Coexistence of positive and negative magnetic entropy changes in CeMn2(Si1-xGex)2 compounds

doi:10.1088/1674-1056/24/9/097104

中国物理B ›› 2015, Vol. 24 ›› Issue (9): 97104-097104.doi: 10.1088/1674-1056/24/9/097104

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Coexistence of positive and negative magnetic entropy changes in CeMn₂(Si_1-xGe_x)₂ compounds

左文亮, 胡凤霞, 孙继荣, 沈保根

State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

收稿日期:2015-05-11 修回日期:2015-06-12 出版日期:2015-09-05 发布日期:2015-09-05
基金资助:
Project supported by the Beijing Natural Science Foundation, China (Grant No. 2152034) and the National Natural Science Foundation of China (Grant Nos. 11274357 and 51271196).

Coexistence of positive and negative magnetic entropy changes in CeMn₂(Si_1-xGe_x)₂ compounds

Zuo Wen-Liang (左文亮), Hu Feng-Xia (胡凤霞), Sun Ji-Rong (孙继荣), Shen Bao-Gen (沈保根)

State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Received:2015-05-11 Revised:2015-06-12 Online:2015-09-05 Published:2015-09-05
Contact: Zuo Wen-Liang, Shen Bao-Gen E-mail:wlzuo@iphy.ac.cn;shenbg@aphy.iphy.ac.cn
Supported by:
Project supported by the Beijing Natural Science Foundation, China (Grant No. 2152034) and the National Natural Science Foundation of China (Grant Nos. 11274357 and 51271196).

摘要/Abstract

摘要： A series of CeMn₂(Si_1-xGe_x)₂ (x=0.2, 0.4, 0.6, 0.8) compounds are prepared by the arc-melting method. All the samples primarily crystallize in the ThCr₂Si₂-type structure. The temperature dependences of zero-field-cooled (ZFC) and FC magnetization measurements show a transition from antiferromagnetic (AFM) state to ferromagnetic (FM) state at room temperature with the increase of the Ge concentration. For x=0.4, the sample exhibits two kinds of phase transitions with increasing temperature: from AFM to FM and from FM to paramagnetic (PM) at around T_N ～ 197 K and T_C ～ 300 K, respectively. The corresponding Arrott curves indicate that the AFM-FM transition is of first-order character and the FM-PM transition is of second-order character. Meanwhile, the coexistence of positive and negative magnetic entropy changes can be observed, which are corresponding to the AFM-FM and FM-PM transitions, respectively.

关键词: magnetocaloric effect, CeMn₂(Si_0.6Ge_0.4)₂ compound, metamagnetic transition, positive entropy change

Abstract: A series of CeMn₂(Si_1-xGe_x)₂ (x=0.2, 0.4, 0.6, 0.8) compounds are prepared by the arc-melting method. All the samples primarily crystallize in the ThCr₂Si₂-type structure. The temperature dependences of zero-field-cooled (ZFC) and FC magnetization measurements show a transition from antiferromagnetic (AFM) state to ferromagnetic (FM) state at room temperature with the increase of the Ge concentration. For x=0.4, the sample exhibits two kinds of phase transitions with increasing temperature: from AFM to FM and from FM to paramagnetic (PM) at around T_N ～ 197 K and T_C ～ 300 K, respectively. The corresponding Arrott curves indicate that the AFM-FM transition is of first-order character and the FM-PM transition is of second-order character. Meanwhile, the coexistence of positive and negative magnetic entropy changes can be observed, which are corresponding to the AFM-FM and FM-PM transitions, respectively.

Key words: magnetocaloric effect, CeMn₂(Si_0.6Ge_0.4)₂ compound, metamagnetic transition, positive entropy change

中图分类号: (Rare earth metals and alloys)

71.20.Eh

75.30.Sg (Magnetocaloric effect, magnetic cooling) 75.50.Ee (Antiferromagnetics) 75.47.Np (Metals and alloys)

左文亮, 胡凤霞, 孙继荣, 沈保根. Coexistence of positive and negative magnetic entropy changes in CeMn₂(Si_1-xGe_x)₂ compounds[J]. 中国物理B, 2015, 24(9): 97104-097104.

Zuo Wen-Liang (左文亮), Hu Feng-Xia (胡凤霞), Sun Ji-Rong (孙继荣), Shen Bao-Gen (沈保根). Coexistence of positive and negative magnetic entropy changes in CeMn₂(Si_1-xGe_x)₂ compounds[J]. Chin. Phys. B, 2015, 24(9): 97104-097104.

参考文献 23

[1]	Gschneidner K A and Pecharsky V K 2000 Annu. Rev. Mater. Sci. 30 387
[2]	Gutfleisch O, Willard M A, Bruck E, Chen C H, Sankar S G and Liu J P 2011 Adv. Mater. 23 821
[3]	Shen B G, Sun J R, Hu F X, Zhang H W and Cheng Z H 2009 Adv. Mater. 21 4545
[4]	Pecharsky V K and Gschneidner K A 1997 Phys. Rev. Lett. 78 4494
[5]	Wang J L, Campbell S J, Cadogan J M, Studer A J, Zeng R and Dou S X 2011 Appl. Phys. Lett. 98 232509
[6]	Tishin A M and Spichkin A I 2003 The Magnetocalric Effect and its Applications (London: Institute of Physics Publishing)
[7]	Gschneidner K A, Pecharsky V K and Tsokol A O 2005 Rep. Prog. Phys. 68 1479
[8]	de Oliveira N A and von Ranke P J 2010 Phys. Rep. 489 89
[9]	Roy S B 2014 Handbook of Magnetic Materials 2014 (Amsterdam: Elsevier) 22
[10]	Fujita A, Fujieda S, Hasegawa Y and Fukamichi K 2003 Phys. Rev. B 67 104416
[11]	Hu F X, Shen B G, Sun J R, Cheng Z H, Rao G H and Zhang X X 2001 Appl. Phys. Lett. 78 3675
[12]	Li L, Hutchison W D, Huo D, Namiki T, Qian Z and Nishimura K 2012 Scr. Mater. 67 237
[13]	Kumar P, Singh N K, Suresh K G and Nigam A K 2007 J. Alloys Compd. 427 42
[14]	Duman E, Acet M, Elerman Y, Elmali A and Wassermann E F 2002 J. Magn. Magn. Mater. 238 11
[15]	Emre B, Dincer I and Elerman Y 2010 Solid State Commun. 150 1279
[16]	Wang J L, Campbell S J, Zeng R, Poh C K, Dou S X and Kennedy S J 2009 J. Appl. Phys. 105 07A909
[17]	FernandezBaca J A, Hill P, Chakoumakos B C and Ali N 1996 J. Appl. Phys. 79 5398
[18]	Lalic M V, Mestnik-Filho J, Carbonari A W and Saxena R N 2004 J. Phys.: Condens. Matter 16 6685
[19]	Liang G and Croft M 1989 Phys. Rev. B 40 361
[20]	Duman E, Acet M, Dincer I, Elmali A and Elerman Y 2007 J. Magn. Magn. Mater. 309 40
[21]	Elmali A, Dincer I, Elerman Y, Ehrenberg H and Fuess H 2003 J. Phys.: Condens. Matter 15 653
[22]	Chau N, Cuong D H, Tho N D, Nhat H N, Luong N H and Cong B T 2004 J. Magn. Magn. Mater 272-276 1292
[23]	Banerjee B K 1964 Phys. Lett. 12 16

Coexistence of positive and negative magnetic entropy changes in CeMn₂(Si_1-xGe_x)₂ compounds

Coexistence of positive and negative magnetic entropy changes in CeMn₂(Si_1-xGe_x)₂ compounds

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