Local-moment ferromagnetism and unusual magnetic domains in Fe1/4TaS2 crystals

被引：10

作者：

Vannette, M. D. ^{[1
,2
]}

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

Morosan, E. ^{[3
]}

Cava, R. J. ^{[4
]}

Prozorov, R. ^{[1
,2
]}

机构：

[1] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[2] Iowa State Univ, Ames Lab, Ames, IA 50011 USA

[3] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

[4] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 02期

关键词：

ferromagnetic materials; iron compounds; magnetic anisotropy; magnetic domains; magnetic susceptibility; tantalum compounds; TUNNEL-DIODE OSCILLATOR; SUSCEPTIBILITY;

D O I：

10.1103/PhysRevB.80.024421

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Single crystals of Fe1/4TaS2 have been studied by using magneto-optical (MO) imaging and radio-frequency magnetic susceptibility, chi. Real-time MO images reveal unusual slow dynamics of dendritic domain formation, the details of which are strongly dependent upon magnetic and thermal history. Measurements of chi(T) show well-defined local-moment ferromagnetic transition at T approximate to 155 K as well as thermal hysteresis for 50 < T < 60 K. This temperature range corresponds to the domain-formation temperature as determined by MO. Together these observations provide strong evidence for local-moment ferromagnetism in Fe1/4TaS2 crystals with large temperature-dependent magnetic anisotropy.

引用

页数：5

共 13 条

[1] Anomalous Hall effect and magnetoresistance in the layered ferromagnet Fe1/4TaS2:: The inelastic regime [J].

Checkelsky, J. G. ;

Lee, Minhyea ;

Morosan, E. ;

Cava, R. J. ;

Ong, N. P. .

PHYSICAL REVIEW B, 2008, 77 (01)

[2] MAGNETIC SUSCEPTIBILITY MEASUREMENTS WITH A TUNNEL DIODE OSCILLATOR [J].

CLOVER, RB ;

WOLF, WP .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1970, 41 (05) :617-&

[3] BAND-STRUCTURE CALCULATIONS OF FE1/3TAS2 AND MN1/3TAS2, AND TRANSPORT AND MAGNETIC-PROPERTIES OF FE0.28TAS2 [J].

DIJKSTRA, J ;

ZIJLEMA, PJ ;

VANBRUGGEN, CF ;

HAAS, C ;

DEGROOT, RA .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (36) :6363-6379

[4] FERROMAGNETISM IN METALLIC INTERCALATED COMPOUNDS FEXTAS2 (0.20 LESS-THAN-OR-EQUAL-TO X LESS-THAN-OR-EQUAL-TO 0.34) [J].

EIBSCHUTZ, M ;

MAHAJAN, S ;

DISALVO, FJ ;

HULL, GW ;

WASZCZAK, JV .

JOURNAL OF APPLIED PHYSICS, 1981, 52 (03) :2098-2100

[5] Sharp switching of the magnetization in Fe1/4TaS2 [J].

Morosan, E. ;

Zandbergen, H. W. ;

Li, Lu ;

Lee, Minhyea ;

Checkelsky, J. G. ;

Heinrich, M. ;

Siegrist, T. ;

Ong, N. P. ;

Cava, R. J. .

PHYSICAL REVIEW B, 2007, 75 (10)

[6] Collapse of the critical state in superconducting niobium [J].

Prozorov, Ruslan ;

Shantsev, Daniel V. ;

Mints, Roman G. .

PHYSICAL REVIEW B, 2006, 74 (22)

[7] Magnetic penetration depth in unconventional superconductors [J].

Prozorov, Ruslan ;

Giannetta, Russell W. .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2006, 19 (08) :R41-R67

[8] EFFECTIVE CURIE - WEISS CONSTANT OF FERROMAGNETIC METALS AND ALLOYS [J].

RHODES, P ;

WOHLFARTH, EP .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1963, 273 (1352) :247-+

[9] Current-induced resonance and mass determination of a single magnetic domain wall [J].

Saitoh, E ;

Miyajima, H ;

Yamaoka, T ;

Tatara, G .

NATURE, 2004, 432 (7014) :203-206

[10] TUNNEL-DIODE OSCILLATOR FOR 0.001 PPM MEASUREMENTS AT LOW-TEMPERATURES [J].

VANDEGRIFT, CT .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1975, 46 (05) :599-607

← 1 2 →