NDLI: Hyperfine Interactions of 181Ta in Zr2Ni Observed Using PAC Spectroscopy

Content Provider	Springer Nature Link
Author	Poyr, A. N. Cumblidge, S. E. Rasera, R. L. Catchen, G. L. Motta, A. T.
Copyright Year	2001
Abstract	We have measured nuclear electric–quadrupole interactions (EQI) at 181Ta impurities substituted as Hf atoms into the Zr site in Zr2Ni. Using perturbed-angular-correlation (PAC) spectroscopy, we measured the EQI over temperatures ranging from 10 to 1200 K. Over the entire range of temperature, the Zr2Ni crystal has a bct Al2Cu structure that includes a single Zr site. The crystal field symmetry surrounding this site is rather low, giving rise to a highly asymmetric electric-field gradient tensor. At 10 K, the EQI is characterized by an angular frequency ω0=601(3) Mrad s−1, and an asymmetry parameter η=0.835(2). At 1200 K, ω0 decreases to 516(3) Mrad s−1, and η also decreases to 0.790(4). Although weak, the temperature dependence of ω0 is consistent with a (1−BT 3/2) power law, in which B=6×10−6 K−3/2. The EQI also manifests a very narrow linewidth. We observed no evidence either for magnetic ordering or for structural phase transitions in the temperature range covered by this experiment. Moreover, the sharpness of the EQI indicates that the samples as prepared are remarkably free of strain and defects. These results indicate that the Zr2Ni structure does not promote the formation of defects and that the power-law dependence of ω0 on T is insensitive to the asymmetric nature of the crystal.
Starting Page	549
Ending Page	553
Page Count	5
File Format	PDF
ISSN	03043843
Journal	Hyperfine Interactions
Volume Number	136
Issue Number	3-8
e-ISSN	15729540
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2001-01-01
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Surfaces and Interfaces, Thin Films Nuclear Physics, Heavy Ions, Hadrons Atoms, Molecules, Clusters and Plasmas Condensed Matter
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Atomic and Molecular Physics, and Optics Physical and Theoretical Chemistry Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Hyperfine Interactions at 181Ta in Hf2Co7

Hyperfine Fields of 181Ta in UFe4Al8

Hf2Ni and Zr2Ni Compounds Studied by PAC with 111Cd Probes

Hyperfine Interaction of Metamict Zircon Studied by PAC Spectroscopy

Hyperfine Interactions in Tb3In5

Investigation of Hyperfine Interactions in GdNiIn Compound

Hyperfine Interactions in the Sr0.88Ba0.12HfO3 Compound

Theoretical aspects of hyperfine interactions

Hyperfine interactions in cubic perovskites

Hyperfine Interactions of 181Ta in Zr2Ni Observed Using PAC Spectroscopy

Similar Documents

Hyperfine Interactions at 181Ta in Hf2Co7

Hyperfine Fields of 181Ta in UFe4Al8

Hf2Ni and Zr2Ni Compounds Studied by PAC with 111Cd Probes

Hyperfine Interaction of Metamict Zircon Studied by PAC Spectroscopy

Hyperfine Interactions in Tb3In5

Investigation of Hyperfine Interactions in GdNiIn Compound

Hyperfine Interactions in the Sr0.88Ba0.12HfO3 Compound

Theoretical aspects of hyperfine interactions

Hyperfine interactions in cubic perovskites

Hyperfine Interactions of 181Ta in Zr2Ni Observed Using PAC Spectroscopy