First ionization potentials of tungsten and rhenium by mass-selected double-resonance ionization spectroscopy

Margot D. Campbell-Miller; Benoit Simard

doi:10.1364/JOSAB.13.002115

Journal of the Optical Society of America B
Vol. 13,
Issue 10,
pp. 2115-2120
(1996)
•https://doi.org/10.1364/JOSAB.13.002115

First ionization potentials of tungsten and rhenium by mass-selected double-resonance ionization spectroscopy

Margot D. Campbell-Miller and Benoit Simard

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Margot D. Campbell-Miller and Benoit Simard, "First ionization potentials of tungsten and rhenium by mass-selected double-resonance ionization spectroscopy," J. Opt. Soc. Am. B 13, 2115-2120 (1996)

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Abstract

We have determined the first ionization potentials of tungsten and rhenium atoms to be 63427.7 ± 0.8 cm⁻¹ (7.86404 ± 0.00010 eV) (2σ error bound) and 63181.6 ± 0.9 cm⁻¹ (7.83352 ± 0.00011 eV), respectively, by fitting ns and nd Rydberg series obtained by performing mass-selected double-resonance ionization spectroscopy on supersonic beams of laser-vaporized tungsten and rhenium atoms.

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Atom	Type of Series	Range of n Fitted	${\bar{ν}}_{0} ({cm}^{- 1})$	Quantum Defect	rms of Fit (cm⁻¹)
W	s	41–50	63 427.73(15)	4.673(54)	0.068
W	d	31–53	63 427.72 (7)	2.983(15)	0.056
Re	s	30–47	63 181.6 (2)	4.50 (3)	0.12
Re	d	29–46	63 181.7 (2)	2.96 (3)	0.13

s Series		d Series
n Value	Wave Number (cm⁻¹)	n Value	Wave Number (cm⁻¹)	n Value	Wave Number (cm⁻¹)
41	63 344.5	31	63 288.0	40	63 346.7
42	63 349.1	32	63 297.4	41	63 351.1
43	63 353.0	33	63 306.0	42	63 354.8
44	63 356.8	34	63 313.6	43	63 358.4
45	63 360.3	36	63 327.0	44	63 361.6
46	63 363.4	38	63 338.2	45	63 364.7
47	63 366.4	39	63 343.1	46	63 367.6
48	63 369.2	40	63 347.7	47	63 370.2
49	63 371.8	41	63 351.7	48	63 372.8
50	63 374.5	42	63 355.6	49	63 375.0
		43	63 359.2	50	63 377.0
		44	63 362.4	51	63 379.3
		45	63 365.6
		46	63 368.4
		47	63 371.1
		48	63 373.5
		49	63 375.9
		50	63 378.2
		51	63 380.2
		52	63 382.1
		53	63 383.9

s Series		d Series
n Value	Wave Number (cm⁻¹)	n Value	Wave Number (cm⁻¹)
30	63 012.7	29	63 020.0
31	63 025.3	30	63 031.5
32	63 036.7	31	63 041.9
33	63 046.4	32	63 051.5
34	63 055.5	33	63 060.1
35	63 063.7	34	63 067.9
36	63 071.1	35	63 074.7
37	63 077.7	36	63 081.3
38	63 083.9	37	63 087.1
39	63 089.3	38	63 092.5
40	63 094.7	39	63 097.4
41	63 099.1	40	63 101.7
42	63 103.5	41	63 105.8
43	63 107.5	42	63 109.7
44	63 111.3	43	63 113.1
45	63 114.7	44	63 116.5
46	63 117.7	45	63 119.3
47	63 121.1	46	63 122.5

W		Re
IP (cm⁻¹)	Reference	IP (cm⁻¹)	Reference	Method
63 428 ± 2	This work	63 181 ± 2	This work	1a
63 427.7 ± 0.8	This work	63 181.6 ± 0.9	This work	2b
64 360 ± 640	7	63 480	8	3c
63 070 ± 650	12	62 590 ± 240	12	4d

Atom	Type of Series	Range of n Fitted	${\bar{ν}}_{0} ({cm}^{- 1})$	Quantum Defect	rms of Fit (cm⁻¹)
W	s	41–50	63 427.73(15)	4.673(54)	0.068
W	d	31–53	63 427.72 (7)	2.983(15)	0.056
Re	s	30–47	63 181.6 (2)	4.50 (3)	0.12
Re	d	29–46	63 181.7 (2)	2.96 (3)	0.13

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