Field effect on phase segregation in the electron-doped mixed-valence manganites near a structural instability -: art. no. 104437

被引：29

作者：

Algarabel, PA ^{[1
]}

De Teresa, JM

García-Landa, B

Morellon, L

Ibarra, MR

Ritter, C

Mahendiran, R

Maignan, A

Hervieu, M

Martin, C

Raveau, B

Kurbakov, A

Trounov, V

机构：

[1] Univ Zaragoza, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain

[2] Univ Zaragoza, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain

[3] CSIC, E-50009 Zaragoza, Spain

[4] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France

[5] Inst Sci Mat & Rayonnement, Lab CRISMAT, UMR 6508, F-14050 Caen, France

[6] Univ Caen, F-14050 Caen, France

[7] Petersburg Nucl Phys Inst, Gatchina 188350, Leningrad Distr, Russia

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.65.104437

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The rich and peculiar macro- and microscopic phenomenology observed in the electron-doped region of the Sm-Ca phase diagram of manganites can be found in the unique and fascinating compound Sm0.15Ca0.85MnO3. We report the existence of nano- and microscopic phase segregation above and below T-N approximate to 112 K. The very different nature of the coexisting phases and the field and temperature dependencies are explained considering the interplay of magnetic and structural correlations, which give rise to different structural and magnetic ground states, close in energies (P-Pnma, G+F-Pnma, G-Pnma, C-P2(1)/m).

引用

页码：1 / 5

页数：5

共 28 条

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PHYSICAL REVIEW LETTERS, 2000, 84 (18) : 4216 - 4219
[2] Mn 3s exchange splitting in mixed-valence manganites -: art. no. 113102
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[3] Strong reduction of lattice effects in mixed-valence manganites related to crystal symmetry -: art. no. 024418
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[4] Magnetic properties in the electron-doped bulk manganites Nd1-xCexMnO3 -: art. no. 014453
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[5] Anomalous magnetothermopower in the mixed state of the electron-doped high-Tc superconductors -: art. no. 052506
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[7] Electronic states in the antiferromagnetic phase of electron-doped high-Tc cuprates -: art. no. 212505
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PHYSICAL REVIEW B, 2003, 67 (01):
[9] Near degeneracy and pseudo Jahn-Teller effects in mixed-valence ladders:: The phase transition in NaV2O5 -: art. no. 195117
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PHYSICAL REVIEW B, 2005, 72 (19)
[10] Upper critical field in the electron-doped layered superconductor ZrNCl0.7:: Magnetoresistance studies -: art. no. 020501
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