Resonant photoemission at the L-3 absorption edge of Mn and Ti and the electronic structure of 1T-Mn0.2TiSe2 / Yablonskikh M. V.,Shkvarin A. S.,Yarmoshenko Y. M.,Skorikov N. A.,Titov A. N. // JOURNAL OF PHYSICS-CONDENSED MATTER. - 2012. - V. 24, l. 4.

ISSN/EISSN:

0953-8984 / нет данных

Type:

Article

Abstract:

Resonant valence band x-ray photoelectron spectra (ResPES) excited near the 2p(3/2) core level energies, 2p x-ray photoelectron spectra (XPS) and L-3,L-2 x-ray absorption spectra (XAS) of Ti and Mn in single crystals of 1T-Mn0.2TiSe2 were studied for the first time. The ionic-covalent character of the bonds formed by the Mn atoms with the neighboring Se atoms in the octahedral coordination is established. From the XPS and XAS measurements compared with the results of atomic multiplet calculations of Ti and Mn L-3,L-2 XAS, it is found that the Ti atoms are in the ionic state of 4+ and the Mn atoms are in the state of 2+. In ResPES of Mn0.2TiSe2 excited near the Ti 2p(3/2) and Mn 2p(3/2) absorption edges the Ti 3d and Mn 3d bands at binding energies just below the Fermi level are observed. According to theoretical calculations of E(k) the Ti 3d states are localized in the vicinity of the 0 point and the Mn 3d states are localized along the direction K-Gamma-M in the Brillouin zone of the crystal.

Author keywords:

MAGNETIC-PROPERTIES; TRANSITION-METALS; INTERCALATION COMPOUNDS; LAYERED DICHALCOGENIDES; BAND-STRUCTURE; TISE2; TITANIUM; SUPERCONDUCTIVITY; SCATTERING; LEVEL

DOI:

10.1088/0953-8984/24/4/045504

Web of Science ID:

ISI:000299326100013

Соавторы в МНС:

Другие поля

Поле	Значение
Month	FEB 1
Publisher	IOP PUBLISHING LTD
Address	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Language	English
Article-Number	045504
Keywords-Plus	MAGNETIC-PROPERTIES; TRANSITION-METALS; INTERCALATION COMPOUNDS; LAYERED DICHALCOGENIDES; BAND-STRUCTURE; TISE2; TITANIUM; SUPERCONDUCTIVITY; SCATTERING; LEVEL
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	mikhail.yablonskikh@gmail.com
ResearcherID-Numbers	Shkvarin, Alexey/J-4275-2013 Yarmoshenko, Yuri/E-9531-2011 Skorikov, Nikolay/A-6728-2012 Titov, Alexander/K-4328-2013
ORCID-Numbers	Shkvarin, Alexey/0000-0002-3774-5669 Yarmoshenko, Yuri/0000-0001-8971-2052 Skorikov, Nikolay/0000-0002-3771-8708 Titov, Alexander/0000-0003-3636-2604
Funding-Acknowledgement	RFBR {[}N 09-03-00053]
Funding-Text	We acknowledge the financial support of the RFBR, grant N 09-03-00053. We are thankful to F de Groot and E Stavitski for the opportunity to use their XAS code, Mikhail Korotin for useful recommendations, Federica Bondino for an introduction to the beamline and Michele Zacchigna for fruitful scientific discussion and careful recommendations.
Number-of-Cited-References	38
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	38
Journal-ISO	J. Phys.-Condes. Matter
Doc-Delivery-Number	879JS