Infrared Studies of 1T-TaS_2

Lev Gasparov; Kenneth N. Brown; Anthony Wint; David B. Tanner; Helmuth Berger; Laszlo Forro; Giorgio Margaritondo

Infrared Studies of 1T-TaS_2

Lev Gasparov, Kenneth N. Brown, Anthony Wint, David B. Tanner, Helmuth Berger, Laszlo Forro, Giorgio Margaritondo

Research output: Contribution to conference › Abstract › peer-review

Abstract

We present temperature-dependent reflectance measurements of layered transition metal dichalcogenide 1T-TaS2 in the frequency range from 100 to 40,000 cm-1 (0.012--5 eV). 1T-TaS2 undergoes two metal-insulator transitions at T=350 K, and 180K. Both transitions lead to decrease of low frequency optical conductivity with second transition demonstrating hysteresis both in dc- and optical conductivity. We discuss how the metal-insulator transitions affect free carriers, direct optical transitions and phonon spectrum of the 1T-TaS_2.

Original language	American English
State	Published - Mar 2002
Event	American Physical Society Meeting, 2002 - Indianapolis, United States Duration: Mar 18 2002 → Mar 22 2002

Conference

Conference	American Physical Society Meeting, 2002
Country/Territory	United States
City	Indianapolis
Period	3/18/02 → 3/22/02

Disciplines

Ceramic Materials

Cite this

@conference{5edcd8823efc47c8a49a7f53292e2168,

title = "Infrared Studies of 1T-TaS_2",

abstract = "We present temperature-dependent reflectance measurements of layered transition metal dichalcogenide 1T-TaS2 in the frequency range from 100 to 40,000 cm-1 (0.012--5 eV). 1T-TaS2 undergoes two metal-insulator transitions at T=350 K, and 180K. Both transitions lead to decrease of low frequency optical conductivity with second transition demonstrating hysteresis both in dc- and optical conductivity. We discuss how the metal-insulator transitions affect free carriers, direct optical transitions and phonon spectrum of the 1T-TaS_2.",

author = "Lev Gasparov and Brown, {Kenneth N.} and Anthony Wint and Tanner, {David B.} and Helmuth Berger and Laszlo Forro and Giorgio Margaritondo",

year = "2002",

month = mar,

language = "American English",

note = "American Physical Society Meeting, 2002 ; Conference date: 18-03-2002 Through 22-03-2002",

}

TY - CONF

T1 - Infrared Studies of 1T-TaS_2

AU - Gasparov, Lev

AU - Brown, Kenneth N.

AU - Wint, Anthony

AU - Tanner, David B.

AU - Berger, Helmuth

AU - Forro, Laszlo

AU - Margaritondo, Giorgio

PY - 2002/3

Y1 - 2002/3

N2 - We present temperature-dependent reflectance measurements of layered transition metal dichalcogenide 1T-TaS2 in the frequency range from 100 to 40,000 cm-1 (0.012--5 eV). 1T-TaS2 undergoes two metal-insulator transitions at T=350 K, and 180K. Both transitions lead to decrease of low frequency optical conductivity with second transition demonstrating hysteresis both in dc- and optical conductivity. We discuss how the metal-insulator transitions affect free carriers, direct optical transitions and phonon spectrum of the 1T-TaS_2.

AB - We present temperature-dependent reflectance measurements of layered transition metal dichalcogenide 1T-TaS2 in the frequency range from 100 to 40,000 cm-1 (0.012--5 eV). 1T-TaS2 undergoes two metal-insulator transitions at T=350 K, and 180K. Both transitions lead to decrease of low frequency optical conductivity with second transition demonstrating hysteresis both in dc- and optical conductivity. We discuss how the metal-insulator transitions affect free carriers, direct optical transitions and phonon spectrum of the 1T-TaS_2.

UR - http://adsabs.harvard.edu/abs/2002APS..MARU20007G

M3 - Abstract

T2 - American Physical Society Meeting, 2002

Y2 - 18 March 2002 through 22 March 2002

ER -

Infrared Studies of 1T-TaS_2

Abstract

Conference

Disciplines

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