利用固相反应法制备了Sr14Cu24O41和Sr14(Cu0.99Zn0.01)24O41的样品,X-ray衍射分析显示,样品呈较纯的单相,样品的晶格常数掺杂前后并无明显变化.测量了S=0的非磁性元素Zn部分替代S=1/2的B位Cu离子后体系低温磁性质的变化.曲线整体拟合结果表明掺Zn使得体系中居里外斯部分的贡献减少,并且由Zn引入的局域磁矩通过近邻的自旋单态与次近邻的Cu2+进行超交换相互作用形成二聚体,使系统内二聚体的个数增加并且二聚体的耦合能减小.
参考文献
[1] | Takahashi T.;Ashihara A.;Akaki O.;Fujisawa H.;Chainani A. Uehara M.;Nagata T.;Akimitsu J.;Tsunetsugu H.;Yokoya T. .ANGLE-RESOLVED PHOTOEMISSION STUDY OF THE LADDER COMPOUND SR14CU24O41[J].Physical Review.B.Condensed Matter,1997(13):7870-7873. |
[2] | Sato T.;Takahashi T.;Uehara M.;Nagata T.;Goto J.;Akimitsu J.;Yokoya T. .Angle-resolved photoemission study of superconducting ladder compound Sr14-xCaxCu24O41[J].The journal of physics and chemistry of solids,1998(10/12):1912-1916. |
[3] | Zhang F;Cand Rice T M .[J].Physical Review,1998,37:3759. |
[4] | Takigawa M.;Eisaki H.;Uchida S.;Motoyama N. .Spin and charge dynamics in the hole-doped one-dimensional-chain-ladder composite material Sr14Cu24O41: Cu NMR/NQR studies[J].Physical Review.B.Condensed Matter,1998(2):1124-1140. |
[5] | Isobe M.;Takayama-Muromachi E.;Uchida Y. .Antiferromagnetic transition in Sr14-xCaxCu24O41 (12.5 <= x <= 13.6) observed by magnetic measurements[J].Physical Review.B.Condensed Matter,1999(13):8703-8708. |
[6] | Kato M;Shiota K;Koike Y .[J].Physical C,1996,258:284. |
[7] | Uehara M;Nagata T;Akimitsu J;Takahashi.H, et al.[J].Journal of the Physical Society of Japan,1996,65:2764. |
[8] | Isobe M;Ohta T;Onoda M;Izumi.F, Nakano.S, Li.J, Matsui.Y, Takayama-Muromachi.E, Matsumoto.T Hayakawa .[J].H Phytopathology,1998,57:613. |
[9] | Blumberg G;Littlewood P;Gozar A;Dennis.B.S, Motoyama.N, et al.[J].Science,2002,297:584. |
[10] | McCarron E M;Subramanian M A;Calabrese J C;Harlow.R.L .[J].Materials Research Bulletin,1988,23:1355. |
[11] | Kumagai K;Tsuji S;Kato M;Koike Y .NMR study of carrier doping effects on spin gaps in the spin ladder Sr(14-x)A(x)Cu(24)O(41) (A=Ca,Y, and La)[J].Physical review letters,1997(10):1992-1995. |
[12] | Vuletic' T;Korin-Hamzic' B;Tomic' S;Haas.P, et al.[J].Physical Review Letters,2003,90:257002. |
[13] | Motoyama N;Osafune T;Kakeshita T;Eisaki.H Uchida.S .[J].Physical Review,1997,55:3386. |
[14] | Hess C;ElHaes H;Büchner B;Ammerahl.U, Hücker.M Revcolevsch.A .[J].Physical Review Letters,2004,93:027005. |
[15] | Lin Chin;Chen Haiying;Wang Qiheng;Ni Yongming .[J].Physical Review,2001,54:104517. |
[16] | Carter S A;Batlogg B;Cava R J;Krajewski.J.J, Peck.W.F,Jr. Rice.T.M .[J].Physical Review Letters,1996,77:1378. |
[17] | Hiroi Z;Amelinckx S;Tendeloo G Van;Kobayashi.N .[J].Physical Review,1996,54:15849. |
[18] | Azuma M;Hiroi Z;Takano M;Ishida.K Kitaoka.Y .[J].Physical Review Letters,1994,73:3463. |
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