Al3+ doping effects and high-field phase diagram of La0.5Sr0.5Mn1-xAlxO3

被引：6

作者：

Shang, C. ^{[1
,2
]}

Xia, Z. C. ^{[1
]}

Wei, M. ^{[1
,2
]}

Jin, Z. ^{[1
,2
]}

Chen, B. R. ^{[1
,2
]}

Shi, L. R. ^{[1
,2
]}

Ouyang, Z. W. ^{[1
]}

Huang, S. ^{[1
,2
]}

Xiao, G. L. ^{[1
,2
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl High Magnet Field Ctr, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2016年 / 49卷 / 03期

基金：

中国国家自然科学基金;

关键词：

manganites; phase transition; doping; pulsed high magnetic field; INSULATOR-METAL TRANSITION; MAGNETIC-FIELD; TRANSPORT-PROPERTIES; CHARGE; MAGNETORESISTANCE; PEROVSKITES; ORDER;

D O I：

10.1088/0022-3727/49/3/035001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetization measurements of La0.5Sr0.5Mn1-xAlxO3 (0 <= x <= 0.25) under pulsed high magnetic fields up to 50 T have been carried out, in which the Al3+ ions doping and magnetic field effects on the charge-ordering/antiferromagnetic to ferromagnetic phase transitions have been discussed. A triple-phase diagram with the critical field, doping level and temperature has been determined, in which the antiferromagntic and ferromagnetic phase boundaries were clearly defined. The change from long-range charge-ordered/antiferromagnetic phases to the robust short-range ones upon the Al3+-doping was observed. According to the experimental results, we assume that Al3+ ion doping at the Mn sites dilutes the Mn3+-O-Mn4+ network, weakens the double-exchange interaction and further suppresses the FM phase (metallic conduction), which leads to the critical magnetic fields destroying the antiferromagnetic order increase with the increase of the doping level.

引用

页数：10

共 37 条

[1] Effects of Fe doping in the colossal magnetoresistive La1-xCaxMnO3 [J].

Ahn, KH ;

Wu, XW ;

Liu, K ;

Chien, CL .

JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) :5505-5507

[2] CONSIDERATIONS ON DOUBLE EXCHANGE [J].

ANDERSON, PW ;

HASEGAWA, H .

PHYSICAL REVIEW, 1955, 100 (02) :675-681

[3] Effect of aluminum doping on the magneto-transport properties of La0.75Ca0.25MnO3 [J].

Bathe, R ;

Shinde, SR ;

Gapchup, KM ;

Adhi, KP ;

Patil, SI .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2003, 256 (1-3) :425-429

[4] Structural, magnetic, and transport properties of the giant magnetoresistive perovskites La2/3Ca1/3Mn1-xAlxO3-delta [J].

Blasco, J ;

Garcia, J ;

deTeresa, JM ;

Ibarra, MR ;

Perez, J ;

Algarabel, PA ;

Marquina, C ;

Ritter, C .

PHYSICAL REVIEW B, 1997, 55 (14) :8905-8910

[5] Structural and magnetic phase diagrams of La1-xSrxMnO3 and Pr1-ySryMnO3 -: art. no. 094431 [J].

Chmaissem, O ;

Dabrowski, B ;

Kolesnik, S ;

Mais, J ;

Jorgensen, JD ;

Short, S .

PHYSICAL REVIEW B, 2003, 67 (09)

[6] Colossal magnetoresistant materials: The key role of phase separation [J].

Dagotto, E ;

Hotta, T ;

Moreo, A .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2001, 344 (1-3) :1-153

[7] EFFECTS OF DOUBLE EXCHANGE IN MAGNETIC CRYSTALS [J].

DEGENNES, PG .

PHYSICAL REVIEW, 1960, 118 (01) :141-154

[8] Dependence of negative differential resistance on electronic phase separation in unpatterned manganite films [J].

Ding, J. F. ;

Jin, K. X. ;

Zhang, Z. ;

Wu, T. .

APPLIED PHYSICS LETTERS, 2012, 100 (06)

[9] Effect of Al doping on the magnetic and electrical properties of layered perovskite La1.3Sr1.7Mn2-xAlxO7 [J].

Han, L. A. ;

Chen, C. L. ;

Dong, H. Y. ;

Wang, J. Y. ;

Gao, G. M. .

PHYSICA B-CONDENSED MATTER, 2008, 403 (17) :2614-2617

[10] Gate Control of Electronic Phases in a Quarter-Filled Manganite [J].

Hatano, T. ;

Ogimoto, Y. ;

Ogawa, N. ;

Nakano, M. ;

Ono, S. ;

Tomioka, Y. ;

Miyano, K. ;

Iwasa, Y. ;

Tokura, Y. .

SCIENTIFIC REPORTS, 2013, 3

← 1 2 3 4 →