Magnetization and magneto-transport staircaselike behavior in layered perovskite Sr2CoO4 at low temperature.

作者: Qiuhang Li , Xueping Yuan , Lei Xing , Mingxiang Xu

DOI: 10.1038/SREP27712

关键词:

摘要: Polycrystalline layered perovskite Sr2CoO4 sample was synthesized by high temperature and pressure method. The staircaselike behavior has been observed in the magnetization resistivity versus field curves of at low temperature. main features steps can be obtained from measured results: (i) positions external magnetic which occur are varying different measurement runs, (ii) only appear disappear with a slight increase temperature, (iii) dependent on sweep rate. Based magneto-transport Sr2CoO4, unusual phenomenon ascribed to an avalanche flipping domains terms random theory.

参考文章(43)
J. R. Iglesias, J. I. Espeso, N. Marcano, J. C. Gómez Sal, Cluster model with random anisotropy for hysteresis jumps in CeNi1-xCux alloys Physical Review B. ,vol. 79, pp. 195128- ,(2009) , 10.1103/PHYSREVB.79.195128
Ikuto Kawasaki, Daichi Nishikawa, Hiroyuki Hidaka, Tatsuya Yanagisawa, Kenichi Tenya, Makoto Yokoyama, Hiroshi Amitsuka, Magnetic properties around quantum critical point of CePt1-xRhx Physica B-condensed Matter. ,vol. 404, pp. 2908- 2911 ,(2009) , 10.1016/J.PHYSB.2009.07.139
QW Yao, XL Wang, ZX Cheng, Germanas Peleckis, SX Dou, R Nigam, GP Zhao, None, Band structures, and magnetic and transport properties of La doped two dimensional Sr2CoO4 Journal of Applied Physics. ,vol. 101, ,(2007) , 10.1063/1.2714196
W. E. Pickett, K.-W. Lee, Correlation effects in the high formal oxidation-state compoundSr2CoO4 Physical Review B. ,vol. 73, pp. 174428- ,(2006) , 10.1103/PHYSREVB.73.174428
XL Wang, E Takayama-Muromachi, None, Magnetic and transport properties of the layered perovskite systemSr2−yYyCoO4(0⩽y⩽1) Physical Review B. ,vol. 72, pp. 064401- ,(2005) , 10.1103/PHYSREVB.72.064401
Mingxiang Xu, Sarkarainadar Balamurugan, Eiji Takayama-Muromachi, Magnetic and Transport Properties and Spin States of Layered Cobalt Oxides Sr2-xHoxCoO4(0≤x≤1.0) Progress of Theoretical Physics Supplement. ,vol. 159, pp. 349- 354 ,(2005) , 10.1143/PTPS.159.349
R. Ferré, B. Barbara, Magnetisation studies of disordered systems: Importance of adiabaticity in non-equilibrium processes Journal of Magnetism and Magnetic Materials. ,vol. 140, pp. 1861- 1862 ,(1995) , 10.1016/0304-8853(94)00637-7
Pankaj K. Pandey, R. J. Choudhary, D. M. Phase, Anomalous temperature dependence in valence band spectra: A resonant photoemission study of layered perovskite Sr2CoO4 Applied Physics Letters. ,vol. 104, pp. 182409- ,(2014) , 10.1063/1.4876058