et al. Thousandfold change in resistivity in magnetoresistive La- Ca- Mn- O films [J]. Science, 1994,264(5157) : 413-415.
  • 2Autret C, Gervais M, Gervais F, et al. Signature of ferromagnetism, antiferromagnetism, charge ordering and phase separation by electron paramagnetic resonance study in rare earth manganites, Ln1-xAx MnO3 ( Ln = rare earth, A = Ca, Sr ) [ J ]. Solid State Science,2004, (6) : 815-824.
  • 3Lu Yi, Li Qing- An A, Di Nai - Li, et al. Magnetic properties of Ndo.5 Pb0.5x Srx MnO3 materials [ J ] . Chin Phys, 2003, (12) : 1301-1304.
  • 4Yang Ren - Fu, Sun Young, He Wei, et al. Observation of a Griffiths - hke phase in bilayered manganites [ J ]. Appl Phys Lett, 2007,90(3 ) : 032502.1-032502.3.
  • 5Lambert C A, Gervais M, Gervais F, et al. Role of Y and Ba doping on phase separation and magnetization steps in Nd0.5 Sr0.5MnO3 by electron spin resonance[J]. Solid State Science,2005, (7) : 1035-1042.
  • 6Shengelaya A,Zhao G M, Keller H, et al. EPR in La1-xCax MnO3 : relaxation and bottleneck[ J]. Phys Rev B, 2000, 61 : 5888-5890.
  • 7Angappane S, Pattabiraman M, Rangarajan G, et al. Electron spin resonance study of Nd0.7Sr0.3MnO3 single crystals [J]. J Appl Phys,2005,97(3) : 10H705.1-10H705.3.
  • 8Fan Ji - Yu, Ying Yue, Pi Li, et al. Evidence for instability in charge ordering Nd0.5Sr0.5MnO3 [J]. Solid State Communications, 2007, (141) : 141-144.
  • 9lvanshin V A, Deisenhofer J, Krug yon Nidda H A, et al. ESR study in lightly doped L1-xSrxMnO3[J]. Phys Rev B,2000, 61 : 6213-6219.
  • 10Angappane S, Pattabiraman M, Rangarajan G, et al. Electron magnetic resonance study in a single crystal of the colossal magnetoresistance manganite Nd0.5 Sr0.5 MnO3 [ J ]. Phys Rev B, 2004,69(9 ) : 094437.1-094437.8.

共引文献3

同被引文献48

引证文献6

二级引证文献7

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部