Crystal growth of rare earth–iron intermetallic compounds by the flux-creep-up method

Samata, H.; Sakamoto, Kazutami; Yashiro, S.; Nagata, Y.

doi:10.1016/s0022-0248(01)01213-1

Cited by 6 publications

(7 citation statements)

References 12 publications

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“…Single crystals were grown with a modified flux method using samarium as a flux [12]. After arc-melting an appropriate amount of samarium (99.9%) and iron (99.9%), the mixture (w30 g) was placed in a BN-coated alumina crucible.…”

Section: Methodsmentioning

confidence: 99%

Functional intermetallic compounds in the samarium–iron system

Kawamura

Taniguchi

Mizusaki

et al. 2006

Science and Technology of Advanced Materials

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Magnetism of intermetallic compounds SmFe 2 , SmFe 3 , Sm 6 Fe 23 , and SmFe 7 were studied in detail using single crystals and the use of these materials has been discussed. SmFe 2 and Sm 6 Fe 23 have cubic magnetocrystalline anisotropy and the easy axis of magnetization in the [111] direction. SmFe 2 has giant negative magnetostriction that can be used for microactuator or ultrasonic generator. SmFe 3 has a relatively large saturation moment and uniaxial anisotropy, which are promising for application as a perpendicular magnetic recording medium. Large saturation magnetization and extremely large magnetocrystalline anisotropy of SmFe 7 seem promising as an absorber in the frequency range of milliwave as well as a high performance permanent magnet. q

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Section: Methodsmentioning

confidence: 99%

Functional intermetallic compounds in the samarium–iron system

Kawamura

Taniguchi

Mizusaki

et al. 2006

Science and Technology of Advanced Materials

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“…In particular, SmFe 7 is a new phase (Samata et al, 1998;Samata, Sakamoto, Yashiro and Nagata, 2001) crystallizing in the tetragonal structure (space group P 4 2 / mmm) with a significantly large spontaneous magnetization 136 emu g −1 at 293 K, high T C = 608 K, and huge magnetocrystalline anisotropy constants K 1 + K 2 = −6.9 × 10 6 J m −3 at 293 K (Samata et al, 1998), which are comparable with those of Nd 2 Fe 14 B.…”

Section: Sm X Fe Y and Miscellaneous Compoundsmentioning

confidence: 96%

“…In the case of Fe-Sm compounds a Sm self-flux was successfully applied to grow crystals, which cannot be prepared otherwise (Samata et al, 1998;Samata, Sakamoto, Yashiro and Nagata, 2001). After arc melting an appropriate amount of rare earth (Sm) and iron the button (∼30 g) was (100) and (111) planes, respectively.…”

Section: Sm X Fe Y and Miscellaneous Compoundsmentioning

confidence: 99%

“…After being held at that temperature for 0.5-6 h, it was cooled with 0.1-4 K h −1 to 700-850 • C, and then the quartz ampoule was cooled to room temperature by turning off the electric furnace. One special feature of this flux-creep-up method is that the flux creeps up the inner wall of the crucible during the crystal growth (Samata, Sakamoto, Yashiro and Nagata, 2001). Since the Sm flux around the crystal was easily oxidized into oxide powder in a few days, crystals could be removed easily from the bottom of the crucible without applying any mechanical strain.…”

Section: Sm X Fe Y and Miscellaneous Compoundsmentioning

confidence: 99%

“…The crystallization of various intermetallic compounds is possible by adjusting the growth condition. Crystals of SmFe 2 , SmFe 3 (Samata, Sakamoto, Yashiro and Nagata, 2001), Sm 6 Fe 23 (Samata, Sakamoto, Yashiro and Nagata, 2001;, and Nd 6 Fe 13 -x Al 1+x were grown using this technique. In the latter case a Nd(Al)-rich flux was utilized.…”

Section: Sm X Fe Y and Miscellaneous Compoundsmentioning

confidence: 99%

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Crystal Growth of Magnetic Materials

Behr

Löser

2007

Handbook of Magnetism and Advanced Magnetic Materials

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In this chapter, the various methods for crystal growth of magnetic materials are summarized and principles of choosing the appropriate growth method, which depends on phase diagram features of the alloy system, the required size, physical, and chemical perfection of single crystalline samples, are briefly discussed. The crystal growth of the following classes of materials is considered: soft magnetic pure metals and alloys, highly anisotropic compounds for high‐density magnetic recording media, rare earth–transition metal compounds for high‐performance permanent magnets, high‐magnetostrictive intermetallic compounds and ferromagnetic shape memory alloys for magnetomechanical applications, magnetocaloric materials, selected intermetallic compounds for spintronics, multiferroic materials, and some other less‐common magnetic compounds.

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