Magnetic ordering in TlCo2-xNixSe2 with the ThCr2Si2 structure

Newmark, Andrea R.; Huan, G.; Greenblatt, Martha; Croft, Mark

doi:10.1016/0038-1098(89)90584-x

Cited by 35 publications

(49 citation statements)

References 19 publications

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“…Recently, the magnetic and crystal structure of this compound has been extensively investigated [4,5]. Powder neutron diffraction [4] data indicated an incommensurate helix running along the caxis with a turn angle of B121 : Newmark et al [5] predicted an antiferromagnetic ordering of the Co atoms between adjacent sheets. The model proposed by Berger et al [4] was deduced from weak magnetic contributions in the powder diffraction pattern, therefore a singlecrystal study was suggested.…”

mentioning

confidence: 99%

On the magnetic structure of TlCo2Se2

Lizárraga¹,

Ronneteg²,

Berger³

et al. 2004

Journal of Magnetism and Magnetic Materials

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mentioning

confidence: 99%

On the magnetic structure of TlCo2Se2

Lizárraga¹,

Ronneteg²,

Berger³

et al. 2004

Journal of Magnetism and Magnetic Materials

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“…TlNi 2 S 2 compound is also a Pauli paramagnetic metal, similar to that in TlNi 2 Se 2 compound, reported first by A.R. Newmark [13], who did not observe any superconducting transition above 2 K. After our discovery of a multi-band SC in TlNi 2 Se 2 crystal, we grew successfully a series of TlNi 2 Se 2−x S x (0.0 ≤ x ≤2.0) single crystals and rechecked their structure and physical properties. SC with T C =2.3 K has been observed in TlNi 2 S 2 , and appears also to involve heavy electrons with an effective mass m * =14∼20 m e , although its T C is a little lower than that in TlNi 2 Se 2 (T C =3.7 K).…”

mentioning

confidence: 75%

Superconductivity and disorder effect in TlNi₂Se_2−xS_xcompounds

Wang¹,

Mao²,

Chen³

et al. 2015

J. Phys.: Condens. Matter

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After our first discovery of the multi-band superconductivity (SC) in TlNi2Se2 crystal, we grew successfully a series of TlNi2Se2−xSx (0.0 ≤ x ≤ 2.0) single crystals. The measurements of resistivity, specific heat and susceptibility were carried out for them. Superconductivity with T C =2.3K was first observed in TlNi2S2 crystal, which also appears to involve heavy electrons with an effective mass m*=13∼25 m b , as inferred from the normal state electronic specific heat and the upper critical field, H C2(T), respectively. It was found that bulk superconductivity and heavy electron behavior is preserved in all the TlNi2Se2−xSx samples. In the mixed state, a novel change of the field dependence of the residual specific heat coefficient, γN (H), occurs in TlNi2Se2−xSx, with increasing of the S content. We also found that the TC value changes with the disorder degree induced by the partial substitution of S for Se, characterized by the residual resistivity ratio (RRR). Thus, TlNi2Se2−xSx system provides a platform to study the effect of disorder on the multi-band superconductivity.

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“…The compositional and displacive AMFs describing the perturbations away from these average occupancies and positions depend upon (r I #T), i.e., the position of the th ion ( "Tl, Co/Cu, or Se) in the Tth (T"ua#vb#wc; u, v, w are integers) unit cell of the average Fmmm structure (9}13) and can be written in the form ;cos+2 m[q ) (r I #T)# ]# (m), [2] respectively, where m is a positive integer and labels the particular modulation wave harmonic, and q, the primary modulation wave vector, is given by q&0.184a*. The modulation wave amplitudes and phases for each particular harmonic order are given by a I (m), (m) and I (m), (m), respectively.…”

Section: Atomic Modulation Functions (Amfs)mentioning

confidence: 99%