A new manganese-based single-molecule magnet with a record-high antiferromagnetic phase transition temperature

doi:10.1088/1674-1056/23/6/067504

中国物理B ›› 2014, Vol. 23 ›› Issue (6): 67504-067504.doi: 10.1088/1674-1056/23/6/067504

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

A new manganese-based single-molecule magnet with a record-high antiferromagnetic phase transition temperature

崔岩, 李艳荣, 李瑞元, 王云平

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

收稿日期:2013-03-27 修回日期:2013-04-03 出版日期:2014-06-15 发布日期:2014-06-15
基金资助:
Project supported by the National Key Basic Research Program of China (Grant No. 2011CB921702) and the National Natural Science Foundation of China (Grant No. 11104331).

A new manganese-based single-molecule magnet with a record-high antiferromagnetic phase transition temperature

Cui Yan (崔岩), Li Yan-Rong (李艳荣), Li Rui-Yuan (李瑞元), Wang Yun-Ping (王云平)

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Received:2013-03-27 Revised:2013-04-03 Online:2014-06-15 Published:2014-06-15
Contact: Wang Yun-Ping E-mail:ypwang@iphy.ac.cn
Supported by:
Project supported by the National Key Basic Research Program of China (Grant No. 2011CB921702) and the National Natural Science Foundation of China (Grant No. 11104331).

摘要/Abstract

摘要： We perform both dc and ac magnetic measurements on the single crystal of Mn₃O(Et-sao)₃(ClO₄)(MeOH)₃ single-molecule magnet (SMM) when the sample is preserved in air for different durations. We find that, during the oxidation process, the sample develops into another SMM with a smaller anisotropy energy barrier and a stronger antiferromagnetic intermolecular exchange interaction. The antiferromagnetic transition temperature observed at 6.65 K in the new SMM is record-high for the antiferromagnetic phase transition in all the known SMMs. Compared to the original SMM, the only apparent change for the new SMM is that each molecule has lost three methyl groups as revealed by four-circle x-ray diffraction (XRD), which is thought to be the origin of the stronger antiferromagnetic intermolecular exchange interaction.

关键词: single-molecule magnet, quantum tunneling of magnetization, antiferromagnetic intermolecular exchange interaction

Abstract: We perform both dc and ac magnetic measurements on the single crystal of Mn₃O(Et-sao)₃(ClO₄)(MeOH)₃ single-molecule magnet (SMM) when the sample is preserved in air for different durations. We find that, during the oxidation process, the sample develops into another SMM with a smaller anisotropy energy barrier and a stronger antiferromagnetic intermolecular exchange interaction. The antiferromagnetic transition temperature observed at 6.65 K in the new SMM is record-high for the antiferromagnetic phase transition in all the known SMMs. Compared to the original SMM, the only apparent change for the new SMM is that each molecule has lost three methyl groups as revealed by four-circle x-ray diffraction (XRD), which is thought to be the origin of the stronger antiferromagnetic intermolecular exchange interaction.

Key words: single-molecule magnet, quantum tunneling of magnetization, antiferromagnetic intermolecular exchange interaction

中图分类号: (Molecular magnets)

75.50.Xx

76.60.Es (Relaxation effects) 75.30.Et (Exchange and superexchange interactions) 75.30.Kz (Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))

崔岩, 李艳荣, 李瑞元, 王云平. A new manganese-based single-molecule magnet with a record-high antiferromagnetic phase transition temperature[J]. 中国物理B, 2014, 23(6): 67504-067504.

Cui Yan (崔岩), Li Yan-Rong (李艳荣), Li Rui-Yuan (李瑞元), Wang Yun-Ping (王云平). A new manganese-based single-molecule magnet with a record-high antiferromagnetic phase transition temperature[J]. Chin. Phys. B, 2014, 23(6): 67504-067504.

参考文献 24

[1]	Sessoli R, Tsai H L, Schake A R, Wang S, Vincent J B, Folting K, Gatteschi D, Christou G and Hendrickson D N 1993 J. Am. Chem. Soc. 115 1804
[2]	Chrustou G, Gatteschi D, Hendrickson D N and Sessoli R 2000 Mater. Res. Soc. Bull. 25 66
[3]	Friedman J R, Sarachik M P, Tejada J and Ziolo R 1996 Phys. Rev. Lett. 76 3830
[4]	Henderson J J, Koo C, Feng P L, Barco E D, Hill S, Tupitsyn I S, Stamp P C E and Hendrickson D N 2009 Phys. Rev. Lett. 103 017202
[5]	Leuenberger M N and Loss D 2001 Nature 410 789
[6]	Ardavan A, Rival O, Morton J J L, Blundell S J, Tyryshkin A M, Timco G A and Winpenny R E P 2007 Phys. Rev. Lett. 98 057201
[7]	Bogani L and Wernsdorfer W 2009 Nat. Mater. 7 179
[8]	Xiong Z H, Wu D, Vardeny Z V and Shi J 2004 Nature 410 821
[9]	Wernsdorfer W, Alcalde A N, Hendrickson D N and Christou G 2002 Nature 416 406
[10]	Tiron R, Wernsdorfer W, Alcalde A N and Christou G 2003 Phys. Rev. B 86 140407
[11]	Wernsdorfer W, Bhaduri S, Tiron R, Hendrickson D N and Christou G 2002 Phys. Rev. Lett. 89 197201
[12]	Li Y R, Liu R Y, Liu H Q and Wang Y P 2014 Phys. Rev. B 89 184401
[13]	Miyasaka H, Nakata K, Lecren L, Coulon C, Nakazawa Y, Fujisaki T, Sugiura K, Yamashita M and Clérac R 2006 J. Am. Chem. Soc. 128 3770
[14]	Zuo J W, Liu H Q, Li Y R, Su S K and Wang Y P 2012 Sci. China: Phys. Mech. Astron. 55 11
[15]	Inglis R, Taylor S M, Jones L F, Papaefstathiou G S, Perlepes S P, Datta S, Hill S, Wernsdorfer W and Brechin E K 2009 Dalton Trans. 42 9157
[16]	Inglis R, Papaefstathiou G S, Wernsdorfere W and Brechin E K 2009 Aust. J. Chem. 62 1108
[17]	Inglis R, Jones L F, Karotsis G, Collins A, Parsons S, Perlepes S P, Wernsdorfer W and Brechin E K 2008 Chem. Commun. 5924
[18]	Boskovic C, Bircher R, Piggott T P L W, Güdel H U, Paulsen C, Wernsdorfer W, Barra A L, Khatsko E, Neels A and Evans H S 2003 J. Am. Chem. Soc. 125 14046
[19]	Luis F, Bartolome J, Fernandez J F, Tejada J, Hernández J M, Zhang X X and Ziolo R 1997 Phys. Rev. B 55 11448
[20]	Murakami Y, Yoo J H, Shindo D, Atou T and Kikuchi M 2003 Nature 423 965
[21]	Nishihara Y and Yamaguchi Y 1984 J. Phys. Soc. Jpn. 53 2201
[22]	Moreo A, Yunoki S and Dagotto E 1999 Science 283 2034
[23]	Semenov Y G, Zavada J M and Kim K W 2011 Phys. Rev. B 84 165435
[24]	Santos M A, Marques M C and Oliveira J M B 1988 J. Phys. C: Solid State Phys. 21 747

A new manganese-based single-molecule magnet with a record-high antiferromagnetic phase transition temperature

A new manganese-based single-molecule magnet with a record-high antiferromagnetic phase transition temperature

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