Phase Transition and Spin-gap Behavior in a Layered Tetragonal Pnictide Oxide

E. A. Axtell; Tadashi Ozawa; Susan M. Kauzlarich; Rajiv R P Singh

doi:10.1006/jssc.1997.7715

Phase Transition and Spin-gap Behavior in a Layered Tetragonal Pnictide Oxide

E. A. Axtell, Tadashi Ozawa, Susan M. Kauzlarich, Rajiv R P Singh

Chemistry

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

86 Scopus citations

Abstract

Spin-gap behavior has been observed for the first time in the layered tetragonal compound Na₂Ti₂Sb₂O. Na₂Ti₂Sb₂O shows a sharp discontinuity in magnetic susceptibility at 150 K, reminisent of behavior observed in the spin-Peierls compound CuGeO₃. Na₂Ti₂Sb₂O also shows a discontinuity in temperature-dependent resistivity at the magnetic transition and metallic behavior for all other temperatures, 5.7 mΩ·cm at room temperature. Ti-Sb-Ti superexchange is proposed to be favored over Ti-O-Ti superexchange, based on the high-temperature magnetic susceptibility data and on the identity of the magnetic orbitals.

Original language	English (US)
Pages (from-to)	423-426
Number of pages	4
Journal	Journal of Solid State Chemistry
Volume	134
Issue number	2
DOIs	https://doi.org/10.1006/jssc.1997.7715
State	Published - Dec 1997

ASJC Scopus subject areas

Inorganic Chemistry
Physical and Theoretical Chemistry
Materials Chemistry

Access to Document

10.1006/jssc.1997.7715

Fingerprint Dive into the research topics of 'Phase Transition and Spin-gap Behavior in a Layered Tetragonal Pnictide Oxide'. Together they form a unique fingerprint.

Cite this

@article{085e34b3ad904d52af421a9f9f6ace07,

title = "Phase Transition and Spin-gap Behavior in a Layered Tetragonal Pnictide Oxide",

abstract = "Spin-gap behavior has been observed for the first time in the layered tetragonal compound Na2Ti2Sb2O. Na2Ti2Sb2O shows a sharp discontinuity in magnetic susceptibility at 150 K, reminisent of behavior observed in the spin-Peierls compound CuGeO3. Na2Ti2Sb2O also shows a discontinuity in temperature-dependent resistivity at the magnetic transition and metallic behavior for all other temperatures, 5.7 mΩ·cm at room temperature. Ti-Sb-Ti superexchange is proposed to be favored over Ti-O-Ti superexchange, based on the high-temperature magnetic susceptibility data and on the identity of the magnetic orbitals.",

author = "Axtell, {E. A.} and Tadashi Ozawa and Kauzlarich, {Susan M.} and Singh, {Rajiv R P}",

year = "1997",

month = dec,

doi = "10.1006/jssc.1997.7715",

language = "English (US)",

volume = "134",

pages = "423--426",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press Inc.",

number = "2",

}

TY - JOUR

T1 - Phase Transition and Spin-gap Behavior in a Layered Tetragonal Pnictide Oxide

AU - Axtell, E. A.

AU - Ozawa, Tadashi

AU - Kauzlarich, Susan M.

AU - Singh, Rajiv R P

PY - 1997/12

Y1 - 1997/12

N2 - Spin-gap behavior has been observed for the first time in the layered tetragonal compound Na2Ti2Sb2O. Na2Ti2Sb2O shows a sharp discontinuity in magnetic susceptibility at 150 K, reminisent of behavior observed in the spin-Peierls compound CuGeO3. Na2Ti2Sb2O also shows a discontinuity in temperature-dependent resistivity at the magnetic transition and metallic behavior for all other temperatures, 5.7 mΩ·cm at room temperature. Ti-Sb-Ti superexchange is proposed to be favored over Ti-O-Ti superexchange, based on the high-temperature magnetic susceptibility data and on the identity of the magnetic orbitals.

AB - Spin-gap behavior has been observed for the first time in the layered tetragonal compound Na2Ti2Sb2O. Na2Ti2Sb2O shows a sharp discontinuity in magnetic susceptibility at 150 K, reminisent of behavior observed in the spin-Peierls compound CuGeO3. Na2Ti2Sb2O also shows a discontinuity in temperature-dependent resistivity at the magnetic transition and metallic behavior for all other temperatures, 5.7 mΩ·cm at room temperature. Ti-Sb-Ti superexchange is proposed to be favored over Ti-O-Ti superexchange, based on the high-temperature magnetic susceptibility data and on the identity of the magnetic orbitals.

UR - http://www.scopus.com/inward/record.url?scp=0000799547&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000799547&partnerID=8YFLogxK

U2 - 10.1006/jssc.1997.7715

DO - 10.1006/jssc.1997.7715

M3 - Article

AN - SCOPUS:0000799547

VL - 134

SP - 423

EP - 426

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

SN - 0022-4596

IS - 2

ER -