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The influence of V doping at Mn site on charge order and spin order of La0.3Ca0.7MnO3 system has been studied by the measurement of magnetization-temperature (M-T) curves,resistivity-temperature (ρ-T) curves and electron spin resonance (ESR) spectra of samples La0.3Ca0.7Mn1－xVxO3 (x=0.05,0.10,0.134,0.20).The results show that, when 0.05≤3≤0.134,charge ordering (CO) phase exists in the system,and the spin order of the system exhibits the serial changes of paramagnetism (PM)—charge ordering (CO)—antiferromagnetism (AFM) with the decrease of temperature.When x=0.20,the charge ordering melts,and the system exhibits second-entering-type spin glass behavior.
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Keywords:
- charge ordering /
- spin order /
- phase separation /
- second-entering-type spin glass behavior
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[14] Yu J,Zhang J C,Cao G X 2006 Acta Phys.Sin.55 1914 (in Chinese) [俞 坚、张金仓、曹桂新 2006 55 1914]
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[16] Cao S X,Gao K,Kang B J,Shu M M,Yu L M,Yuan S J,Zhang J C 2009 Acta Phys.Sin. 58 3309 (in Chinese) [曹世勋、高 湉、康保娟、舒苗苗、郁黎明、袁淑娟、张金仓 2009 58 3309]
[17] Cheng X W,Gao Y Z,Li X,Liu Y,Long X,Yu Z 2009 Acta Phys.Sin. 58 2018 (in Chinese) [程兴旺、高院玲、李 祥、刘 颖、龙 雪、于 宙 2009 58 2018]
[18] Li X J,Wang Q 2009 Acta Phys.Sin. 58 6482 (in Chinese) [李晓娟、王 强 2009 58 6482]
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[1] Venimadhav A,Hedge M S,Prasad V,Subramanyam S V2000 J. Phys. 33D 2921
[2] Kida N,Tonouchi M 2001 Appl. Phys. Lett. 78 115
[3] Mori S,Chen C H,Cheong S W 1998 Nuture 392 473
[4] Ibarra M R,de Teresa J M,Blasco J 1997 J. Phys. Rev. 56B 8252
[5] Fernandez-Diaz M T,Martinez J L,Alonso J M 1999 Phys. Rev. 59B 1277
[6] Ramarez A P,Schiffer P,Cheong S W 1996 Phys. Rev. Lett. 76 3188
[7] Raveau B,Maignan A,Martin C 1997 J. Solid State Chem. 130 162
[8] Vanitha P V,Arulraj A,Raju A R 1999 Acad C. R.Sci. Ser.Ⅱ b: Mec.,Phys.,Chim Astron 2 595
[9] Vanitha P V,Singh R S,Natarajan S 1998 J. Solid State Chem. 137 365
[10] Maignan A,Damay F,Barnabe A 1998 Philos.Trans.R.Soc.London A356 1635
[11] Guo H Y,Liu N,Cai Z R,Zhang Y H 2006 Acta Phys.Sin.55 865 (in Chinese) [郭焕银、刘 宁、蔡之让、张裕恒 2006 物 〖12] Wollan E O,Koehler W C 1955 Phys.Rev. 100 545
[12] Mydosh J A 1993 Spin Glass: An Experimental Introduction (London: Taylor and Francis)
[13] Liu N,Yan G Q,Cai Z R 2006 Chin.Sci.Bull. 51 770
[14] Yu J,Zhang J C,Cao G X 2006 Acta Phys.Sin.55 1914 (in Chinese) [俞 坚、张金仓、曹桂新 2006 55 1914]
[15] Wang S P,Zhang J C,Cao G X 2006 Acta Phys.Sin. 55 367 (in Chinese) [王仕鹏、张金仓、曹桂新 2006 55 367]
[16] Cao S X,Gao K,Kang B J,Shu M M,Yu L M,Yuan S J,Zhang J C 2009 Acta Phys.Sin. 58 3309 (in Chinese) [曹世勋、高 湉、康保娟、舒苗苗、郁黎明、袁淑娟、张金仓 2009 58 3309]
[17] Cheng X W,Gao Y Z,Li X,Liu Y,Long X,Yu Z 2009 Acta Phys.Sin. 58 2018 (in Chinese) [程兴旺、高院玲、李 祥、刘 颖、龙 雪、于 宙 2009 58 2018]
[18] Li X J,Wang Q 2009 Acta Phys.Sin. 58 6482 (in Chinese) [李晓娟、王 强 2009 58 6482]
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