Neutron diffraction study of magnetic structures in TbNiAl

Javorský, P.; Burlet, P.; Sechovský, V.; Андреев, А.В.; Brown, J. M.; Svoboda, P.

doi:10.1016/s0304-8853(96)00434-9

Cited by 38 publications

(45 citation statements)

References 12 publications

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“…The frustrated moments start to propagate along different equivalent directions, for example, with propagation vector (0, 1 2 , 1 2 ) below T 1 . The strong frustration is removed below T 1 and finally all Tb moments reach the same value at 2 K. 7 The large magnetocrystalline anisotropy with an anisotropy field above 35 T was demonstrated by magnetization measurements on a single crystal. 7 The metamagnetic transition to a ferromagnetic state occurs when applying an external magnetic field of 0.4 T along the c axis at 2 K, whereas the magnetic structure is almost insensitive to magnetic fields applied perpendicular to the c axis.…”

Section: Introductionmentioning

confidence: 96%

“…The strong frustration is removed below T 1 and finally all Tb moments reach the same value at 2 K. 7 The large magnetocrystalline anisotropy with an anisotropy field above 35 T was demonstrated by magnetization measurements on a single crystal. 7 The metamagnetic transition to a ferromagnetic state occurs when applying an external magnetic field of 0.4 T along the c axis at 2 K, whereas the magnetic structure is almost insensitive to magnetic fields applied perpendicular to the c axis. 7 The strong magnetocrystalline anisotropy reflects also in a highly anisotropic magnetocaloric properties.…”

Section: Introductionmentioning

confidence: 96%

“…7,[9][10][11][12][13] This compound orders antiferromagnetically below T N ∼ = 45 K and undergoes further magnetic phase transition at T 1 = 23 K. Neutron diffraction studies on polycrystalline samples 9 and on single crystal 7 reveal that the antiferromagnetic order in TbNiAl is characterized by a propagation vector ( 1 2 ,0, 1 2 ) with Tb magnetic moments oriented along the c axis in both magnetic phases. One-third of the moments is strongly reduced to almost zero between T N and T 1 due to a geometrical frustration.…”

Section: Introductionmentioning

confidence: 99%

“…6 The subject of this paper is the development of magnetic properties in the TbNi(Al,In) series. The type of anisotropy is expected to change between easy-axis type (TbNiAl) 7 and easy-plane type (TbNiIn). 8 Because the Al-In substitution is isoelectronic, we expect that changes of the magnetic properties are primarily driven by the structural changes which are here much more significant than in previously studied Tb(Ni,Pd)Al or Er(Au,Ni)In (see below the results of crystal structure).…”

Section: Introductionmentioning

confidence: 99%

“…7 The metamagnetic transition to a ferromagnetic state occurs when applying an external magnetic field of 0.4 T along the c axis at 2 K, whereas the magnetic structure is almost insensitive to magnetic fields applied perpendicular to the c axis. 7 The strong magnetocrystalline anisotropy reflects also in a highly anisotropic magnetocaloric properties. 14 The magnetic properties of TbNiIn have been studied less intensively.…”

Section: Introductionmentioning

confidence: 99%

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Development of magnetic order in the TbNi(Al,In) series and magnetocrystalline anisotropy in TbTXcompounds

Klicpera¹,

Javorský²,

Orench³

2011

Phys. Rev. B

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We report on the magnetic structures in the TbNiAl 1−x In x compounds as determined by powder neutron diffraction. These compounds belong to a large family of ternary rare-earth intermetallics crystallizing in the ZrNiAl-type hexagonal structure. All studied compounds order magnetically with magnetic structures characterized by k 1 = (0,0,0) and k 2 = ( 1 2 ,0, 1 2 ) propagation vectors and magnetic moments aligned along or perpendicular to the hexagonal c axis. The magnetocrystalline anisotropy changes from uniaxial in the In-poor compounds (x 0.4) to planar in the In-rich compounds (x 0.5). The change of magnetocrystalline anisotropy type is a consequence of the development of structural parameters in the studied series. The Tb moments are oriented along the c axis when the nearest Tb-Tb distances between the planes are large compared to those within the planes, whereas Tb moments lie within the basal planes in the opposite case. This picture relating the structural parameters and anisotropy type can be generalized to the whole group of Tb-based compounds with the ZrNiAl type of structure.

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Section: Introductionmentioning

confidence: 96%