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

Research output: Contribution to journalArticle

62 Citations (Scopus)

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 (x<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.

Original languageEnglish
Article number060408
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume87
Issue number6
DOIs
Publication statusPublished - 2013 Feb 25
Externally publishedYes

Fingerprint

Specific heat
specific heat
Liquids
liquids
Neutron scattering
Magnetic susceptibility
Oxides
neutron scattering
Phase transitions
magnetic permeability
oxides
excitation
Experiments
Temperature
pyrochlore

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Taniguchi, T., Kadowaki, H., Takatsu, H., Fåk, B., Ollivier, J., Yamazaki, T., ... Kycia, J. B. (2013). Long-range order and spin-liquid states of polycrystalline Tb 2+xTi2-xO7+y Physical Review B - Condensed Matter and Materials Physics, 87(6), [060408]. https://doi.org/10.1103/PhysRevB.87.060408

Long-range order and spin-liquid states of polycrystalline Tb 2+xTi2-xO7+y . / Taniguchi, T.; Kadowaki, H.; Takatsu, H.; Fåk, B.; Ollivier, J.; Yamazaki, Teruo; Sato, T. J.; Yoshizawa, H.; Shimura, Y.; Sakakibara, T.; Hong, T.; Goto, K.; Yaraskavitch, L. R.; Kycia, J. B.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 87, No. 6, 060408, 25.02.2013.

Research output: Contribution to journalArticle

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+xTi2-xO7+y ', Physical Review B - Condensed Matter and Materials Physics, vol. 87, no. 6, 060408. https://doi.org/10.1103/PhysRevB.87.060408
Taniguchi, T. ; Kadowaki, H. ; Takatsu, H. ; Fåk, B. ; Ollivier, J. ; Yamazaki, Teruo ; Sato, T. J. ; Yoshizawa, H. ; Shimura, Y. ; Sakakibara, T. ; Hong, T. ; Goto, K. ; Yaraskavitch, L. R. ; Kycia, J. B. / Long-range order and spin-liquid states of polycrystalline Tb 2+xTi2-xO7+y In: Physical Review B - Condensed Matter and Materials Physics. 2013 ; Vol. 87, No. 6.
@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 = "2",
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

VL - 87

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

IS - 6

M1 - 060408

ER -