Long-range order and spin-liquid states of polycrystalline Tb 2+xTi2-xO7+y

T. Taniguchi; H. Kadowaki; H. Takatsu; B. Fåk; J. Ollivier; Teruo Yamazaki; T. J. Sato; H. Yoshizawa; Y. Shimura; T. Sakakibara; T. Hong; K. Goto; L. R. Yaraskavitch; J. B. Kycia

doi:10.1103/PhysRevB.87.060408

Long-range order and spin-liquid states of polycrystalline Tb _2+xTi_2-xO_7+y

T. Taniguchi^*, H. Kadowaki, H. Takatsu, B. Fåk, J. Ollivier, Teruo Yamazaki, T. J. Sato, H. Yoshizawa, Y. Shimura, T. Sakakibara, T. Hong, K. Goto, L. R. Yaraskavitch, J. B. Kycia

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

Low-temperature states of polycrystalline samples of a frustrated pyrochlore oxide Tb_2+xTi_2-xO_7+y have been investigated by specific heat, magnetic susceptibility, and neutron scattering experiments. We have found that this system can be tuned by a minute change of x from a spin-liquid state (x<x_c) to a partly ordered state with a small antiferromagnetic ordering of the order of 0.1μ_B. Specific heat shows a sharp peak at a phase transition at T_c=0.5 K for x=0.005. Magnetic excitation spectra for this sample change from a quasielastic to a gapped type through T_c. The possibility of a Jahn-Teller transition is discussed.

Original language	English
Article number	060408
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	87
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.87.060408
Publication status	Published - 2013 Feb 25
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.87.060408

Cite this

Taniguchi, T., Kadowaki, H., Takatsu, H., Fåk, B., Ollivier, J., Yamazaki, T., Sato, T. J., Yoshizawa, H., Shimura, Y., Sakakibara, T., Hong, T., Goto, K., Yaraskavitch, L. R., & Kycia, J. B. (2013). Long-range order and spin-liquid states of polycrystalline Tb _2+xTi_2-xO_7+y Physical Review B - Condensed Matter and Materials Physics, 87(6), [060408]. https://doi.org/10.1103/PhysRevB.87.060408

Taniguchi, T, Kadowaki, H, Takatsu, H, Fåk, B, Ollivier, J, Yamazaki, T, Sato, TJ, Yoshizawa, H, Shimura, Y, Sakakibara, T, Hong, T, Goto, K, Yaraskavitch, LR & Kycia, JB 2013, 'Long-range order and spin-liquid states of polycrystalline Tb _2+xTi_2-xO_7+y ', Physical Review B - Condensed Matter and Materials Physics, vol. 87, no. 6, 060408. https://doi.org/10.1103/PhysRevB.87.060408

@article{26a97ae224e742ee9a112ff5013eb8ba,

title = "Long-range order and spin-liquid states of polycrystalline Tb 2+xTi2-xO7+y ",

abstract = "Low-temperature states of polycrystalline samples of a frustrated pyrochlore oxide Tb2+xTi2-xO7+y have been investigated by specific heat, magnetic susceptibility, and neutron scattering experiments. We have found that this system can be tuned by a minute change of x from a spin-liquid state (xc) to a partly ordered state with a small antiferromagnetic ordering of the order of 0.1μB. Specific heat shows a sharp peak at a phase transition at Tc=0.5 K for x=0.005. Magnetic excitation spectra for this sample change from a quasielastic to a gapped type through Tc. The possibility of a Jahn-Teller transition is discussed.",

author = "T. Taniguchi and H. Kadowaki and H. Takatsu and B. F{\aa}k and J. Ollivier and Teruo Yamazaki and Sato, {T. J.} and H. Yoshizawa and Y. Shimura and T. Sakakibara and T. Hong and K. Goto and Yaraskavitch, {L. R.} and Kycia, {J. B.}",

year = "2013",

month = feb,

day = "25",

doi = "10.1103/PhysRevB.87.060408",

language = "English",

volume = "87",

journal = "Physical Review B-Condensed Matter",

issn = "0163-1829",

publisher = "American Institute of Physics Publising LLC",

number = "6",

}

TY - JOUR

T1 - Long-range order and spin-liquid states of polycrystalline Tb 2+xTi2-xO7+y

AU - Taniguchi, T.

AU - Kadowaki, H.

AU - Takatsu, H.

AU - Fåk, B.

AU - Ollivier, J.

AU - Yamazaki, Teruo

AU - Sato, T. J.

AU - Yoshizawa, H.

AU - Shimura, Y.

AU - Sakakibara, T.

AU - Hong, T.

AU - Goto, K.

AU - Yaraskavitch, L. R.

AU - Kycia, J. B.

PY - 2013/2/25

Y1 - 2013/2/25

N2 - Low-temperature states of polycrystalline samples of a frustrated pyrochlore oxide Tb2+xTi2-xO7+y have been investigated by specific heat, magnetic susceptibility, and neutron scattering experiments. We have found that this system can be tuned by a minute change of x from a spin-liquid state (xc) to a partly ordered state with a small antiferromagnetic ordering of the order of 0.1μB. Specific heat shows a sharp peak at a phase transition at Tc=0.5 K for x=0.005. Magnetic excitation spectra for this sample change from a quasielastic to a gapped type through Tc. The possibility of a Jahn-Teller transition is discussed.

AB - Low-temperature states of polycrystalline samples of a frustrated pyrochlore oxide Tb2+xTi2-xO7+y have been investigated by specific heat, magnetic susceptibility, and neutron scattering experiments. We have found that this system can be tuned by a minute change of x from a spin-liquid state (xc) to a partly ordered state with a small antiferromagnetic ordering of the order of 0.1μB. Specific heat shows a sharp peak at a phase transition at Tc=0.5 K for x=0.005. Magnetic excitation spectra for this sample change from a quasielastic to a gapped type through Tc. The possibility of a Jahn-Teller transition is discussed.

UR - http://www.scopus.com/inward/record.url?scp=84874523942&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84874523942&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.87.060408

DO - 10.1103/PhysRevB.87.060408

M3 - Article

AN - SCOPUS:84874523942

SN - 0163-1829

VL - 87

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

IS - 6

M1 - 060408

ER -

Long-range order and spin-liquid states of polycrystalline Tb _2+xTi_2-xO_7+y

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this