Nonequilibrium 1/f noise in low-doped manganite single crystals

被引：20
作者：
Wu, X. D.
Dolgin, B.
Jung, G.
Markovich, V.
Yuzhelevski, Y.
Belogolovskii, M.
Mukovskii, Ya. M.
机构：
[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel
[2] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia
[3] Natl Acad Sci Ukraine, Donetsk Phys & Tech Inst, UA-83114 Donetsk, Ukraine
[4] Sci & Ind Concern Nauka, UA-04116 Kiev, Ukraine
[5] Moscow State Steel & Alloys Inst, Moscow 119049, Russia
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 24期
关键词：
D O I：
10.1063/1.2748083
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
1/f noise in current biased La0.82Ca0.18MnO3 crystals has been investigated. The temperature dependence of the noise follows the resistivity changes with temperature, suggesting that resistivity fluctuations constitute a fixed fraction of the total resistivity, independently of the dissipation mechanism and magnetic state of the system. The noise scales as a square of the current as expected for equilibrium resistivity fluctuations. However, at 77 K at bias exceeding some threshold, the noise intensity starts to decrease with increasing bias. The appearance of nonequilibrium noise is interpreted in terms of bias dependent multistep indirect tunneling. (c) 2007 American Institute of Physics.
引用
收藏
页数：3
相关论文
共 50 条
[31]   Scaling of 1/f noise in nonequilibrium phase transitions [J].
Koverda, VP ;
Skokov, VN .
TECHNICAL PHYSICS, 2004, 49 (09) :1104-1109
[32]   1/f noise at a critical nonequilibrium phase transition [J].
JETP Lett, 9 (775)
[33]   Nonequilibrium 1/f noise in platinum nanoparticle films [J].
Mihaila, M ;
Ursutiu, D ;
Grigoriu, C ;
Danila, M ;
Steriu, D ;
Craciunoiu, F .
2003 INTERNATIONAL SEMICONDUCTOR CONFERENCE, VOLS 1 AND 2, PROCEEDINGS, 2003, :43-46
[34]   Metastable resistivity and nonlinear conductivity in low-doped Pr1-xSrxMnO3 single crystals -: art. no. 10H708 [J].
Jung, G ;
Markovich, V ;
Yuzhelevskii, Y ;
Rozenberg, E ;
Gorodetsky, G ;
Mukovskii, YM .
JOURNAL OF APPLIED PHYSICS, 2005, 97 (10)
[35]   Anisotropic magnetoresistance in low-doped La0.79Ca0.21MnO3 crystals [J].
Yuzhelevski, Ya. ;
Markovich, V. ;
Jung, G. ;
Gorodetsky, G. .
JOURNAL OF APPLIED PHYSICS, 2011, 109 (06)
[36]   Anisotropic magnetoresistance in low-doped La0.78Ca0.22MnO3 crystals [J].
Markovich, V. ;
Jung, G. ;
Yuzhelevski, Ya. ;
Gorodetsky, G. ;
Mukovskii, Ya. M. .
JOURNAL OF APPLIED PHYSICS, 2011, 109 (07)
[37]   Origin of 1/f-noise in nonequilibrium phase transition [J].
Koverda, VP ;
Skokov, VN ;
Skripov, VP .
DOKLADY AKADEMII NAUK, 1997, 356 (05) :614-616
[38]   1/f noise in doped semiconductor thermistors [J].
McCammon, D ;
Galeazzi, M ;
Liu, D ;
Sanders, WT ;
Tan, P ;
Boyce, KR ;
Brekosky, R ;
Gygax, JD ;
Kelley, R ;
Mott, DB ;
Porter, FS ;
Stahle, CK ;
Stahle, CM ;
Szymkowiak, AE .
LOW TEMPERATURE DETECTORS, 2002, 605 :91-94
[39]   Spin glass behavior in hole- and electron-doped bismuth manganite single crystals [J].
Zhao, B. C. ;
Huang, Y. N. ;
Hao, C. Y. ;
Kuang, G. L. ;
Sun, Y. P. .
PHYSICA B-CONDENSED MATTER, 2012, 407 (17) :3457-3462
[40]   Conductivity and switching phenomena in Mn-doped perovskite single crystals and manganite thin films [J].
Noginova, N ;
Loutts, GB ;
Gillman, ES ;
Atsarkin, VA ;
Verevkin, AA .
PHYSICAL REVIEW B, 2001, 63 (17) :1744141-1744146
12345