NMR Study of (Sr;Ba;La) 2 Fe 1+y Mo 1¡y O 6 Double Perovskites
作者： D. Zając , Cz. Kapusta , P.C. Riedi , M. Sikora , C.J. Oates
DOI: 10.12693/APHYSPOLA.106.759
关键词:
摘要: The 95 Mo and 97 NMR spin-echo study of (Sr,Ba,La)2Fe1+yMo1iyO6 double perovskites is reported. Powder samples Ba1:44Sr0:36La0:2FeMoO6 (Ba0:8Sr0:2)2i2xLax#xFe1+yMo1iyO6, where # denotes vacancies, for: x = 0; y 0:1; 0:2 0:3; 0 were measured at 4.2 K no applied magnetic fleld. signals are observed 55{100 MHz for the main line 30{55 low-frequency satellite. satellite attributed to ideal defect positions atoms. La vacancy doping introduce more defects, however, increasing Fe/Mo ratio decreases amount sites. causes a pattern high frequency side spectrum, which related difierent numbers next neighbours. efiect an increase in electron density corresponding moment adjacent sites reveals local character doping.
harvard.edu
sci-hub.st 参考文章(12)
Naoki Kobayashi, Kiwamu Nishida, Continuous excitation of planetary free oscillations by atmospheric disturbances Nature. ,vol. 395, pp. 357- 360 ,(1998) , 10.1038/26427
J. M. Greneche, M. Venkatesan, R. Suryanarayanan, J. M. D. Coey, Mössbauer spectrometry ofA2FeMoO6(A=Ca,Sr,Ba): Search for antiphase domains Physical Review B. ,vol. 63, pp. 174403- ,(2001) , 10.1103/PHYSREVB.63.174403
C Ritter, M R Ibarra, L Morellon, J Blasco, J García, J M De Teresa, Structural and magnetic properties of double perovskites AA'FeMoO6 (AA' = Ba2, BaSr, Sr2 and Ca2) Journal of Physics: Condensed Matter. ,vol. 12, pp. 8295- 8308 ,(2000) , 10.1088/0953-8984/12/38/306
S. Kambe, Y. Homma, Y. Tokunaga, H. Sakai, D. Aoki, E. Yamamoto, A. Nakamura, Y. Shiokawa, R.E. Walstedt, NMR study of NpFeGa5 Physica B-condensed Matter. ,vol. 359, pp. 1072- 1074 ,(2005) , 10.1016/J.PHYSB.2005.01.290
J. Navarro, J. Nogués, J. S. Muñoz, J. Fontcuberta, Antisites and electron-doping effects on the magnetic transition of Sr 2 FeMoO 6 double perovskite Physical Review B. ,vol. 67, pp. 174416- ,(2003) , 10.1103/PHYSREVB.67.174416
M Besse, V Cros, A Barthélémy, H Jaffrès, J Vogel, F Petroff, A Mirone, A Tagliaferri, P Bencok, P Decorse, P Berthet, Z Szotek, W. M Temmerman, S. S Dhesi, N. B Brookes, A Rogalev, A Fert, Experimental evidence of the ferrimagnetic ground state of Sr2FeMoO6 probed by X-ray magnetic circular dichroism EPL. ,vol. 60, pp. 608- 614 ,(2002) , 10.1209/EPL/I2002-00262-4
W.Y Lee, H Han, S.B Kim, C.S Kim, B.W Lee, Some effects of Fe/Mo disorder in double perovskite Ba2Fe1+xMo1−xO6 Journal of Magnetism and Magnetic Materials. ,vol. 254, pp. 577- 579 ,(2003) , 10.1016/S0304-8853(02)00902-2
J S Lord, P C Riedi, A swept frequency pulsed magnetic resonance spectrometer with particular application to NMR of ferromagnetic materials Measurement Science and Technology. ,vol. 6, pp. 149- 155 ,(1995) , 10.1088/0957-0233/6/2/003
Cz. Kapusta, P.C. Riedi, D. Zajac, M. Sikora, J.M. De Teresa, L. Morellon, M.R. Ibarra, NMR study of double perovskite Sr2FeMoO6 Journal of Magnetism and Magnetic Materials. ,vol. 242, pp. 701- 703 ,(2002) , 10.1016/S0304-8853(01)00998-2
J. Lindén, M. Karppinen, T. Shimada, Y. Yasukawa, H. Yamauchi, Observation of antiphase boundaries in Sr 2 FeMoO 6 Physical Review B. ,vol. 68, pp. 174415- ,(2003) , 10.1103/PHYSREVB.68.174415