Acta Metall Sin  1996, Vol. 32 Issue (4): 409-412    DOI:

Current Issue | Archive | Adv Search |

COLLECTIVE MAGNETIC EXCITATIONS IN α-Fe_2O_3 ULTRAFINE PARTICLES

LI HaiLo1;2);GONG Jie2); CHEN Gang1); XING Zhiming2); YU Ruihuang1)1) (Jilin University; Changchun 130023)2) (Siping Normal College; Siping 136000)(Manuscript received 1995-08-07)

LI HaiLo1;2);GONG Jie2); CHEN Gang1); XING Zhiming2); YU Ruihuang1)1) (Jilin University; Changchun 130023)2) (Siping Normal College; Siping 136000)(Manuscript received 1995-08-07). COLLECTIVE MAGNETIC EXCITATIONS IN α-Fe_2O_3 ULTRAFINE PARTICLES. Acta Metall Sin, 1996, 32(4): 409-412.

Abstract References Related Articles Recommended Metrics Download:  PDF(333KB)  Export:  BibTeX | EndNote (RIS)       Abstract  α-Fe_2O_3 ultrafine particles were prepared by precipitation method. The Mssbauer spectra of three samples with various grain size were measured at room temperature and one of them in temperature range from 295 to 80 K. The results indicate that the internal magnetic field has varied obviously with the change of grain size and environment temperature mainly due to collective magnetic excitations. The magnetic anisotropy constants of the samples with various grain size were obtained by the studies of collective magnetic excitations. Correspondent: LI Haibo,(Department of Materials Science, Jilin University, Changchun 130023) Key words:  ultrafine particles      Mǒssbauer spectrum      collective magnetic excitation      magnetic anisotropy      Received:  18 April 1996      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1996/V32/I4/409 1GleiterH．ProgMalerSci,1989;33:2232HadjipanayisGC,GangopadhyayS,YipingL,SorensenCM,KlabundeKJ．In:HadjipanayisGC,PrinzGAeds．,ScienceandTechnologyofNanostructuredMagneticMaterials,NewYork:Plenum,1991:4973HerzerG．JMagnMagnMater,1992;112:2584KatoA,SuyamaY．JpnJSurfSciSoc,1987;8:3165KundigW,BommelH,ConstabarisG,LindquistRH．RhysRev,1966;142:3276PolikarpovMA,TrushinIV,YakimovSS．JMagnMagnMater,1992,116:3727MorupS,TopsoeH．ApplPhys,1976;11:638MorupS．NyperfineInteract,1990;60:9599SpadaFE,ParkerFT,NakakuraCY,BerkowitzAE．JMagnMagnMater,1993;120:1298 [1] HE Xianmei, TONG Liuniu, GAO Cheng, WANG Yichao. Effect of Nd Content on the Structure and Magnetic Properties of Si(111)/Cr/Nd-Co/Cr Thin Films Prepared by Magnetron Sputtering[J]. 金属学报, 2019, 55(10): 1349-1358. [2] Xiaoqin MA, Qingfeng ZHAN, Jincai LI, Qingfang LIU, Baomin WANG, Runwei LI. Influence of Oblique Sputtering on Stripe Magnetic Domain Structure and Magnetic Anisotropy of CoFeB Thin Films[J]. 金属学报, 2018, 54(9): 1281-1288. [3] FANG Yunzhang XU Qiming YE Huiqun FAN Xiaozhen QIU Jianfeng. MAGNETIC STRUCTURE OF RAPIDLY QUENCHED FeCo-BASED RIBBON ANNEALED UNDER TENSILE STRESS IN FLOWING ATMOSPHERE[J]. 金属学报, 2011, 47(4): 475-481. [4] CUI Yue JIANG Chengbao XU Huibin. INTRINSIC MAGNETOSTRICTION OF Tb-Dy-Fe-Co ALLOY[J]. 金属学报, 2011, 47(2): 214-218. [5] ZHANG Bangwen; REN Zhongming; WANG Hui; LI Xi; ZHUANG Yunqian. On Dynamics of Grain Alignment During Alloy Solidification Under Applied Magnetic Field[J]. 金属学报, 2004, 40(6): 604-. [6] JI Song (Research Institute No.52 of China Ordnance industry; Ningbo Branch;Ningbo 315040);YANG Guobin; WANG Run (University of Science and Technology Beijing; Beijing 100083)(Manuscript received 1995-03-31; in revised form 1995-06-29). MICROSTRUCTURE AND MAGNETIC PROPERTIES OF NANOSTRUCTURED SOFT MAGNETIC ALLOY Fe_(73.5) Cu_(1 .0)Mo_(3.0)Si_(13.5)B_(9.0)[J]. 金属学报, 1996, 32(1): 69-74. [7] CHEN Jian;SUN Xiukui;XU Jian;YANG Mingchuan;WEI Wenduo;HU Zhuangqi Stale Key Laboratory of Rapidly Solidified and Non-Equiliberium Alloys; Institute of Metal Research; Academia Sinica; Shenyang. PREPARATION AND PROPERTIES OF FePd ALLOY ULTRAFINE PARTICLES[J]. 金属学报, 1993, 29(9): 18-24. [8] CHEN Jian;WEI Wenduo;SUN Xiukui;YANG Mingchuan;HU Zhuangqi State Key Laboratory of RSA; Institute of Metal Research; Academia Sinica; Shenyangdoctoral candidate;Institute of Metal Research;Academia Sinica;Shenyang 110015. A NEW APPROACH TO PARTICLE SIZE DETERMINATION OF ALLOY UFP[J]. 金属学报, 1993, 29(8): 85-90. [9] XIONG Xiangyuan;HE Kaiyuan Northeast University of Technology; Shenyang. MAGNETIC ANISOTROPY OF AS-QUENCHED AMORPHOUS ALLOY RIBBONS[J]. 金属学报, 1991, 27(3): 121-125. [10] HE Zhengming;XU Fang;LUO Youquan;LU Guorong University of Science and Technology of China; Hefei. UNIAXIAL ANISOTROPY IN FeNiCuMnCosiP AMORPHOUS ALLOY RIBBON[J]. 金属学报, 1991, 27(2): 99-103. [11] GUAN Kehong;WANG Jun Northeast University of Technology; Shenyang GUAN Kekong; associate professor; Department of Material Science and Engineering;Northeast University of Technology; 110006 Shenyang. INTRINSIC MAGNETISM AND MAGNETIC ANISOTROPY OF AMORPHOUS ALLOYS Fe_(1-x)(Si, B)_x[J]. 金属学报, 1989, 25(5): 111-114. [12] XU Zuxiong;MA Ruzhang;HAN Yongzhu University of Science and Technology Beijing Beijing Institute of Metallurgy. MSSBAUER STUDY ON MAGNETIC ANISOTROPY OF AMORPHOUS ALLOY Fe_(71)Ni_(10)B_(13)Si_4C_2[J]. 金属学报, 1989, 25(3): 143-145. [13] MA Ruzhang Beijing University of Iron and Steel Technology XU Zuxiong Asspcoated professor Spediatty of Metal Physics;Beijing University of from and Steel Technology. EFFECTS OF THINNING ON MAGNETIC ANISOTROPY AND DISTRIBUTION OF MOMENTS IN AMORPHOUS ALLOY Fe_(81)B_(13.5)Si_(3.5)C_2[J]. 金属学报, 1988, 24(1): 141-143. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed